Impala Properties in CDH 5.7.0

Role groups:

Impala Catalog Server

Categories:

Advanced

Display Name Description Related Name Default Value API Name Required
Catalog Server Command Line Argument Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be added (verbatim) to Catalog Server command line flags. Key names should begin with a hyphen(-). For example: -log_filename=foo.log catalogd_cmd_args_safety_valve false
Impala Catalog Server Advanced Configuration Snippet (Safety Valve) for core-site.xml For advanced use only. A string to be inserted into core-site.xml for this role only. catalogd_core_site_safety_valve false
Catalog Server HBase Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into hbase-site.xml for this role only. catalogd_hbase_conf_safety_valve false
Catalog Server HDFS Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into hdfs-site.xml for this role only. catalogd_hdfs_site_conf_safety_valve false
Catalog Server Hive Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into hive-site.xml for this role only. catalogd_hive_conf_safety_valve false
Java Configuration Options for Catalog Server These arguments will be passed as part of the Java command line. Commonly, garbage collection flags, PermGen, or extra debugging flags would be passed here. Note: When CM version is 6.3.0 or greater, {{JAVA_GC_ARGS}} will be replaced by JVM Garbage Collection arguments based on the runtime Java JVM version. catalogd_java_opts false
Impala Catalog Server Environment Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be inserted into a role's environment. Applies to configurations of this role except client configuration. CATALOGSERVER_role_env_safety_valve false
Catalog Server Core Dump Directory Directory where the Catalog Server core dump is placed. core_dump_dir /var/log/catalogd core_dump_dir false
Catalog Server Hive Metastore Connection Timeout Timeout for requests to the Hive Metastore Server from Catalog Server. Consider increasing this if you have tables with a lot of metadata and see timeout errors. hive.metastore.client.socket.timeout 1 hour(s) hive_metastore_timeout false
Load Catalog in Background If true, loads catalog metadata in the background. If false, metadata is loaded lazily (on access). Only effective in CDH 5 and Impala 1.2.4 and higher. load_catalog_in_background false load_catalog_in_background false
Heap Dump Directory Path to directory where heap dumps are generated when java.lang.OutOfMemoryError error is thrown. This directory is automatically created if it does not exist. If this directory already exists, role user must have write access to this directory. If this directory is shared among multiple roles, it should have 1777 permissions. The heap dump files are created with 600 permissions and are owned by the role user. The amount of free space in this directory should be greater than the maximum Java Process heap size configured for this role. oom_heap_dump_dir /tmp oom_heap_dump_dir false
Dump Heap When Out of Memory When set, generates heap dump file when java.lang.OutOfMemoryError is thrown. true oom_heap_dump_enabled true
Kill When Out of Memory When set, a SIGKILL signal is sent to the role process when java.lang.OutOfMemoryError is thrown. true oom_sigkill_enabled true
Automatically Restart Process When set, this role's process is automatically (and transparently) restarted in the event of an unexpected failure. true process_auto_restart true
Enable Metric Collection Cloudera Manager agent monitors each service and each of its role by publishing metrics to the Cloudera Manager Service Monitor. Setting it to false will stop Cloudera Manager agent from publishing any metric for corresponding service/roles. This is usually helpful for services that generate large amount of metrics which Service Monitor is not able to process. true process_should_monitor true

Logs

Display Name Description Related Name Default Value API Name Required
Catalog Server Log Directory Directory where Catalog Server will place its log files. log_dir /var/log/catalogd log_dir false
Impala Catalog Server Logging Threshold The minimum log level for Impala Catalog Server logs INFO log_threshold false
Catalog Server Verbose Log Level Verbose logging level for the GLog logger. These messages are always logged at 'INFO' log level, so this setting has no effect if Logging Threshold is set to 'WARN' or above. GLOG_v 1 log_verbose_level false
Catalog Server Log Buffer Level Buffer log messages logged at this level or lower (-1 means don't buffer; 0 means buffer INFO only; 1 means buffer WARNING only, ...) logbuflevel 0 logbuflevel false
Catalog Server Maximum Log Files The number of log files that are kept for each severity level before all older log files are removed. The number has to be greater than 1 to keep at least the current log file open. If set to 0, all log files are retained and log rotation is effectively disabled. max_log_files 10 max_log_files false
Impala Catalog Server Max Log Size The maximum size, in megabytes, per log file for Impala Catalog Server logs. Typically used by log4j or logback. 200 MiB max_log_size false

Monitoring

Display Name Description Related Name Default Value API Name Required
Catalog Server Connectivity Health Test Enables the health test that verifies the Catalog Server is connected to the StateStore true catalogserver_connectivity_health_enabled false
Catalog Server Connectivity Tolerance at Startup The amount of time to wait for the Catalog Server to fully start up and connect to the StateStore before enforcing the connectivity check. 3 minute(s) catalogserver_connectivity_tolerance false
File Descriptor Monitoring Thresholds The health test thresholds of the number of file descriptors used. Specified as a percentage of file descriptor limit. Warning: 50.0 %, Critical: 70.0 % catalogserver_fd_thresholds false
Impala Catalog Server Host Health Test When computing the overall Impala Catalog Server health, consider the host's health. true catalogserver_host_health_enabled false
Impala Catalog Server Process Health Test Enables the health test that the Impala Catalog Server's process state is consistent with the role configuration true catalogserver_scm_health_enabled false
Health Test Startup Tolerance The amount of time allowed after this role is started that failures of health tests that rely on communication with this role will be tolerated. 5 minute(s) catalogserver_startup_tolerance false
Web Metric Collection Enables the health test that the Cloudera Manager Agent can successfully contact and gather metrics from the web server. true catalogserver_web_metric_collection_enabled false
Web Metric Collection Duration The health test thresholds on the duration of the metrics request to the web server. Warning: 10 second(s), Critical: Never catalogserver_web_metric_collection_thresholds false
Enable Health Alerts for this Role When set, Cloudera Manager will send alerts when the health of this role reaches the threshold specified by the EventServer setting eventserver_health_events_alert_threshold true enable_alerts false
Enable Configuration Change Alerts When set, Cloudera Manager will send alerts when this entity's configuration changes. false enable_config_alerts false
Heap Dump Directory Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Warning: 10 GiB, Critical: 5 GiB heap_dump_directory_free_space_absolute_thresholds false
Heap Dump Directory Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Heap Dump Directory Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never heap_dump_directory_free_space_percentage_thresholds false
Log Directory Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Warning: 10 GiB, Critical: 5 GiB log_directory_free_space_absolute_thresholds false
Log Directory Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Log Directory Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never log_directory_free_space_percentage_thresholds false
Navigator Audit Failure Thresholds The health test thresholds for failures encountered when monitoring audits within a recent period specified by the mgmt_navigator_failure_window configuration for the role. The value that can be specified for this threshold is the number of bytes of audits data that is left to be sent to audit server. mgmt.navigator.failure.thresholds Warning: Never, Critical: Any mgmt_navigator_failure_thresholds false
Monitoring Period For Audit Failures The period to review when checking if audits are blocked and not getting processed. mgmt.navigator.failure.window 20 minute(s) mgmt_navigator_failure_window false
Navigator Audit Pipeline Health Check Enable test of audit events processing pipeline. This will test if audit events are not getting processed by Audit Server for a role that generates audit. mgmt.navigator.status.check.enabled true mgmt_navigator_status_check_enabled false
Resident Set Size Thresholds The health test thresholds on the resident size of the process. Warning: Never, Critical: Never process_resident_set_size_thresholds false
Process Swap Memory Thresholds The health test thresholds on the swap memory usage of the process. This takes precedence over the host level threshold. Warning: 200 B, Critical: Never process_swap_memory_thresholds false
Role Triggers The configured triggers for this role. This is a JSON-formatted list of triggers. These triggers are evaluated as part as the health system. Every trigger expression is parsed, and if the trigger condition is met, the list of actions provided in the trigger expression is executed. Each trigger has the following fields:
  • triggerName (mandatory) - The name of the trigger. This value must be unique for the specific role.
  • triggerExpression (mandatory) - A tsquery expression representing the trigger.
  • streamThreshold (optional) - The maximum number of streams that can satisfy a condition of a trigger before the condition fires. By default set to 0, and any stream returned causes the condition to fire.
  • enabled (optional) - By default set to 'true'. If set to 'false', the trigger is not evaluated.
  • expressionEditorConfig (optional) - Metadata for the trigger editor. If present, the trigger should only be edited from the Edit Trigger page; editing the trigger here can lead to inconsistencies.
For example, the following JSON formatted trigger configured for a DataNode fires if the DataNode has more than 1500 file descriptors opened:[{"triggerName": "sample-trigger", "triggerExpression": "IF (SELECT fd_open WHERE roleName=$ROLENAME and last(fd_open) > 1500) DO health:bad", "streamThreshold": 0, "enabled": "true"}]See the trigger rules documentation for more details on how to write triggers using tsquery.The JSON format is evolving and may change and, as a result, backward compatibility is not guaranteed between releases.		 [] role_triggers true
Unexpected Exits Thresholds The health test thresholds for unexpected exits encountered within a recent period specified by the unexpected_exits_window configuration for the role. Warning: Never, Critical: Any unexpected_exits_thresholds false
Unexpected Exits Monitoring Period The period to review when computing unexpected exits. 5 minute(s) unexpected_exits_window false

Other

Display Name Description Related Name Default Value API Name Required
Enable Catalog Server Web Server Enable/Disable Catalog Server web server. This web server contains useful information about Catalog Server daemon. enable_webserver true catalogd_enable_webserver false

Performance

Display Name Description Related Name Default Value API Name Required
Maximum Process File Descriptors If configured, overrides the process soft and hard rlimits (also called ulimits) for file descriptors to the configured value. rlimit_fds false

Ports and Addresses

Display Name Description Related Name Default Value API Name Required
Catalog Server Service Port Port where Catalog Server is exported. catalog_service_port 26000 catalog_service_port false
Catalog Server HTTP Server Port Port where Catalog Server debug web server runs. webserver_port 25020 catalogserver_webserver_port false

Resource Management

Display Name Description Related Name Default Value API Name Required
Java Heap Size of Catalog Server in Bytes Maximum size in bytes for the Java Process heap memory. Passed to Java -Xmx. 4 GiB catalogd_embedded_jvm_heapsize false
Cgroup CPU Shares Number of CPU shares to assign to this role. The greater the number of shares, the larger the share of the host's CPUs that will be given to this role when the host experiences CPU contention. Must be between 2 and 262144. Defaults to 1024 for processes not managed by Cloudera Manager. cpu.shares 1024 rm_cpu_shares true
Cgroup I/O Weight Weight for the read I/O requests issued by this role. The greater the weight, the higher the priority of the requests when the host experiences I/O contention. Must be between 100 and 1000. Defaults to 1000 for processes not managed by Cloudera Manager. blkio.weight 500 rm_io_weight true
Cgroup Memory Hard Limit Hard memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit. memory.limit_in_bytes -1 MiB rm_memory_hard_limit true
Cgroup Memory Soft Limit Soft memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process if and only if the host is facing memory pressure. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit. memory.soft_limit_in_bytes -1 MiB rm_memory_soft_limit true

Security

Display Name Description Related Name Default Value API Name Required
Catalog Server Webserver TLS/SSL Server Certificate File (PEM Format) The path to the TLS/SSL file containing the server certificate key used for TLS/SSL. Used when Catalog Server Webserver is acting as a TLS/SSL server. The certificate file must be in PEM format. webserver_certificate_file webserver_certificate_file false
Catalog Server Web Server User Password Password for Catalog Server web server authentication. webserver_htpassword_password webserver_htpassword_password false
Catalog Server Web Server Username Username for Catalog Server web server authentication. webserver_htpassword_user webserver_htpassword_user false
Catalog Server Webserver TLS/SSL Server Private Key File (PEM Format) The path to the TLS/SSL file containing the private key used for TLS/SSL. Used when Catalog Server Webserver is acting as a TLS/SSL server. The certificate file must be in PEM format. webserver_private_key_file webserver_private_key_file false
Catalog Server Webserver TLS/SSL Private Key Password The password for the private key in the Catalog Server Webserver TLS/SSL Server Certificate and Private Key file. If left blank, the private key is not protected by a password. webserver_private_key_password_cmd webserver_private_key_password_cmd false

Stacks Collection

Display Name Description Related Name Default Value API Name Required
Stacks Collection Data Retention The amount of stacks data that is retained. After the retention limit is reached, the oldest data is deleted. stacks_collection_data_retention 100 MiB stacks_collection_data_retention false
Stacks Collection Directory The directory in which stacks logs are placed. If not set, stacks are logged into a stacks subdirectory of the role's log directory. stacks_collection_directory stacks_collection_directory false
Stacks Collection Enabled Whether or not periodic stacks collection is enabled. stacks_collection_enabled false stacks_collection_enabled true
Stacks Collection Frequency The frequency with which stacks are collected. stacks_collection_frequency 5.0 second(s) stacks_collection_frequency false
Stacks Collection Method The method used to collect stacks. The jstack option involves periodically running the jstack command against the role's daemon process. The servlet method is available for those roles that have an HTTP server endpoint exposing the current stacks traces of all threads. When the servlet method is selected, that HTTP endpoint is periodically scraped. stacks_collection_method jstack stacks_collection_method false

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Catalog Server Service Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Service Port parameter. false role_config_suppression_catalog_service_port true
Suppress Parameter Validation: Catalog Server Command Line Argument Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Command Line Argument Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_catalogd_cmd_args_safety_valve true
Suppress Parameter Validation: Impala Catalog Server Advanced Configuration Snippet (Safety Valve) for core-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Catalog Server Advanced Configuration Snippet (Safety Valve) for core-site.xml parameter. false role_config_suppression_catalogd_core_site_safety_valve true
Suppress Parameter Validation: Catalog Server HBase Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server HBase Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_catalogd_hbase_conf_safety_valve true
Suppress Parameter Validation: Catalog Server HDFS Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server HDFS Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_catalogd_hdfs_site_conf_safety_valve true
Suppress Parameter Validation: Catalog Server Hive Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Hive Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_catalogd_hive_conf_safety_valve true
Suppress Parameter Validation: Java Configuration Options for Catalog Server Whether to suppress configuration warnings produced by the built-in parameter validation for the Java Configuration Options for Catalog Server parameter. false role_config_suppression_catalogd_java_opts true
Suppress Parameter Validation: Impala Catalog Server Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Catalog Server Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_catalogserver_role_env_safety_valve true
Suppress Parameter Validation: Catalog Server HTTP Server Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server HTTP Server Port parameter. false role_config_suppression_catalogserver_webserver_port true
Suppress Configuration Validator: CDH Version Validator Whether to suppress configuration warnings produced by the CDH Version Validator configuration validator. false role_config_suppression_cdh_version_validator true
Suppress Parameter Validation: Catalog Server Core Dump Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Core Dump Directory parameter. false role_config_suppression_core_dump_dir true
Suppress Parameter Validation: Catalog Server Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Log Directory parameter. false role_config_suppression_log_dir true
Suppress Parameter Validation: Heap Dump Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Heap Dump Directory parameter. false role_config_suppression_oom_heap_dump_dir true
Suppress Parameter Validation: Role Triggers Whether to suppress configuration warnings produced by the built-in parameter validation for the Role Triggers parameter. false role_config_suppression_role_triggers true
Suppress Parameter Validation: Stacks Collection Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Stacks Collection Directory parameter. false role_config_suppression_stacks_collection_directory true
Suppress Parameter Validation: Catalog Server Webserver TLS/SSL Server Certificate File (PEM Format) Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Webserver TLS/SSL Server Certificate File (PEM Format) parameter. false role_config_suppression_webserver_certificate_file true
Suppress Parameter Validation: Catalog Server Web Server User Password Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Web Server User Password parameter. false role_config_suppression_webserver_htpassword_password true
Suppress Parameter Validation: Catalog Server Web Server Username Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Web Server Username parameter. false role_config_suppression_webserver_htpassword_user true
Suppress Parameter Validation: Catalog Server Webserver TLS/SSL Server Private Key File (PEM Format) Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Webserver TLS/SSL Server Private Key File (PEM Format) parameter. false role_config_suppression_webserver_private_key_file true
Suppress Parameter Validation: Catalog Server Webserver TLS/SSL Private Key Password Whether to suppress configuration warnings produced by the built-in parameter validation for the Catalog Server Webserver TLS/SSL Private Key Password parameter. false role_config_suppression_webserver_private_key_password_cmd true
Suppress Health Test: Audit Pipeline Test Whether to suppress the results of the Audit Pipeline Test heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_audit_health true
Suppress Health Test: StateStore Connectivity Whether to suppress the results of the StateStore Connectivity heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_connectivity true
Suppress Health Test: File Descriptors Whether to suppress the results of the File Descriptors heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_file_descriptor true
Suppress Health Test: Heap Dump Directory Free Space Whether to suppress the results of the Heap Dump Directory Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_heap_dump_directory_free_space true
Suppress Health Test: Host Health Whether to suppress the results of the Host Health heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_host_health true
Suppress Health Test: Log Directory Free Space Whether to suppress the results of the Log Directory Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_log_directory_free_space true
Suppress Health Test: Resident Set Size Whether to suppress the results of the Resident Set Size heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_memory_rss_health true
Suppress Health Test: Process Status Whether to suppress the results of the Process Status heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_scm_health true
Suppress Health Test: Swap Memory Usage Whether to suppress the results of the Swap Memory Usage heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_swap_memory_usage true
Suppress Health Test: Unexpected Exits Whether to suppress the results of the Unexpected Exits heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_unexpected_exits true
Suppress Health Test: Web Server Status Whether to suppress the results of the Web Server Status heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_catalogserver_web_metric_collection true

Impala Daemon

Categories:

Advanced

Display Name Description Related Name Default Value API Name Required
Abort on Config Error Abort Impala startup if there are improper configs or running on unsupported hardware. abort_on_config_error true abort_on_config_error false
Impala Daemon Core Dump Directory Directory where an Impala Daemon core dump is placed. core_dump_dir /var/log/impalad core_dump_dir false
Impala Daemon Hive Metastore Connection Timeout Timeout for requests to the Hive Metastore Server from Impala. Consider increasing this if you have tables with a lot of metadata and see timeout errors. hive.metastore.client.socket.timeout 1 hour(s) hive_metastore_timeout false
Impala Daemon HDFS Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into hdfs-site.xml for this role only. impala_hdfs_site_conf_safety_valve false
Impala Daemon Hive Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into hive-site.xml for this role only. impala_hive_conf_safety_valve false
Impala Daemon Llama Site Advanced Configuration Snippet (Safety Valve) An XML snippet to append to llama-site.xml for Impala Daemons. This configuration only has effect on Impala versions 1.3 or greater. impala_llama_site_conf_safety_valve false
Impala Daemon Command Line Argument Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be added (verbatim) to Impala Daemon command-line flags. Key names should begin with a hyphen(-). For example: -log_filename=foo.log impalad_cmd_args_safety_valve false
Impala Daemon Advanced Configuration Snippet (Safety Valve) for core-site.xml For advanced use only. A string to be inserted into core-site.xml for this role only. impalad_core_site_safety_valve false
Impala Daemon Fair Scheduler Advanced Configuration Snippet (Safety Valve) An XML string to use verbatim for the contents of fair-scheduler.xml for Impala Daemons. This configuration only has effect on Impala versions 1.3 or greater. impalad_fair_scheduler_safety_valve false
Impala Daemon HBase Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into hbase-site.xml for this role only. impalad_hbase_conf_safety_valve false
Result Cache Maximum Size Maximum number of query results a client may request to be cached on a per-query basis to support restarting fetches. This option guards against unreasonably large result caches requested by clients. Requests exceeding this maximum will be rejected. max_result_cache_size 100000 impalad_result_cache_max_size false
Impala Daemon Environment Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be inserted into a role's environment. Applies to configurations of this role except client configuration. IMPALAD_role_env_safety_valve false
Llama Maximum Request Attempts Maximum number of times a request to reserve, expand, or release resources is attempted until the request is cancelled. llama_max_request_attempts 5 llama_max_request_attempts false
Llama Registration Timeout Seconds Maximum number of seconds that Impala attempts to register or re-register with Llama. If registration is unsuccessful, Impala cancels the action with an error, which could result in an impalad startup failure or a cancelled query. A setting of -1 seconds means try indefinitely. llama_registration_timeout_secs 30 second(s) llama_registration_timeout_secs false
Llama Registration Wait Seconds Number of seconds to wait between attempts during Llama registration. llama_registration_wait_secs 3 second(s) llama_registration_wait_secs false
Impala Daemon Logging Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into log4j.properties for this role only. log4j_safety_valve false
Automatically Restart Process When set, this role's process is automatically (and transparently) restarted in the event of an unexpected failure. true process_auto_restart true
Enable Metric Collection Cloudera Manager agent monitors each service and each of its role by publishing metrics to the Cloudera Manager Service Monitor. Setting it to false will stop Cloudera Manager agent from publishing any metric for corresponding service/roles. This is usually helpful for services that generate large amount of metrics which Service Monitor is not able to process. true process_should_monitor true

Logs

Display Name Description Related Name Default Value API Name Required
Impala Daemon Audit Log Directory The directory in which Impala daemon audit event log files are written. If "Impala Audit Event Generation" property is enabled, Impala will generate its audit logs in this directory. audit_event_log_dir /var/log/impalad/audit audit_event_log_dir true
Enable Impala Audit Event Generation Enables audit event generation by Impala daemons. The audit log file will be placed in the directory specified by 'Impala Daemon Audit Log Directory' parameter. enable_audit_event_log false enable_audit_event_log false
Enable Impala Lineage Generation Enables lineage generation by Impala daemons. The lineage log file is placed in the directory specified by the 'Impala Daemon Lineage Log Directory' parameter. enable_lineage_log true enable_lineage_log false
Impala Daemon Lineage Log Directory The directory in which Impala daemon lineage log files are written. If "Impala Lineage Generation" property is enabled, Impala generates its lineage logs in this directory. lineage_event_log_dir /var/log/impalad/lineage lineage_event_log_dir true
Impala Daemon Log Directory Directory where Impala Daemon will place its log files. log_dir /var/log/impalad log_dir false
Impala Daemon Logging Threshold The minimum log level for Impala Daemon logs INFO log_threshold false
Impala Daemon Verbose Log Level Verbose logging level for the GLog logger. These messages are always logged at 'INFO' log level, so this setting has no effect if Logging Threshold is set to 'WARN' or above. GLOG_v 1 log_verbose_level false
Impala Daemon Log Buffer Level Buffer log messages logged at this level or lower (-1 means don't buffer; 0 means buffer INFO only; 1 means buffer WARNING only, ...) logbuflevel 0 logbuflevel false
Impala Daemon Maximum Audit Log File Size The maximum size (in queries) of the Impala Daemon audit event log file before a new one is created. max_audit_event_log_file_size 5000 line(s) max_audit_event_log_file_size false
Impala Daemon Maximum Lineage Log File Size The maximum size (in entries) of the Impala daemon lineage log file before a new one is created. max_lineage_log_file_size 5000 line(s) max_lineage_log_file_size false
Impala Maximum Log Files The number of log files that are kept for each severity level before all older log files are removed. The number has to be greater than 1 to keep at least the current log file open. If set to 0, all log files are retained and log rotation is effectively disabled. max_log_files 10 max_log_files false
Impala Daemon Max Log Size The maximum size, in megabytes, per log file for Impala Daemon logs. Typically used by log4j or logback. 200 MiB max_log_size false

Monitoring

Display Name Description Related Name Default Value API Name Required
Enable Health Alerts for this Role When set, Cloudera Manager will send alerts when the health of this role reaches the threshold specified by the EventServer setting eventserver_health_events_alert_threshold true enable_alerts false
Enable Configuration Change Alerts When set, Cloudera Manager will send alerts when this entity's configuration changes. false enable_config_alerts false
Query Monitoring Timeout The timeout used by the Cloudera Manager Agent's query monitor when communicating with the Impala Daemon web server, specified in seconds. 5.0 second(s) executing_queries_timeout_seconds false
Heap Dump Directory Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Warning: 10 GiB, Critical: 5 GiB heap_dump_directory_free_space_absolute_thresholds false
Heap Dump Directory Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Heap Dump Directory Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never heap_dump_directory_free_space_percentage_thresholds false
Query Monitoring Failures Thresholds The health test thresholds for failures encountered when monitoring queries within a recent period specified by the impala_query_monitoring_failure_window configuration for the role. Warning: Never, Critical: Any impala_query_monitoring_failure_thresholds false
Monitoring Period For Query Monitoring Failures The period to review when computing query monitoring failures. 5 minute(s) impala_query_monitoring_failure_window false
Impala Daemon Query Collection Status Health Check Enables the health check that determines if query collection for the Impala Daemon is successful. true impala_query_monitoring_status_check_enabled false
Impala Daemon Connectivity Health Test Enables the health test that verifies the Impala Daemon is connected to the StateStore. true impalad_connectivity_health_enabled false
Impala Daemon Connectivity Tolerance at Startup The amount of time to wait for the Impala Daemon to fully start up and connect to the StateStore before enforcing the connectivity check. 3 minute(s) impalad_connectivity_tolerance false
File Descriptor Monitoring Thresholds The health test thresholds of the number of file descriptors used. Specified as a percentage of file descriptor limit. Warning: 50.0 %, Critical: 70.0 % impalad_fd_thresholds false
Impala Daemon Concurrent Client Connections Monitoring Percentage Thresholds The health check thresholds for monitoring of the number of concurrent client connections to Impala Daemon. Specified as a percentage of the maximum client connections parameter. Warning: 80.0 %, Critical: 95.0 % impalad_frontend_connections_thresholds false
Impala Daemon Host Health Test When computing the overall Impala Daemon health, consider the host's health. true impalad_host_health_enabled false
Pause Duration Thresholds The health test thresholds for the weighted average extra time the pause monitor spent paused. Specified as a percentage of elapsed wall clock time. Warning: 30.0, Critical: 60.0 impalad_pause_duration_thresholds false
Pause Duration Monitoring Period The period to review when computing the moving average of extra time the pause monitor spent paused. 5 minute(s) impalad_pause_duration_window false
Impala Daemon Ready Status Health Check Enables the health check that determines if the Impala daemon is ready to process queries. true impalad_ready_status_check_enabled false
Impala Daemon Ready Status Startup Tolerance The amount of time at Impala Daemon startup allowed for the Impala Daemon to start accepting new queries for processing. 3 minute(s) impalad_ready_status_check_startup_tolerance false
Impala Daemon Process Health Test Enables the health test that the Impala Daemon's process state is consistent with the role configuration true impalad_scm_health_enabled false
Impala Daemon Scratch Directories Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's Impala Daemon Scratch Directories. Warning: 10 GiB, Critical: 5 GiB impalad_scratch_directories_free_space_absolute_thresholds false
Impala Daemon Scratch Directories Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's Impala Daemon Scratch Directories. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Impala Daemon Scratch Directories Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never impalad_scratch_directories_free_space_percentage_thresholds false
Web Metric Collection Enables the health test that the Cloudera Manager Agent can successfully contact and gather metrics from the web server. true impalad_web_metric_collection_enabled false
Web Metric Collection Duration The health test thresholds on the duration of the metrics request to the web server. Warning: 10 second(s), Critical: Never impalad_web_metric_collection_thresholds false
Log Directory Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Warning: 10 GiB, Critical: 5 GiB log_directory_free_space_absolute_thresholds false
Log Directory Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Log Directory Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never log_directory_free_space_percentage_thresholds false
Navigator Audit Failure Thresholds The health test thresholds for failures encountered when monitoring audits within a recent period specified by the mgmt_navigator_failure_window configuration for the role. The value that can be specified for this threshold is the number of bytes of audits data that is left to be sent to audit server. mgmt.navigator.failure.thresholds Warning: Never, Critical: Any mgmt_navigator_failure_thresholds false
Monitoring Period For Audit Failures The period to review when checking if audits are blocked and not getting processed. mgmt.navigator.failure.window 20 minute(s) mgmt_navigator_failure_window false
Navigator Audit Pipeline Health Check Enable test of audit events processing pipeline. This will test if audit events are not getting processed by Audit Server for a role that generates audit. mgmt.navigator.status.check.enabled true mgmt_navigator_status_check_enabled false
Resident Set Size Thresholds The health test thresholds on the resident size of the process. Warning: Never, Critical: Never process_resident_set_size_thresholds false
Process Swap Memory Thresholds The health test thresholds on the swap memory usage of the process. This takes precedence over the host level threshold. Warning: Any, Critical: Any process_swap_memory_thresholds false
Query Monitoring Period The polling period of the Impala query monitor in the Cloudera Manager Agent, specified in seconds. If set to zero, query monitoring is disabled. 1.0 second(s) query_monitoring_period_seconds false
Role Triggers The configured triggers for this role. This is a JSON-formatted list of triggers. These triggers are evaluated as part as the health system. Every trigger expression is parsed, and if the trigger condition is met, the list of actions provided in the trigger expression is executed. Each trigger has the following fields:
  • triggerName (mandatory) - The name of the trigger. This value must be unique for the specific role.
  • triggerExpression (mandatory) - A tsquery expression representing the trigger.
  • streamThreshold (optional) - The maximum number of streams that can satisfy a condition of a trigger before the condition fires. By default set to 0, and any stream returned causes the condition to fire.
  • enabled (optional) - By default set to 'true'. If set to 'false', the trigger is not evaluated.
  • expressionEditorConfig (optional) - Metadata for the trigger editor. If present, the trigger should only be edited from the Edit Trigger page; editing the trigger here can lead to inconsistencies.
For example, the following JSON formatted trigger configured for a DataNode fires if the DataNode has more than 1500 file descriptors opened:[{"triggerName": "sample-trigger", "triggerExpression": "IF (SELECT fd_open WHERE roleName=$ROLENAME and last(fd_open) > 1500) DO health:bad", "streamThreshold": 0, "enabled": "true"}]See the trigger rules documentation for more details on how to write triggers using tsquery.The JSON format is evolving and may change and, as a result, backward compatibility is not guaranteed between releases.		 [] role_triggers true
Unexpected Exits Thresholds The health test thresholds for unexpected exits encountered within a recent period specified by the unexpected_exits_window configuration for the role. Warning: Never, Critical: Any unexpected_exits_thresholds false
Unexpected Exits Monitoring Period The period to review when computing unexpected exits. 5 minute(s) unexpected_exits_window false

Other

Display Name Description Related Name Default Value API Name Required
Impala Daemon Query Options Advanced Configuration Snippet (Safety Valve) A list of key-value pairs of additional query options to pass to the Impala Daemon command line, separated by ','. default_query_options default_query_options false
Impala Daemons Load Balancer Address of the load balancer used for Impala daemons. Should be specified in host:port format. If this is specified and Kerberos is enabled, Cloudera Manager adds a principal for 'impala/load_balancer_host@realm' to the keytab for all Impala daemons. impalad_load_balancer false
Local UDF Library Dir User-defined function (UDF) libraries are copied from HDFS into this local directory. local_library_dir /var/lib/impala/udfs local_library_dir false
Impala Daemon Scratch Directories Directories where Impala Daemon will write data such as spilling information to disk to free up memory. This can potentially be large amounts of data. scratch_dirs scratch_dirs false

Performance

Display Name Description Related Name Default Value API Name Required
Maximum Process File Descriptors If configured, overrides the process soft and hard rlimits (also called ulimits) for file descriptors to the configured value. rlimit_fds false

Ports and Addresses

Display Name Description Related Name Default Value API Name Required
Impala Daemon Backend Port Port on which thrift-based ImpalaInternalService is exported. be_port 22000 be_port false
Impala Daemon Beeswax Port Port on which Beeswax client requests are served by Impala Daemons. beeswax_port 21000 beeswax_port false
Impala Daemon HiveServer2 Port Port on which HiveServer2 client requests are served by Impala Daemons. hs2_port 21050 hs2_port false
Enable Impala Daemon Web Server Enable or disable the Impala Daemon web server. This web server contains useful information about Impala Daemon. enable_webserver true impalad_enable_webserver false
Impala Daemon HTTP Server Port Port where Impala debug web server runs. webserver_port 25000 impalad_webserver_port false
Llama Callback Port Port where Llama notification callback should be started llama_callback_port 28000 llama_callback_port false
StateStoreSubscriber Service Port Port where StateStoreSubscriberService is running. state_store_subscriber_port 23000 state_store_subscriber_port false

Resource Management

Display Name Description Related Name Default Value API Name Required
Impala Daemon Memory Limit Memory limit for Impala Daemon, enforced by the daemon itself. This limit does not include memory consumed by the daemon's embedded JVM. The Impala Daemon uses up to this amount of memory for query processing, cached data, network buffers, background operations, etc. If exceeded, queries running on the Impala Daemon will be killed until the Impala Daemon is under the memory limit. mem_limit impalad_memory_limit false
Cgroup CPU Shares Number of CPU shares to assign to this role. The greater the number of shares, the larger the share of the host's CPUs that will be given to this role when the host experiences CPU contention. Must be between 2 and 262144. Defaults to 1024 for processes not managed by Cloudera Manager. cpu.shares 1024 rm_cpu_shares true
Cgroup I/O Weight Weight for the read I/O requests issued by this role. The greater the weight, the higher the priority of the requests when the host experiences I/O contention. Must be between 100 and 1000. Defaults to 1000 for processes not managed by Cloudera Manager. blkio.weight 500 rm_io_weight true
Cgroup Memory Hard Limit Hard memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit. memory.limit_in_bytes -1 MiB rm_memory_hard_limit true
Cgroup Memory Soft Limit Soft memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process if and only if the host is facing memory pressure. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit. memory.soft_limit_in_bytes -1 MiB rm_memory_soft_limit true

Security

Display Name Description Related Name Default Value API Name Required
Disk Spill Encryption Encrypt and verify the integrity of all data spilled to disk as part of a query. This feature is only supported for Impala 2.0 and higher and CDH 5.2 and higher (which includes Impala 2.0). disk_spill_encryption false disk_spill_encryption false
LDAP Server CA Certificate The location on disk of the certificate, in .pem format, used to confirm the authenticity of the LDAP server certificate. This is the Certificate Authority (CA) certificate, and it was used to sign the LDAP server certificate. If not set, all certificates are trusted, which means that an attacker could potentially intercept otherwise encrypted usernames and passwords. ldap_ca_certificate impalad_ldap_ca_certificate false
Impala Daemon Webserver TLS/SSL Server Certificate File (PEM Format) The path to the TLS/SSL file containing the server certificate key used for TLS/SSL. Used when Impala Daemon Webserver is acting as a TLS/SSL server. The certificate file must be in PEM format. webserver_certificate_file webserver_certificate_file false
Impala Daemon Web Server User Password Password for Impala Daemon webserver authentication. webserver_htpassword_password webserver_htpassword_password false
Impala Daemon Web Server Username Username for Impala Daemon webserver authentication. webserver_htpassword_user webserver_htpassword_user false
Impala Daemon Webserver TLS/SSL Server Private Key File (PEM Format) The path to the TLS/SSL file containing the private key used for TLS/SSL. Used when Impala Daemon Webserver is acting as a TLS/SSL server. The certificate file must be in PEM format. webserver_private_key_file webserver_private_key_file false
Impala Daemon Webserver TLS/SSL Private Key Password The password for the private key in the Impala Daemon Webserver TLS/SSL Server Certificate and Private Key file. If left blank, the private key is not protected by a password. webserver_private_key_password_cmd webserver_private_key_password_cmd false

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Impala Daemon Audit Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Audit Log Directory parameter. false role_config_suppression_audit_event_log_dir true
Suppress Parameter Validation: Impala Daemon Backend Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Backend Port parameter. false role_config_suppression_be_port true
Suppress Parameter Validation: Impala Daemon Beeswax Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Beeswax Port parameter. false role_config_suppression_beeswax_port true
Suppress Configuration Validator: CDH Version Validator Whether to suppress configuration warnings produced by the CDH Version Validator configuration validator. false role_config_suppression_cdh_version_validator true
Suppress Parameter Validation: Impala Daemon Core Dump Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Core Dump Directory parameter. false role_config_suppression_core_dump_dir true
Suppress Parameter Validation: Impala Daemon Query Options Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Query Options Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_default_query_options true
Suppress Parameter Validation: Impala Daemon HiveServer2 Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon HiveServer2 Port parameter. false role_config_suppression_hs2_port true
Suppress Configuration Validator: Impala Audit Enabled Validator Whether to suppress configuration warnings produced by the Impala Audit Enabled Validator configuration validator. false role_config_suppression_impala_audit_enabled_validator true
Suppress Parameter Validation: Impala Daemon HDFS Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon HDFS Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_impala_hdfs_site_conf_safety_valve true
Suppress Parameter Validation: Impala Daemon Hive Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Hive Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_impala_hive_conf_safety_valve true
Suppress Configuration Validator: Impala Lineage Enabled Validator Whether to suppress configuration warnings produced by the Impala Lineage Enabled Validator configuration validator. false role_config_suppression_impala_lineage_enabled_validator true
Suppress Parameter Validation: Impala Daemon Llama Site Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Llama Site Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_impala_llama_site_conf_safety_valve true
Suppress Parameter Validation: Impala Daemon Command Line Argument Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Command Line Argument Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_impalad_cmd_args_safety_valve true
Suppress Configuration Validator: Impala Daemon Command Line Arguments Safety Valve Validator Whether to suppress configuration warnings produced by the Impala Daemon Command Line Arguments Safety Valve Validator configuration validator. false role_config_suppression_impalad_cmd_args_safety_valve_validator true
Suppress Parameter Validation: Impala Daemon Advanced Configuration Snippet (Safety Valve) for core-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Advanced Configuration Snippet (Safety Valve) for core-site.xml parameter. false role_config_suppression_impalad_core_site_safety_valve true
Suppress Parameter Validation: Impala Daemon Fair Scheduler Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Fair Scheduler Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_impalad_fair_scheduler_safety_valve true
Suppress Parameter Validation: Impala Daemon HBase Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon HBase Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_impalad_hbase_conf_safety_valve true
Suppress Parameter Validation: LDAP Server CA Certificate Whether to suppress configuration warnings produced by the built-in parameter validation for the LDAP Server CA Certificate parameter. false role_config_suppression_impalad_ldap_ca_certificate true
Suppress Parameter Validation: Impala Daemons Load Balancer Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemons Load Balancer parameter. false role_config_suppression_impalad_load_balancer true
Suppress Parameter Validation: Impala Daemon Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_impalad_role_env_safety_valve true
Suppress Parameter Validation: Impala Daemon HTTP Server Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon HTTP Server Port parameter. false role_config_suppression_impalad_webserver_port true
Suppress Parameter Validation: Impala Daemon Lineage Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Lineage Log Directory parameter. false role_config_suppression_lineage_event_log_dir true
Suppress Parameter Validation: Llama Callback Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Llama Callback Port parameter. false role_config_suppression_llama_callback_port true
Suppress Parameter Validation: Local UDF Library Dir Whether to suppress configuration warnings produced by the built-in parameter validation for the Local UDF Library Dir parameter. false role_config_suppression_local_library_dir true
Suppress Parameter Validation: Impala Daemon Logging Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Logging Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_log4j_safety_valve true
Suppress Parameter Validation: Impala Daemon Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Log Directory parameter. false role_config_suppression_log_dir true
Suppress Parameter Validation: Role Triggers Whether to suppress configuration warnings produced by the built-in parameter validation for the Role Triggers parameter. false role_config_suppression_role_triggers true
Suppress Parameter Validation: Impala Daemon Scratch Directories Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Scratch Directories parameter. false role_config_suppression_scratch_dirs true
Suppress Parameter Validation: StateStoreSubscriber Service Port Whether to suppress configuration warnings produced by the built-in parameter validation for the StateStoreSubscriber Service Port parameter. false role_config_suppression_state_store_subscriber_port true
Suppress Parameter Validation: Impala Daemon Webserver TLS/SSL Server Certificate File (PEM Format) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Webserver TLS/SSL Server Certificate File (PEM Format) parameter. false role_config_suppression_webserver_certificate_file true
Suppress Parameter Validation: Impala Daemon Web Server User Password Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Web Server User Password parameter. false role_config_suppression_webserver_htpassword_password true
Suppress Parameter Validation: Impala Daemon Web Server Username Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Web Server Username parameter. false role_config_suppression_webserver_htpassword_user true
Suppress Parameter Validation: Impala Daemon Webserver TLS/SSL Server Private Key File (PEM Format) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Webserver TLS/SSL Server Private Key File (PEM Format) parameter. false role_config_suppression_webserver_private_key_file true
Suppress Parameter Validation: Impala Daemon Webserver TLS/SSL Private Key Password Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Daemon Webserver TLS/SSL Private Key Password parameter. false role_config_suppression_webserver_private_key_password_cmd true
Suppress Health Test: Audit Pipeline Test Whether to suppress the results of the Audit Pipeline Test heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_audit_health true
Suppress Health Test: StateStore Connectivity Whether to suppress the results of the StateStore Connectivity heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_connectivity true
Suppress Health Test: File Descriptors Whether to suppress the results of the File Descriptors heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_file_descriptor true
Suppress Health Test: Impala Concurrent Client Connections Whether to suppress the results of the Impala Concurrent Client Connections heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_frontend_connections true
Suppress Health Test: Heap Dump Directory Free Space Whether to suppress the results of the Heap Dump Directory Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_heap_dump_directory_free_space true
Suppress Health Test: Host Health Whether to suppress the results of the Host Health heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_host_health true
Suppress Health Test: Log Directory Free Space Whether to suppress the results of the Log Directory Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_log_directory_free_space true
Suppress Health Test: Resident Set Size Whether to suppress the results of the Resident Set Size heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_memory_rss_health true
Suppress Health Test: Pause Duration Whether to suppress the results of the Pause Duration heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_pause_duration true
Suppress Health Test: Query Monitoring Status Check Whether to suppress the results of the Query Monitoring Status Check heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_query_monitoring_status true
Suppress Health Test: Impala Daemon Ready Check Whether to suppress the results of the Impala Daemon Ready Check heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_ready_status true
Suppress Health Test: Process Status Whether to suppress the results of the Process Status heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_scm_health true
Suppress Health Test: Impala Daemon Scratch Directories Free Space Whether to suppress the results of the Impala Daemon Scratch Directories Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_scratch_directories_free_space true
Suppress Health Test: Swap Memory Usage Whether to suppress the results of the Swap Memory Usage heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_swap_memory_usage true
Suppress Health Test: Unexpected Exits Whether to suppress the results of the Unexpected Exits heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_unexpected_exits true
Suppress Health Test: Web Server Status Whether to suppress the results of the Web Server Status heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_impalad_web_metric_collection true

Impala Llama ApplicationMaster

Categories:

Advanced

Display Name Description Related Name Default Value API Name Required
Enable Resource Caching Whether Llama should cache allocated resources on release. llama.am.cache.enabled true llama_am_cache_enabled false
Resource Caching Idle Timeout Timeout policy for resources being cached. llama.am.cache.eviction.timeout.policy.idle.timeout.ms 30 second(s) llama_am_cache_eviction_timeout_policy_idle_timeout_ms false
Anti-Deadlock Backoff Percentage Percentage of resources that will be backed off by the Impala ApplicationMaster anti-deadlock logic. Random reservations will be backed off until the percentage of backed off resources reaches this percentage. llama.am.gang.anti.deadlock.backoff.percent 30 % llama_am_gang_anti_deadlock_backoff_percent false
Anti-Deadlock Maximum Delay Maximum amount of time the backed off reservations will be in 'backed off' state. The actual amount time is a random value between the minimum and the maximum. llama.am.gang.anti.deadlock.max_delay_ms 30 second(s) llama_am_gang_anti_deadlock_max_delay_ms false
Anti-Deadlock Minimum Delay Minimum amount of time the backed off reservations will be in 'backed off' state. The actual amount time is a random value between the minimum and the maximum. llama.am.gang.anti.deadlock.min_delay_ms 10 second(s) llama_am_gang_anti_deadlock_min_delay_ms false
Anti-Deadlock No Allocation Limit Interval Interval of time without any new allocation that will trigger the Impala ApplicationMaster anti-deadlock logic. llama.am.gang.anti.deadlock.no.allocation.limit.ms 30 second(s) llama_am_gang_anti_deadlock_no_allocation_limit_ms false
Enable Resource Cache Normalization Whether to break resource requests into smaller requests of standard size before the resource cache. The sizes are taken from Yarn settings Container Memory Increment and Container Virtual CPU Cores Increment. llama.am.resource.normalizing.enabled true llama_am_resource_normalizing_enabled false
Maximum Client Notification Retries Maximum number of retries for a client notification. After the maximum number of client notification retries has been reached without success the client is considered lost and all its reservations are released. A successful client notification resets the retries count. llama.am.server.thrift.client.notifier.max.retries 5 llama_am_server_thrift_client_notifier_max_retries false
Client Notification Retry Interval Client notification retry interval, in milliseconds. llama.am.server.thrift.client.notifier.retry.interval.ms 5 second(s) llama_am_server_thrift_client_notifier_retry_interval_ms false
Impala Llama ApplicationMaster Advanced Configuration Snippet (Safety Valve) for llama-site.xml For advanced use only. A string to be inserted into llama-site.xml for this role only. llama_config_valve false
Fair Scheduler XML Advanced Configuration Snippet (Safety Valve) Enter an XML string that will be inserted verbatim into the Fair Scheduler allocations file. Overrides the configuration set using the Pools configuration UI. This configuration only has effect on Impala versions 1.3 or greater. llama_fair_scheduler_safety_valve false
Java Configuration Options for Llama Server These arguments will be passed as part of the Java command line. Commonly, garbage collection flags, PermGen, or extra debugging flags would be passed here. Note: When CM version is 6.3.0 or greater, {{JAVA_GC_ARGS}} will be replaced by JVM Garbage Collection arguments based on the runtime Java JVM version. llama_java_opts false
Impala Llama ApplicationMaster Environment Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be inserted into a role's environment. Applies to configurations of this role except client configuration. LLAMA_role_env_safety_valve false
Impala Llama ApplicationMaster Logging Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into log4j.properties for this role only. log4j_safety_valve false
Heap Dump Directory Path to directory where heap dumps are generated when java.lang.OutOfMemoryError error is thrown. This directory is automatically created if it does not exist. If this directory already exists, role user must have write access to this directory. If this directory is shared among multiple roles, it should have 1777 permissions. The heap dump files are created with 600 permissions and are owned by the role user. The amount of free space in this directory should be greater than the maximum Java Process heap size configured for this role. oom_heap_dump_dir /tmp oom_heap_dump_dir false
Dump Heap When Out of Memory When set, generates heap dump file when java.lang.OutOfMemoryError is thrown. true oom_heap_dump_enabled true
Kill When Out of Memory When set, a SIGKILL signal is sent to the role process when java.lang.OutOfMemoryError is thrown. true oom_sigkill_enabled true
Automatically Restart Process When set, this role's process is automatically (and transparently) restarted in the event of an unexpected failure. true process_auto_restart true
Llama System Group The group that the Llama processes should run as. llama process_groupname true
Enable Metric Collection Cloudera Manager agent monitors each service and each of its role by publishing metrics to the Cloudera Manager Service Monitor. Setting it to false will stop Cloudera Manager agent from publishing any metric for corresponding service/roles. This is usually helpful for services that generate large amount of metrics which Service Monitor is not able to process. true process_should_monitor true
Llama System User The user that the Llama process should run as. llama process_username true

Logs

Display Name Description Related Name Default Value API Name Required
Llama Log Directory Directory where Llama will place its log files. llama_log_dir /var/log/impala-llama llama_log_dir false
Impala Llama ApplicationMaster Logging Threshold The minimum log level for Impala Llama ApplicationMaster logs INFO log_threshold false
Impala Llama ApplicationMaster Maximum Log File Backups The maximum number of rolled log files to keep for Impala Llama ApplicationMaster logs. Typically used by log4j or logback. 10 max_log_backup_index false
Impala Llama ApplicationMaster Max Log Size The maximum size, in megabytes, per log file for Impala Llama ApplicationMaster logs. Typically used by log4j or logback. 200 MiB max_log_size false

Monitoring

Display Name Description Related Name Default Value API Name Required
Enable Health Alerts for this Role When set, Cloudera Manager will send alerts when the health of this role reaches the threshold specified by the EventServer setting eventserver_health_events_alert_threshold true enable_alerts false
Enable Configuration Change Alerts When set, Cloudera Manager will send alerts when this entity's configuration changes. false enable_config_alerts false
Heap Dump Directory Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Warning: 10 GiB, Critical: 5 GiB heap_dump_directory_free_space_absolute_thresholds false
Heap Dump Directory Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Heap Dump Directory Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never heap_dump_directory_free_space_percentage_thresholds false
File Descriptor Monitoring Thresholds The health test thresholds of the number of file descriptors used. Specified as a percentage of file descriptor limit. Warning: 50.0 %, Critical: 70.0 % llama_fd_thresholds false
Impala Llama ApplicationMaster Host Health Test When computing the overall Impala Llama ApplicationMaster health, consider the host's health. true llama_host_health_enabled false
Impala Llama ApplicationMaster Process Health Test Enables the health test that the Impala Llama ApplicationMaster's process state is consistent with the role configuration true llama_scm_health_enabled false
Log Directory Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Warning: 10 GiB, Critical: 5 GiB log_directory_free_space_absolute_thresholds false
Log Directory Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Log Directory Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never log_directory_free_space_percentage_thresholds false
Navigator Audit Failure Thresholds The health test thresholds for failures encountered when monitoring audits within a recent period specified by the mgmt_navigator_failure_window configuration for the role. The value that can be specified for this threshold is the number of bytes of audits data that is left to be sent to audit server. mgmt.navigator.failure.thresholds Warning: Never, Critical: Any mgmt_navigator_failure_thresholds false
Monitoring Period For Audit Failures The period to review when checking if audits are blocked and not getting processed. mgmt.navigator.failure.window 20 minute(s) mgmt_navigator_failure_window false
Navigator Audit Pipeline Health Check Enable test of audit events processing pipeline. This will test if audit events are not getting processed by Audit Server for a role that generates audit. mgmt.navigator.status.check.enabled true mgmt_navigator_status_check_enabled false
Process Swap Memory Thresholds The health test thresholds on the swap memory usage of the process. This takes precedence over the host level threshold. Warning: 200 B, Critical: Never process_swap_memory_thresholds false
Role Triggers The configured triggers for this role. This is a JSON-formatted list of triggers. These triggers are evaluated as part as the health system. Every trigger expression is parsed, and if the trigger condition is met, the list of actions provided in the trigger expression is executed. Each trigger has the following fields:
  • triggerName (mandatory) - The name of the trigger. This value must be unique for the specific role.
  • triggerExpression (mandatory) - A tsquery expression representing the trigger.
  • streamThreshold (optional) - The maximum number of streams that can satisfy a condition of a trigger before the condition fires. By default set to 0, and any stream returned causes the condition to fire.
  • enabled (optional) - By default set to 'true'. If set to 'false', the trigger is not evaluated.
  • expressionEditorConfig (optional) - Metadata for the trigger editor. If present, the trigger should only be edited from the Edit Trigger page; editing the trigger here can lead to inconsistencies.
For example, the following JSON formatted trigger configured for a DataNode fires if the DataNode has more than 1500 file descriptors opened:[{"triggerName": "sample-trigger", "triggerExpression": "IF (SELECT fd_open WHERE roleName=$ROLENAME and last(fd_open) > 1500) DO health:bad", "streamThreshold": 0, "enabled": "true"}]See the trigger rules documentation for more details on how to write triggers using tsquery.The JSON format is evolving and may change and, as a result, backward compatibility is not guaranteed between releases.		 [] role_triggers true
Unexpected Exits Thresholds The health test thresholds for unexpected exits encountered within a recent period specified by the unexpected_exits_window configuration for the role. Warning: Never, Critical: Any unexpected_exits_thresholds false
Unexpected Exits Monitoring Period The period to review when computing unexpected exits. 5 minute(s) unexpected_exits_window false

Other

Display Name Description Related Name Default Value API Name Required
Core Queues Queues Llama ApplicationMaster should connect to at start up. llama.am.core.queues llama_am_core_queues false
Administrative Interface ACLs ACL for Impala ApplicationMaster admins. The ACL is a comma-separated list of user and group names. The user and group list is separated by a blank. For e.g. "alice,bob users,wheel". A special value of "*" means all users are allowed. These take effect only if security is enabled. llama.am.server.thrift.admin.acl * llama_am_server_thrift_admin_acl false
Client ACLs ACL for Impala ApplicationMaster clients. The ACL is a comma-separated list of user and group names. The user and group list is separated by a blank. For e.g. "alice,bob users,wheel". A special value of "*" means all users are allowed. These take effect only if security is enabled. llama.am.server.thrift.client.acl * llama_am_server_thrift_client_acl false

Performance

Display Name Description Related Name Default Value API Name Required
Queue Expiration Age Time in milliseconds after which Llama will discard its AM for a queue that has been empty of reservations. Does not apply to queues specified with the Core Queues property. llama.am.queue.expire.ms 5 minute(s) llama_am_queue_expire_ms false
AM Heartbeat Interval Llama ApplicationMaster heartbeat interval, in milliseconds. On each heartbeat the ApplicationMaster submits new reservations to YARN ResourceManager and gets updates from it. llama.am.server.thrift.client.notifier.heartbeat.ms 5 second(s) llama_am_server_thrift_client_notifier_heartbeat_ms false
Thrift Server Maximum Threads Maximum number of threads used by the Llama ApplicationMaster auxiliary service uses for serving client requests. llama.am.server.thrift.server.max.threads 50 llama_am_server_thrift_server_max_threads false
Thrift Server Minimum Threads Minimum number of threads used by the Llama ApplicationMaster auxiliary service uses for serving client requests. llama.am.server.thrift.server.min.threads 10 llama_am_server_thrift_server_min_threads false
Thrift Transport Timeout Socket time, in milliseconds, used Llama ApplicationMaster auxiliary service for all its server and client Thrift connections. llama.am.server.thrift.transport.timeout.ms 1 minute(s) llama_am_server_thrift_transport_timeout_ms false
Maximum Process File Descriptors If configured, overrides the process soft and hard rlimits (also called ulimits) for file descriptors to the configured value. rlimit_fds false

Ports and Addresses

Display Name Description Related Name Default Value API Name Required
Llama Thrift Admin Port Port on which the Llama ApplicationMaster listens to administrative requests on its administrative Thrift interface. llama.am.server.thrift.admin.address 15002 llama_am_server_thrift_admin_address false
Bind Impala Llama ApplicationMaster to Wildcard Address If enabled, the Impala Llama ApplicationMaster binds to the wildcard address ("0.0.0.0") on all of its ports. false llama_bind_wildcard false
Llama HTTP Port Port on which the Llama ApplicationMaster listens to HTTP requests. llama.am.server.thrift.http.address 15001 llama_http_port false
Llama Thrift Port Port on which the Llama ApplicationMaster serves its Thrift interface. llama.am.server.thrift.address 15000 llama_port false

Resource Management

Display Name Description Related Name Default Value API Name Required
Java Heap Size of Impala Llama ApplicationMaster in Bytes Maximum size in bytes for the Java Process heap memory. Passed to Java -Xmx. 256 MiB llama_java_heapsize false
Cgroup CPU Shares Number of CPU shares to assign to this role. The greater the number of shares, the larger the share of the host's CPUs that will be given to this role when the host experiences CPU contention. Must be between 2 and 262144. Defaults to 1024 for processes not managed by Cloudera Manager. cpu.shares 1024 rm_cpu_shares true
Cgroup I/O Weight Weight for the read I/O requests issued by this role. The greater the weight, the higher the priority of the requests when the host experiences I/O contention. Must be between 100 and 1000. Defaults to 1000 for processes not managed by Cloudera Manager. blkio.weight 500 rm_io_weight true
Cgroup Memory Hard Limit Hard memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit. memory.limit_in_bytes -1 MiB rm_memory_hard_limit true
Cgroup Memory Soft Limit Soft memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process if and only if the host is facing memory pressure. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit. memory.soft_limit_in_bytes -1 MiB rm_memory_soft_limit true

Security

Display Name Description Related Name Default Value API Name Required
Role-Specific Kerberos Principal Kerberos principal used by the Impala Llama ApplicationMaster roles. llama kerberos_role_princ_name true

Stacks Collection

Display Name Description Related Name Default Value API Name Required
Stacks Collection Data Retention The amount of stacks data that is retained. After the retention limit is reached, the oldest data is deleted. stacks_collection_data_retention 100 MiB stacks_collection_data_retention false
Stacks Collection Directory The directory in which stacks logs are placed. If not set, stacks are logged into a stacks subdirectory of the role's log directory. stacks_collection_directory stacks_collection_directory false
Stacks Collection Enabled Whether or not periodic stacks collection is enabled. stacks_collection_enabled false stacks_collection_enabled true
Stacks Collection Frequency The frequency with which stacks are collected. stacks_collection_frequency 5.0 second(s) stacks_collection_frequency false
Stacks Collection Method The method used to collect stacks. The jstack option involves periodically running the jstack command against the role's daemon process. The servlet method is available for those roles that have an HTTP server endpoint exposing the current stacks traces of all threads. When the servlet method is selected, that HTTP endpoint is periodically scraped. stacks_collection_method jstack stacks_collection_method false

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Configuration Validator: CDH Version Validator Whether to suppress configuration warnings produced by the CDH Version Validator configuration validator. false role_config_suppression_cdh_version_validator true
Suppress Parameter Validation: Role-Specific Kerberos Principal Whether to suppress configuration warnings produced by the built-in parameter validation for the Role-Specific Kerberos Principal parameter. false role_config_suppression_kerberos_role_princ_name true
Suppress Parameter Validation: Core Queues Whether to suppress configuration warnings produced by the built-in parameter validation for the Core Queues parameter. false role_config_suppression_llama_am_core_queues true
Suppress Parameter Validation: Administrative Interface ACLs Whether to suppress configuration warnings produced by the built-in parameter validation for the Administrative Interface ACLs parameter. false role_config_suppression_llama_am_server_thrift_admin_acl true
Suppress Parameter Validation: Llama Thrift Admin Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Llama Thrift Admin Port parameter. false role_config_suppression_llama_am_server_thrift_admin_address true
Suppress Parameter Validation: Client ACLs Whether to suppress configuration warnings produced by the built-in parameter validation for the Client ACLs parameter. false role_config_suppression_llama_am_server_thrift_client_acl true
Suppress Parameter Validation: Impala Llama ApplicationMaster Advanced Configuration Snippet (Safety Valve) for llama-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Llama ApplicationMaster Advanced Configuration Snippet (Safety Valve) for llama-site.xml parameter. false role_config_suppression_llama_config_valve true
Suppress Parameter Validation: Fair Scheduler XML Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Fair Scheduler XML Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_llama_fair_scheduler_safety_valve true
Suppress Parameter Validation: Llama HTTP Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Llama HTTP Port parameter. false role_config_suppression_llama_http_port true
Suppress Parameter Validation: Java Configuration Options for Llama Server Whether to suppress configuration warnings produced by the built-in parameter validation for the Java Configuration Options for Llama Server parameter. false role_config_suppression_llama_java_opts true
Suppress Parameter Validation: Llama Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Llama Log Directory parameter. false role_config_suppression_llama_log_dir true
Suppress Parameter Validation: Llama Thrift Port Whether to suppress configuration warnings produced by the built-in parameter validation for the Llama Thrift Port parameter. false role_config_suppression_llama_port true
Suppress Parameter Validation: Impala Llama ApplicationMaster Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Llama ApplicationMaster Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_llama_role_env_safety_valve true
Suppress Parameter Validation: Impala Llama ApplicationMaster Logging Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Llama ApplicationMaster Logging Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_log4j_safety_valve true
Suppress Parameter Validation: Heap Dump Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Heap Dump Directory parameter. false role_config_suppression_oom_heap_dump_dir true
Suppress Parameter Validation: Llama System Group Whether to suppress configuration warnings produced by the built-in parameter validation for the Llama System Group parameter. false role_config_suppression_process_groupname true
Suppress Parameter Validation: Llama System User Whether to suppress configuration warnings produced by the built-in parameter validation for the Llama System User parameter. false role_config_suppression_process_username true
Suppress Parameter Validation: Role Triggers Whether to suppress configuration warnings produced by the built-in parameter validation for the Role Triggers parameter. false role_config_suppression_role_triggers true
Suppress Parameter Validation: Stacks Collection Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Stacks Collection Directory parameter. false role_config_suppression_stacks_collection_directory true
Suppress Health Test: Audit Pipeline Test Whether to suppress the results of the Audit Pipeline Test heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_llama_audit_health true
Suppress Health Test: File Descriptors Whether to suppress the results of the File Descriptors heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_llama_file_descriptor true
Suppress Health Test: Heap Dump Directory Free Space Whether to suppress the results of the Heap Dump Directory Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_llama_heap_dump_directory_free_space true
Suppress Health Test: Host Health Whether to suppress the results of the Host Health heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_llama_host_health true
Suppress Health Test: Log Directory Free Space Whether to suppress the results of the Log Directory Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_llama_log_directory_free_space true
Suppress Health Test: Process Status Whether to suppress the results of the Process Status heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_llama_scm_health true
Suppress Health Test: Swap Memory Usage Whether to suppress the results of the Swap Memory Usage heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_llama_swap_memory_usage true
Suppress Health Test: Unexpected Exits Whether to suppress the results of the Unexpected Exits heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_llama_unexpected_exits true

Impala StateStore

Categories:

Advanced

Display Name Description Related Name Default Value API Name Required
StateStore Core Dump Directory Directory where a StateStore core dump is placed. core_dump_dir /var/log/statestore core_dump_dir false
Automatically Restart Process When set, this role's process is automatically (and transparently) restarted in the event of an unexpected failure. true process_auto_restart true
Enable Metric Collection Cloudera Manager agent monitors each service and each of its role by publishing metrics to the Cloudera Manager Service Monitor. Setting it to false will stop Cloudera Manager agent from publishing any metric for corresponding service/roles. This is usually helpful for services that generate large amount of metrics which Service Monitor is not able to process. true process_should_monitor true
Statestore Command Line Argument Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be added (verbatim) to StateStore command line flags. statestore_cmd_args_safety_valve false
Impala StateStore Environment Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be inserted into a role's environment. Applies to configurations of this role except client configuration. STATESTORE_role_env_safety_valve false

Logs

Display Name Description Related Name Default Value API Name Required
StateStore Log Directory Directory where StateStore will place its log files. log_dir /var/log/statestore log_dir false
Impala StateStore Logging Threshold The minimum log level for Impala StateStore logs INFO log_threshold false
StateStore Verbose Log Level Verbose logging level for the GLog logger. These messages are always logged at 'INFO' log level, so this setting has no effect if Logging Threshold is set to 'WARN' or above. GLOG_v 1 log_verbose_level false
StateStore Log Buffer Level Buffer log messages logged at this level or lower (-1 means don't buffer; 0 means buffer INFO only; 1 means buffer WARNING only, ...) logbuflevel 0 logbuflevel false
StateStore Maximum Log Files The number of log files that are kept for each severity level before all older log files are removed. The number has to be greater than 1 to keep at least the current log file open. If set to 0, all log files are retained and log rotation is effectively disabled. max_log_files 10 max_log_files false
Impala StateStore Max Log Size The maximum size, in megabytes, per log file for Impala StateStore logs. Typically used by log4j or logback. 200 MiB max_log_size false

Monitoring

Display Name Description Related Name Default Value API Name Required
Enable Health Alerts for this Role When set, Cloudera Manager will send alerts when the health of this role reaches the threshold specified by the EventServer setting eventserver_health_events_alert_threshold true enable_alerts false
Enable Configuration Change Alerts When set, Cloudera Manager will send alerts when this entity's configuration changes. false enable_config_alerts false
Heap Dump Directory Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Warning: 10 GiB, Critical: 5 GiB heap_dump_directory_free_space_absolute_thresholds false
Heap Dump Directory Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Heap Dump Directory Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never heap_dump_directory_free_space_percentage_thresholds false
Log Directory Free Space Monitoring Absolute Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Warning: 10 GiB, Critical: 5 GiB log_directory_free_space_absolute_thresholds false
Log Directory Free Space Monitoring Percentage Thresholds The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Log Directory Free Space Monitoring Absolute Thresholds setting is configured. Warning: Never, Critical: Never log_directory_free_space_percentage_thresholds false
Navigator Audit Failure Thresholds The health test thresholds for failures encountered when monitoring audits within a recent period specified by the mgmt_navigator_failure_window configuration for the role. The value that can be specified for this threshold is the number of bytes of audits data that is left to be sent to audit server. mgmt.navigator.failure.thresholds Warning: Never, Critical: Any mgmt_navigator_failure_thresholds false
Monitoring Period For Audit Failures The period to review when checking if audits are blocked and not getting processed. mgmt.navigator.failure.window 20 minute(s) mgmt_navigator_failure_window false
Navigator Audit Pipeline Health Check Enable test of audit events processing pipeline. This will test if audit events are not getting processed by Audit Server for a role that generates audit. mgmt.navigator.status.check.enabled true mgmt_navigator_status_check_enabled false
Resident Set Size Thresholds The health test thresholds on the resident size of the process. Warning: Never, Critical: Never process_resident_set_size_thresholds false
Process Swap Memory Thresholds The health test thresholds on the swap memory usage of the process. This takes precedence over the host level threshold. Warning: 200 B, Critical: Never process_swap_memory_thresholds false
Role Triggers The configured triggers for this role. This is a JSON-formatted list of triggers. These triggers are evaluated as part as the health system. Every trigger expression is parsed, and if the trigger condition is met, the list of actions provided in the trigger expression is executed. Each trigger has the following fields:
  • triggerName (mandatory) - The name of the trigger. This value must be unique for the specific role.
  • triggerExpression (mandatory) - A tsquery expression representing the trigger.
  • streamThreshold (optional) - The maximum number of streams that can satisfy a condition of a trigger before the condition fires. By default set to 0, and any stream returned causes the condition to fire.
  • enabled (optional) - By default set to 'true'. If set to 'false', the trigger is not evaluated.
  • expressionEditorConfig (optional) - Metadata for the trigger editor. If present, the trigger should only be edited from the Edit Trigger page; editing the trigger here can lead to inconsistencies.
For example, the following JSON formatted trigger configured for a DataNode fires if the DataNode has more than 1500 file descriptors opened:[{"triggerName": "sample-trigger", "triggerExpression": "IF (SELECT fd_open WHERE roleName=$ROLENAME and last(fd_open) > 1500) DO health:bad", "streamThreshold": 0, "enabled": "true"}]See the trigger rules documentation for more details on how to write triggers using tsquery.The JSON format is evolving and may change and, as a result, backward compatibility is not guaranteed between releases.		 [] role_triggers true
File Descriptor Monitoring Thresholds The health test thresholds of the number of file descriptors used. Specified as a percentage of file descriptor limit. Warning: 50.0 %, Critical: 70.0 % statestore_fd_thresholds false
Impala StateStore Host Health Test When computing the overall Impala StateStore health, consider the host's health. true statestore_host_health_enabled false
Impala StateStore Process Health Test Enables the health test that the Impala StateStore's process state is consistent with the role configuration true statestore_scm_health_enabled false
Health Test Startup Tolerance The amount of time allowed after this role is started that failures of health tests that rely on communication with this role will be tolerated. 5 minute(s) statestore_startup_tolerance false
Web Metric Collection Enables the health test that the Cloudera Manager Agent can successfully contact and gather metrics from the web server. true statestore_web_metric_collection_enabled false
Web Metric Collection Duration The health test thresholds on the duration of the metrics request to the web server. Warning: 10 second(s), Critical: Never statestore_web_metric_collection_thresholds false
Unexpected Exits Thresholds The health test thresholds for unexpected exits encountered within a recent period specified by the unexpected_exits_window configuration for the role. Warning: Never, Critical: Any unexpected_exits_thresholds false
Unexpected Exits Monitoring Period The period to review when computing unexpected exits. 5 minute(s) unexpected_exits_window false

Other

Display Name Description Related Name Default Value API Name Required
Enable StateStore Web Server Enable/Disable StateStore web server. This web server contains useful information about StateStore daemon. enable_webserver true statestore_enable_webserver false

Performance

Display Name Description Related Name Default Value API Name Required
Maximum Process File Descriptors If configured, overrides the process soft and hard rlimits (also called ulimits) for file descriptors to the configured value. rlimit_fds false
StateStore Worker Threads Number of worker threads for the thread manager underlying the StateStore Thrift server. state_store_num_server_worker_threads 4 state_store_num_server_worker_threads false
Maximum StateStore Pending Tasks Maximum number of tasks allowed to be pending at the thread manager underlying the StateStore Thrift server (0 allows infinitely many pending tasks) state_store_pending_task_count_max 0 state_store_pending_task_count_max false

Ports and Addresses

Display Name Description Related Name Default Value API Name Required
StateStore Service Port Port where StateStoreService is exported. state_store_port 24000 state_store_port false
StateStore HTTP Server Port Port where StateStore debug web server runs. webserver_port 25010 statestore_webserver_port false

Resource Management

Display Name Description Related Name Default Value API Name Required
Cgroup CPU Shares Number of CPU shares to assign to this role. The greater the number of shares, the larger the share of the host's CPUs that will be given to this role when the host experiences CPU contention. Must be between 2 and 262144. Defaults to 1024 for processes not managed by Cloudera Manager. cpu.shares 1024 rm_cpu_shares true
Cgroup I/O Weight Weight for the read I/O requests issued by this role. The greater the weight, the higher the priority of the requests when the host experiences I/O contention. Must be between 100 and 1000. Defaults to 1000 for processes not managed by Cloudera Manager. blkio.weight 500 rm_io_weight true
Cgroup Memory Hard Limit Hard memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit. memory.limit_in_bytes -1 MiB rm_memory_hard_limit true
Cgroup Memory Soft Limit Soft memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process if and only if the host is facing memory pressure. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit. memory.soft_limit_in_bytes -1 MiB rm_memory_soft_limit true

Security

Display Name Description Related Name Default Value API Name Required
StateStore Webserver TLS/SSL Server Certificate File (PEM Format) The path to the TLS/SSL file containing the server certificate key used for TLS/SSL. Used when StateStore Webserver is acting as a TLS/SSL server. The certificate file must be in PEM format. webserver_certificate_file webserver_certificate_file false
Statestore Web Server User Password Password for Statestore webserver authentication. webserver_htpassword_password webserver_htpassword_password false
Statestore Web Server Username Username for Statestore webserver authentication. webserver_htpassword_user webserver_htpassword_user false
StateStore Webserver TLS/SSL Server Private Key File (PEM Format) The path to the TLS/SSL file containing the private key used for TLS/SSL. Used when StateStore Webserver is acting as a TLS/SSL server. The certificate file must be in PEM format. webserver_private_key_file webserver_private_key_file false
StateStore Webserver TLS/SSL Private Key Password The password for the private key in the StateStore Webserver TLS/SSL Server Certificate and Private Key file. If left blank, the private key is not protected by a password. webserver_private_key_password_cmd webserver_private_key_password_cmd false

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Configuration Validator: CDH Version Validator Whether to suppress configuration warnings produced by the CDH Version Validator configuration validator. false role_config_suppression_cdh_version_validator true
Suppress Parameter Validation: StateStore Core Dump Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the StateStore Core Dump Directory parameter. false role_config_suppression_core_dump_dir true
Suppress Parameter Validation: StateStore Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the StateStore Log Directory parameter. false role_config_suppression_log_dir true
Suppress Parameter Validation: Role Triggers Whether to suppress configuration warnings produced by the built-in parameter validation for the Role Triggers parameter. false role_config_suppression_role_triggers true
Suppress Parameter Validation: StateStore Service Port Whether to suppress configuration warnings produced by the built-in parameter validation for the StateStore Service Port parameter. false role_config_suppression_state_store_port true
Suppress Parameter Validation: Statestore Command Line Argument Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Statestore Command Line Argument Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_statestore_cmd_args_safety_valve true
Suppress Parameter Validation: Impala StateStore Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala StateStore Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_statestore_role_env_safety_valve true
Suppress Parameter Validation: StateStore HTTP Server Port Whether to suppress configuration warnings produced by the built-in parameter validation for the StateStore HTTP Server Port parameter. false role_config_suppression_statestore_webserver_port true
Suppress Parameter Validation: StateStore Webserver TLS/SSL Server Certificate File (PEM Format) Whether to suppress configuration warnings produced by the built-in parameter validation for the StateStore Webserver TLS/SSL Server Certificate File (PEM Format) parameter. false role_config_suppression_webserver_certificate_file true
Suppress Parameter Validation: Statestore Web Server User Password Whether to suppress configuration warnings produced by the built-in parameter validation for the Statestore Web Server User Password parameter. false role_config_suppression_webserver_htpassword_password true
Suppress Parameter Validation: Statestore Web Server Username Whether to suppress configuration warnings produced by the built-in parameter validation for the Statestore Web Server Username parameter. false role_config_suppression_webserver_htpassword_user true
Suppress Parameter Validation: StateStore Webserver TLS/SSL Server Private Key File (PEM Format) Whether to suppress configuration warnings produced by the built-in parameter validation for the StateStore Webserver TLS/SSL Server Private Key File (PEM Format) parameter. false role_config_suppression_webserver_private_key_file true
Suppress Parameter Validation: StateStore Webserver TLS/SSL Private Key Password Whether to suppress configuration warnings produced by the built-in parameter validation for the StateStore Webserver TLS/SSL Private Key Password parameter. false role_config_suppression_webserver_private_key_password_cmd true
Suppress Health Test: Audit Pipeline Test Whether to suppress the results of the Audit Pipeline Test heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_audit_health true
Suppress Health Test: File Descriptors Whether to suppress the results of the File Descriptors heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_file_descriptor true
Suppress Health Test: Heap Dump Directory Free Space Whether to suppress the results of the Heap Dump Directory Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_heap_dump_directory_free_space true
Suppress Health Test: Host Health Whether to suppress the results of the Host Health heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_host_health true
Suppress Health Test: Log Directory Free Space Whether to suppress the results of the Log Directory Free Space heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_log_directory_free_space true
Suppress Health Test: Resident Set Size Whether to suppress the results of the Resident Set Size heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_memory_rss_health true
Suppress Health Test: Process Status Whether to suppress the results of the Process Status heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_scm_health true
Suppress Health Test: Swap Memory Usage Whether to suppress the results of the Swap Memory Usage heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_swap_memory_usage true
Suppress Health Test: Unexpected Exits Whether to suppress the results of the Unexpected Exits heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_unexpected_exits true
Suppress Health Test: Web Server Status Whether to suppress the results of the Web Server Status heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false role_health_suppression_statestore_web_metric_collection true

Service-Wide

Categories:

Admission Control

Display Name Description Related Name Default Value API Name Required
Enable Dynamic Resource Pools Use Dynamic Resource Pools to configure Impala admission control or RM for this Impala service. These features are only supported in Impala 1.3 or higher deployments. false admission_control_enabled false
Admission Control Queue Timeout Maximum amount of time (in milliseconds) that a request waits to be admitted before timing out. Must be a positive integer. queue_wait_timeout_ms 1 minute(s) admission_control_queue_timeout false
Single Pool Max Queued Queries Configures the maximum number of queued queries for admission control when using a single pool. -1 or 0 disables queuing, i.e. incoming requests are rejected if they can not be executed immediately. Ignored when Dynamic Resource Pools for Admission Control is enabled. default_pool_max_queued 200 admission_control_single_pool_max_queued false
Single Pool Max Running Queries Configures the maximum number of concurrently running queries for admission control when using a single pool. -1 indicates no limit and 0 indicates all incoming requests will be rejected. Ignored when Dynamic Resource Pools for Admission Control is enabled. default_pool_max_requests 200 admission_control_single_pool_max_requests false
Single Pool Mem Limit Configures the max memory of running queries for admission control when using a single pool. -1 or 0 indicates no limit. Ignored when Dynamic Resource Pools for Admission Control is enabled. default_pool_mem_limit -1 B admission_control_single_pool_mem_limit false
Enable Impala Admission Control Use Impala Admission Control to throttle Impala requests. Unless 'Enable Dynamic Resource Pools' is enabled, Impala uses a single, default pool that is configured using the Single Pool configurations below. These features are only supported in Impala 1.3 or higher deployments. false all_admission_control_enabled false

Advanced

Display Name Description Related Name Default Value API Name Required
Enable Core Dump Used to generate a core dump to get more information about an Impala crash. Unless otherwise configured systemwide using /proc/sys/kernel/core_pattern, the dump is generated in the 'current directory' of the Impala process (usually a subdirectory of the /var/run/cloudera-scm-agent/process directory). The core file can be very large. false enable_core_dump false
Maximum HBase Client Retries Maximum number of HBase client retries for Impala. Used as a maximum for all operations such as fetching of the root region from the root RegionServer, getting a cell's value, and starting a row update. Overrides configuration in the HBase service. hbase.client.retries.number 3 hbase_client_retries_number false
HBase RPC Timeout Timeout in milliseconds for all HBase RPCs made by Impala. Overrides configuration in HBase service. hbase.rpc.timeout 3 second(s) hbase_rpc_timeout false
Impala Command Line Argument Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be added (verbatim) to Impala Daemon command-line flags. Applies to all roles in this service. Key names should begin with a hyphen(-). For example: -log_filename=foo.log impala_cmd_args_safety_valve false
Fair Scheduler Configuration Rules (Deployed) A list specifying the rules to run to determine which Fair Scheduler configuration to use. The value specified here is deployed to all hosts. This configuration has effect only on Impala versions 1.3 or greater. [] impala_schedule_rules false
Fair Scheduler Configuration Rules (Staged) A list specifying the rules to run to determine which Fair Scheduler configuration to use. Typically edited using the Rules configuration UI. This configuration only has effect on Impala versions 1.3 or greater. impala_schedule_rules_draft false
Fair Scheduler Allocations (Deployed) JSON representation of all the configurations that the Fair Scheduler can take across all schedules. This configuration has effect only on Impala versions 1.3 or greater. queues: [ name: root, queues: [ name: default, queues: [], schedulablePropertiesList: [ scheduleName: default ] ], schedulablePropertiesList: [ scheduleName: default ] ], users: [] impala_scheduled_allocations false
Fair Scheduler Allocations (Staged) JSON representation of all the configurations that the Fair Scheduler can take across all schedules. Typically edited using the Pools configuration UI. This configuration only has effect on Impala versions 1.3 or greater. impala_scheduled_allocations_draft false
Impala Service Environment Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be inserted into a role's environment. Applies to configurations of all roles in this service except client configuration. impala_service_env_safety_valve false
Impala Service Advanced Configuration Snippet (Safety Valve) for sentry-site.xml For advanced use only, a string to be inserted into sentry-site.xml. Applies to configurations of all roles in this service except client configuration. impalad_sentry_safety_valve false
Impala Client Advanced Configuration Snippet (Safety Valve) for navigator.client.properties For advanced use only, a string to be inserted into the client configuration for navigator.client.properties. navigator_client_config_safety_valve false
Impala Client Advanced Configuration Snippet (Safety Valve) for navigator.lineage.client.properties For advanced use only, a string to be inserted into the client configuration for navigator.lineage.client.properties. navigator_lineage_client_config_safety_valve false
Impala System Group (except Llama) The group that this Impala's processes should run as (except Llama, which has its own group). impala process_groupname true
Impala System User (except Llama) The user that this Impala's processes should run as (except Llama, which has its own user). impala process_username true
Use Debug Build Use debug build of Impala binaries when starting roles. Useful when performing diagnostic activities to get more information in the stacktrace or core dump. false use_debug_build false

Cloudera Navigator

Display Name Description Related Name Default Value API Name Required
Enable Audit Collection Enable collection of audit events from the service's roles. navigator.audit.enabled true navigator_audit_enabled false
Audit Event Filter Event filters are defined in a JSON object like the following: { "defaultAction" : ("accept", "discard"), "rules" : [ { "action" : ("accept", "discard"), "fields" : [ { "name" : "fieldName", "match" : "regex" } ] } ] } A filter has a default action and a list of rules, in order of precedence. Each rule defines an action, and a list of fields to match against the audit event. A rule is "accepted" if all the listed field entries match the audit event. At that point, the action declared by the rule is taken. If no rules match the event, the default action is taken. Actions default to "accept" if not defined in the JSON object. The following is the list of fields that can be filtered for Impala events:
  • userName: the user performing the action.
  • ipAddress: the IP from where the request originated.
  • operation: the Impala operation being performed.
  • databaseName: the databaseName for the operation.
  • tableName: the tableName for the operation.
 navigator.event.filter navigator_audit_event_filter false
Audit Queue Policy Action to take when the audit event queue is full. Drop the event or shutdown the affected process. navigator.batch.queue_policy DROP navigator_audit_queue_policy false
Audit Event Tracker Configures the rules for event tracking and coalescing. This feature is used to define equivalency between different audit events. When events match, according to a set of configurable parameters, only one entry in the audit list is generated for all the matching events. Tracking works by keeping a reference to events when they first appear, and comparing other incoming events against the "tracked" events according to the rules defined here. Event trackers are defined in a JSON object like the following: { "timeToLive" : [integer], "fields" : [ { "type" : [string], "name" : [string] } ] } Where:
  • timeToLive: maximum amount of time an event will be tracked, in milliseconds. Must be provided. This defines how long, since it's first seen, an event will be tracked. A value of 0 disables tracking.
  • fields: list of fields to compare when matching events against tracked events.
Each field has an evaluator type associated with it. The evaluator defines how the field data is to be compared. The following evaluators are available:
  • value: uses the field value for comparison.
  • userName: treats the field value as a userName, and ignores any host-specific data. This is useful for environment using Kerberos, so that only the principal name and realm are compared.
The following is the list of fields that can be used to compare Impala events:
  • operation: the Impala operation being performed.
  • username: the user performing the action.
  • ipAddress: the IP from where the request originated.
  • allowed: whether the operation was allowed or denied.
  • databaseName: the database affected by the operation.
  • tableName: the table affected by the operation.
  • objectType: the type of object affected by the operation.
  • privilege: the privilege associated with the operation.
 navigator_event_tracker navigator_event_tracker false
Enable Lineage Collection Enable collection of lineage from the service's roles. true navigator_lineage_enabled false

Monitoring

Display Name Description Related Name Default Value API Name Required
Admin Users Query List Visibility Settings Controls which queries admin users can see in the queries list view ALL admin_query_list_settings true
Enable Service Level Health Alerts When set, Cloudera Manager will send alerts when the health of this service reaches the threshold specified by the EventServer setting eventserver_health_events_alert_threshold true enable_alerts false
Enable Configuration Change Alerts When set, Cloudera Manager will send alerts when this entity's configuration changes. false enable_config_alerts false
Impala Catalog Server Role Health Test When computing the overall IMPALA health, consider Impala Catalog Server's health true impala_catalogserver_health_enabled false
Healthy Impala Daemon Monitoring Thresholds The health test thresholds of the overall Impala Daemon health. The check returns "Concerning" health if the percentage of "Healthy" Impala Daemons falls below the warning threshold. The check is unhealthy if the total percentage of "Healthy" and "Concerning" Impala Daemons falls below the critical threshold. Warning: 95.0 %, Critical: 90.0 % impala_impalads_healthy_thresholds false
Healthy Impala Llama ApplicationMaster Monitoring Thresholds The health test thresholds of the overall Impala Llama ApplicationMaster health. The check returns "Concerning" health if the percentage of "Healthy" Impala Llama ApplicationMasters falls below the warning threshold. The check is unhealthy if the total percentage of "Healthy" and "Concerning" Impala Llama ApplicationMasters falls below the critical threshold. Warning: 99.0 %, Critical: 51.0 % impala_llamas_healthy_thresholds false
Impala Query Aggregates Controls the aggregate metrics generated for Impala queries. The structure is a JSON list of the attributes to aggregate and the entities to aggregate to. For example, if the attributeName is 'hdfs_bytes_read' and the aggregationTargets is ['USER'] then the Service Monitor will create the metric 'impala_query_hdfs_bytes_read_rate' and, every ten minutes, will record the total hdfs bytes read for each user across all their Impala queries. By default it will also record the number of queries issues ('num_impala_queries_rate') for both users and pool. For a full list of the supported attributes see the Impala search page. Note that the valid aggregation targets are USER, YARN_POOL, and IMPALA (the service), and that these aggregate metrics can be viewed on both the reports and charts search pages. [ attributeName: hdfs_bytes_read, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: hdfs_bytes_written, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: thread_cpu_time, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: bytes_streamed, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: cm_cpu_milliseconds, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: query_duration, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: admission_wait, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: memory_accrual, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: thread_cpu_time, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] , attributeName: memory_spilled, aggregationTargets: [USER, IMPALA_POOL_USER, IMPALA_POOL, IMPALA, CLUSTER] ] impala_query_aggregates false
Impala StateStore Role Health Test When computing the overall IMPALA health, consider Impala StateStore's health true impala_statestore_health_enabled false
Service Triggers The configured triggers for this service. This is a JSON-formatted list of triggers. These triggers are evaluated as part as the health system. Every trigger expression is parsed, and if the trigger condition is met, the list of actions provided in the trigger expression is executed. Each trigger has the following fields:
  • triggerName (mandatory) - The name of the trigger. This value must be unique for the specific service.
  • triggerExpression (mandatory) - A tsquery expression representing the trigger.
  • streamThreshold (optional) - The maximum number of streams that can satisfy a condition of a trigger before the condition fires. By default set to 0, and any stream returned causes the condition to fire.
  • enabled (optional) - By default set to 'true'. If set to 'false', the trigger is not evaluated.
  • expressionEditorConfig (optional) - Metadata for the trigger editor. If present, the trigger should only be edited from the Edit Trigger page; editing the trigger here can lead to inconsistencies.
For example, the followig JSON formatted trigger fires if there are more than 10 DataNodes with more than 500 file descriptors opened:[{"triggerName": "sample-trigger", "triggerExpression": "IF (SELECT fd_open WHERE roleType = DataNode and last(fd_open) > 500) DO health:bad", "streamThreshold": 10, "enabled": "true"}]See the trigger rules documentation for more details on how to write triggers using tsquery.The JSON format is evolving and may change and, as a result, backward compatibility is not guaranteed between releases.		 [] service_triggers true
Service Monitor Derived Configs Advanced Configuration Snippet (Safety Valve) For advanced use only, a list of derived configuration properties that will be used by the Service Monitor instead of the default ones. smon_derived_configs_safety_valve false
Non-Admin Users Query List Visibility Settings Controls which queries a non-admin user can see in the queries list view ALL user_query_list_settings true

Other

Display Name Description Related Name Default Value API Name Required
Enable Profile Collection Enable collection of profile from the service's roles. true enable_telepub_profile_collection false
HBase Service Name of the HBase service that this Impala service instance depends on hbase_service false
HDFS Service Name of the HDFS service that this Impala service instance depends on hdfs_service true
Hive Service Name of the Hive service that this Impala service instance depends on hive_service true
Sentry Service Name of the Sentry service that this Impala service instance depends on. If selected, Impala uses this Sentry service to look up authorization privileges. Before enabling Sentry, read the requirements and configuration steps in Setting Up The Sentry Service . sentry_service false
YARN Service for Resource Management Name of YARN service to use for resource management integration between Impala and YARN. This service dependency and the existence of a Llama role is required for using said integration. yarn_service false
ZooKeeper Service for Llama HA Name of the ZooKeeper service to use for leader election and fencing when Llama is configured for high availability. This service dependency is required when more than one Llama role is present. zookeeper_service false

Performance

Display Name Description Related Name Default Value API Name Required
Enable HDFS Short-Circuit Read Enable HDFS short-circuit read. This allows a client colocated with the DataNode to read HDFS file blocks directly. This gives a performance boost to distributed clients that are aware of locality. dfs.client.read.shortcircuit true dfs_client_read_shortcircuit false
StateStoreSubscriber Timeout Time in seconds before Impala Daemon or Catalog Server times out with the StateStore. statestore_subscriber_timeout_seconds 30 second(s) statestore_subscriber_timeout false

Policy File-Based Sentry

Display Name Description Related Name Default Value API Name Required
Proxy User Configuration Specifies the set of authorized proxy users (users who can impersonate other users during authorization) and whom they are allowed to impersonate. Input is a semicolon-separated list of key=value pairs of authorized proxy users to the user(s) they can impersonate. These users are specified as a comma separated list of short usernames, or '*' to indicate all users. For example: joe=alice,bob;hue=*;admin=*. Only valid when Sentry is enabled. authorized_proxy_user_config hue=* impala_authorized_proxy_user_config false
Enable Sentry Authorization using Policy Files Use Sentry to enable role-based, fine-grained authorization. This configuration enables Sentry using policy files. To enable Sentry using Sentry service instead, add Sentry service as a dependency to Impala service. Sentry service provides concurrent and secure access to authorization policy metadata and is the recommended option for enabling Sentry. Sentry is supported only on Impala 1.1 or later deployments. impala.sentry.enabled false sentry_enabled false

Security

Display Name Description Related Name Default Value API Name Required
Enable TLS/SSL for Impala Encrypt communication between clients and Impala using Transport Layer Security (TLS) (formerly known as Secure Socket Layer (SSL)). client_services_ssl_enabled false client_services_ssl_enabled false
Enable LDAP Authentication When checked, LDAP-based authentication for users is enabled. enable_ldap_auth false enable_ldap_auth false
Enable LDAP TLS If true, attempts to establish a TLS (Transport Layer Security) connection with an LDAP server that was specified with ldap://. Not required when using an LDAP URL with prefix ldaps://, because that already specifies TLS. This option is also known as "Use StartTLS". ldap_tls false enable_ldap_tls false
LDAP URL The URL of the LDAP server. The URL must be prefixed with ldap:// or ldaps://. The URL can optionally specify a custom port, for example: ldaps://ldap_server.example.com:1636. Note that usernames and passwords will be transmitted in the clear unless either an ldaps:// URL is used, or "Enable LDAP TLS" is turned on (where available). Also note that encryption must be in use between the client and this service for the same reason.For more detail on the LDAP URL format, see RFC 2255 . A space-separated list of URLs can be entered; in this case the URLs will each be tried in turn until one replies. ldap_uri impala_ldap_uri false
Kerberos Principal Kerberos principal short name used by all roles of this service. impala kerberos_princ_name true
Kerberos Re-init Interval Number of minutes between reestablishing our ticket with the Kerberos server. kerberos_reinit_interval 1 hour(s) kerberos_reinit_interval false
LDAP BaseDN This parameter is useful when authenticating against a non-Active Directory server, such as OpenLDAP. When set, this parameter is used to convert the username into the LDAP Distinguished Name (DN), so that the resulting DN looks like uid=username,this parameter. For example, if this parameter is set to "ou=People,dc=cloudera,dc=com", and the username passed in is "mike", the resulting authentication passed to the LDAP server look like "uid=mike,ou=People,dc=cloudera,dc=com". This parameter is mutually exclusive with Active Directory Domain. ldap_baseDN ldap_baseDN false
LDAP Pattern When set, this parameter allows arbitrary mapping from usernames into a Distinguished Name (DN). The string specified must have a placeholder named "#UID" inside it, and that #UID is replaced with the username. For example, you could mimic the behavior of LDAP BaseDN by specifying "uid=#UID,ou=People,dc=cloudera,dc=com". When the username of "mike" comes in, it replaces the #UID and the result is "uid=mike,ou=People,dc=cloudera,dc=com". This option should be used when more control over the DN is needed. This parameter is mutually exclusive with LDAP Domain and LDAP BaseDN. ldap_bind_pattern ldap_bind_pattern false
Active Directory Domain This parameter is useful when authenticating against an Active Directory server. This value is appended to all usernames before authenticating against AD. For example, if this parameter is set to "my.domain.com", and the user authenticating is "mike", then "mike@my.domain.com" is passed to AD. If this field is unset, the username remains unaltered before being passed to AD. ldap_domain ldap_domain false
Impala TLS/SSL CA Certificate The location on disk of the certificate, in PEM format, used to confirm the authenticity of SSL/TLS servers that the Impala daemons might connect to. Because the Impala daemons connect to each other, this should also include the CA certificate used to sign all the SSL/TLS Certificates. Without this parameter, SSL/TLS between Impala daemons will not be enabled. ssl_client_ca_certificate ssl_client_ca_certificate false
Impala TLS/SSL Server Private Key File (PEM Format) The path to the TLS/SSL file containing the private key used for TLS/SSL. Used when Impala is acting as a TLS/SSL server. The certificate file must be in PEM format. ssl_private_key ssl_private_key false
Impala TLS/SSL Private Key Password The password for the private key in the Impala TLS/SSL Server Certificate and Private Key file. If left blank, the private key is not protected by a password. ssl_private_key_password_cmd ssl_private_key_password false
Impala TLS/SSL Server Certificate File (PEM Format) The path to the TLS/SSL file containing the server certificate key used for TLS/SSL. Used when Impala is acting as a TLS/SSL server. The certificate file must be in PEM format. ssl_server_certificate ssl_server_certificate false

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Configuration Validator: Impala Catalog Server Count Validator Whether to suppress configuration warnings produced by the Impala Catalog Server Count Validator configuration validator. false service_config_suppression_catalogserver_count_validator true
Suppress Parameter Validation: Proxy User Configuration Whether to suppress configuration warnings produced by the built-in parameter validation for the Proxy User Configuration parameter. false service_config_suppression_impala_authorized_proxy_user_config true
Suppress Configuration Validator: Bypass Hive Metastore Validator Whether to suppress configuration warnings produced by the Bypass Hive Metastore Validator configuration validator. false service_config_suppression_impala_bypass_hms_validator true
Suppress Parameter Validation: Impala Command Line Argument Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Command Line Argument Advanced Configuration Snippet (Safety Valve) parameter. false service_config_suppression_impala_cmd_args_safety_valve true
Suppress Configuration Validator: Impala Command Line Arguments Safety Valve Validator Whether to suppress configuration warnings produced by the Impala Command Line Arguments Safety Valve Validator configuration validator. false service_config_suppression_impala_cmd_args_safety_valve_validator true
Suppress Configuration Validator: Impala Short-Circuit Read Validator Whether to suppress configuration warnings produced by the Impala Short-Circuit Read Validator configuration validator. false service_config_suppression_impala_dfs_client_read_shortcircuit_validator true
Suppress Configuration Validator: Enable HDFS Block Metadata API Configuration Validator Whether to suppress configuration warnings produced by the Enable HDFS Block Metadata API Configuration Validator configuration validator. false service_config_suppression_impala_hdfs_dfs_datanode_hdfs_blocks_metadata_enabled_set_validator true
Suppress Parameter Validation: LDAP URL Whether to suppress configuration warnings produced by the built-in parameter validation for the LDAP URL parameter. false service_config_suppression_impala_ldap_uri true
Suppress Configuration Validator: LDAP Configuration Validator Whether to suppress configuration warnings produced by the LDAP Configuration Validator configuration validator. false service_config_suppression_impala_ldap_validator true
Suppress Configuration Validator: Impala Llama Supported Validator Whether to suppress configuration warnings produced by the Impala Llama Supported Validator configuration validator. false service_config_suppression_impala_llama_supported_validator true
Suppress Parameter Validation: Impala Query Aggregates Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Query Aggregates parameter. false service_config_suppression_impala_query_aggregates true
Suppress Configuration Validator: Impala Sentry Validator Whether to suppress configuration warnings produced by the Impala Sentry Validator configuration validator. false service_config_suppression_impala_sentry_validator true
Suppress Parameter Validation: Impala Service Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Service Environment Advanced Configuration Snippet (Safety Valve) parameter. false service_config_suppression_impala_service_env_safety_valve true
Suppress Configuration Validator: Impala Daemon Count Validator Whether to suppress configuration warnings produced by the Impala Daemon Count Validator configuration validator. false service_config_suppression_impalad_count_validator true
Suppress Parameter Validation: Impala Service Advanced Configuration Snippet (Safety Valve) for sentry-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Service Advanced Configuration Snippet (Safety Valve) for sentry-site.xml parameter. false service_config_suppression_impalad_sentry_safety_valve true
Suppress Parameter Validation: Kerberos Principal Whether to suppress configuration warnings produced by the built-in parameter validation for the Kerberos Principal parameter. false service_config_suppression_kerberos_princ_name true
Suppress Parameter Validation: LDAP BaseDN Whether to suppress configuration warnings produced by the built-in parameter validation for the LDAP BaseDN parameter. false service_config_suppression_ldap_basedn true
Suppress Parameter Validation: LDAP Pattern Whether to suppress configuration warnings produced by the built-in parameter validation for the LDAP Pattern parameter. false service_config_suppression_ldap_bind_pattern true
Suppress Parameter Validation: Active Directory Domain Whether to suppress configuration warnings produced by the built-in parameter validation for the Active Directory Domain parameter. false service_config_suppression_ldap_domain true
Suppress Configuration Validator: Impala Llama ApplicationMaster Count Validator Whether to suppress configuration warnings produced by the Impala Llama ApplicationMaster Count Validator configuration validator. false service_config_suppression_llama_count_validator true
Suppress Parameter Validation: Audit Event Filter Whether to suppress configuration warnings produced by the built-in parameter validation for the Audit Event Filter parameter. false service_config_suppression_navigator_audit_event_filter true
Suppress Parameter Validation: Impala Client Advanced Configuration Snippet (Safety Valve) for navigator.client.properties Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Client Advanced Configuration Snippet (Safety Valve) for navigator.client.properties parameter. false service_config_suppression_navigator_client_config_safety_valve true
Suppress Parameter Validation: Audit Event Tracker Whether to suppress configuration warnings produced by the built-in parameter validation for the Audit Event Tracker parameter. false service_config_suppression_navigator_event_tracker true
Suppress Parameter Validation: Impala Client Advanced Configuration Snippet (Safety Valve) for navigator.lineage.client.properties Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala Client Advanced Configuration Snippet (Safety Valve) for navigator.lineage.client.properties parameter. false service_config_suppression_navigator_lineage_client_config_safety_valve true
Suppress Configuration Validator: CA Certificate File Validator Whether to suppress configuration warnings produced by the CA Certificate File Validator configuration validator. false service_config_suppression_pem_ca_cert_recommended_for_ssl true
Suppress Parameter Validation: Impala System Group (except Llama) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala System Group (except Llama) parameter. false service_config_suppression_process_groupname true
Suppress Parameter Validation: Impala System User (except Llama) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala System User (except Llama) parameter. false service_config_suppression_process_username true
Suppress Parameter Validation: Service Triggers Whether to suppress configuration warnings produced by the built-in parameter validation for the Service Triggers parameter. false service_config_suppression_service_triggers true
Suppress Configuration Validator: Short-Circuit Read Enabled Validator Whether to suppress configuration warnings produced by the Short-Circuit Read Enabled Validator configuration validator. false service_config_suppression_short_circuit_read_validator true
Suppress Configuration Validator: Short-Circuit Read Permissions Validator Whether to suppress configuration warnings produced by the Short-Circuit Read Permissions Validator configuration validator. false service_config_suppression_short_circuit_reads_data_directory_permissions_validator true
Suppress Parameter Validation: Service Monitor Derived Configs Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Service Monitor Derived Configs Advanced Configuration Snippet (Safety Valve) parameter. false service_config_suppression_smon_derived_configs_safety_valve true
Suppress Parameter Validation: Impala TLS/SSL CA Certificate Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala TLS/SSL CA Certificate parameter. false service_config_suppression_ssl_client_ca_certificate true
Suppress Parameter Validation: Impala TLS/SSL Server Private Key File (PEM Format) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala TLS/SSL Server Private Key File (PEM Format) parameter. false service_config_suppression_ssl_private_key true
Suppress Parameter Validation: Impala TLS/SSL Private Key Password Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala TLS/SSL Private Key Password parameter. false service_config_suppression_ssl_private_key_password true
Suppress Parameter Validation: Impala TLS/SSL Server Certificate File (PEM Format) Whether to suppress configuration warnings produced by the built-in parameter validation for the Impala TLS/SSL Server Certificate File (PEM Format) parameter. false service_config_suppression_ssl_server_certificate true
Suppress Configuration Validator: Impala StateStore Count Validator Whether to suppress configuration warnings produced by the Impala StateStore Count Validator configuration validator. false service_config_suppression_statestore_count_validator true
Suppress Health Test: Impala Catalog Server Health Whether to suppress the results of the Impala Catalog Server Health heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false service_health_suppression_impala_catalogserver_health true
Suppress Health Test: Impala Daemon Health Whether to suppress the results of the Impala Daemon Health heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false service_health_suppression_impala_impalads_healthy true
Suppress Health Test: Impala Llama ApplicationMaster Health Whether to suppress the results of the Impala Llama ApplicationMaster Health heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false service_health_suppression_impala_llamas_healthy true
Suppress Health Test: Impala StateStore Health Whether to suppress the results of the Impala StateStore Health heath test. The results of suppressed health tests are ignored when computing the overall health of the associated host, role or service, so suppressed health tests will not generate alerts. false service_health_suppression_impala_statestore_health true