Impala Properties in CDH 4.7.0
impalacatalogserverdefaultgroup
Advanced
| Display Name | Description | Related Name | Default Value | API Name | Required |
|---|---|---|---|---|---|
| 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 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 | ||
| 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 | ||
| Catalog Server Core Dump Directory | Directory where Catalog Server core dump will be 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 | true | load_catalog_in_background | 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 |
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 |
| 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 Check Startup Tolerance | The amount of time allowed after this role is started that failures of health checks 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 | |
| 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. | Warning: Any, 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 all of the following fields:
|
[] | 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 |
|---|---|---|---|---|---|
| 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 |
|---|---|---|---|---|---|
| SSL/TLS Certificate for Catalog Server Webserver | Local path to the certificate presented by the Catalog Server debug webserver. This file must be in .pem format. If empty, webserver SSL/TLS support is not enabled. | 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 |
impaladaemondefaultgroup
Advanced
| Display Name | Description | Related Name | Default Value | API Name | Required |
|---|---|---|---|---|---|
| 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 | ||
| 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 Impala Daemon core dump will be 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 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 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 |
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 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 | |
| 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 Host Health Test | When computing the overall Impala Daemon health, consider the host's health. | true | impalad_host_health_enabled | 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 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.. | 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 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.. Specified as a percentage of the capacity on that filesystem. This setting is not used if a 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. 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 | |
| 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. | 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 all of the following fields:
|
[] | 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 | ||
| 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 ImpalaBackendService 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 |
| 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 in bytes for Impala Daemon, enforced by the daemon itself. If reached, queries running on the Impala Daemon may be killed. Leave it blank to let Impala pick its own limit. Use a value of -1 B to specify no 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 |
|---|---|---|---|---|---|
| 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, Impala by default trusts all certificates supplied by the LDAP server, which means that an attacker could potentially intercept otherwise encrypted usernames and passwords. | ldap_ca_certificate | impalad_ldap_ca_certificate | false | |
| SSL/TLS Certificate for Impala Daemon Webserver | Local path to the certificate presented by the Impala daemon debug webserver. This file must be in .pem format. If empty, webserver SSL/TLS support is not enabled. | 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 |
impalastatestoredefaultgroup
Advanced
| Display Name | Description | Related Name | Default Value | API Name | Required |
|---|---|---|---|---|---|
| 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 | ||
| StateStore Core Dump Directory | Directory where StateStore core dump will be 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 | |
| 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 |
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 |
| 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 | |
| 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. | Warning: Any, 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 all of the following fields:
|
[] | 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 Check Startup Tolerance | The amount of time allowed after this role is started that failures of health checks 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 |
|---|---|---|---|---|---|
| SSL/TLS Certificate for Statestore Webserver | Local path to the certificate presented by the StateStore debug webserver. This file must be in .pem format. If empty, webserver SSL/TLS support is not enabled. | 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 |
service_wide
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 | 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 | false | |
| Fair Scheduler Allocations | JSON representation of all the configurations that the Fair Scheduler can take on across all schedules. Typically edited using the Pools configuration UI. This configuration only has effect on Impala versions 1.3 or greater. | defaultMinSharePreemptionTimeout:null, defaultQueueSchedulingPolicy:null, fairSharePreemptionTimeout:null, queueMaxAMShareDefault:null, queueMaxAppsDefault:null, queuePlacementRules:null, queues:[aclAdministerApps:null, aclSubmitApps:null, minSharePreemptionTimeout:null, name:root, queues:[aclAdministerApps:null, aclSubmitApps:null, minSharePreemptionTimeout:null, name:default, queues:[], schedulablePropertiesList:[impalaMaxMemory:null, impalaMaxQueuedQueries:null, impalaMaxRunningQueries:null, maxAMShare:null, maxResources:null, maxRunningApps:null, minResources:null, scheduleName:default, weight:null], schedulingPolicy:null], schedulablePropertiesList:[impalaMaxMemory:null, impalaMaxQueuedQueries:null, impalaMaxRunningQueries:null, maxAMShare:null, maxResources:null, maxRunningApps:null, minResources:null, scheduleName:default, weight:null], schedulingPolicy:null], userMaxAppsDefault:null, users:[] | impala_scheduled_allocations | 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 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. | 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:
|
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:
|
navigator_event_tracker | navigator_event_tracker | 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 | |
| Assignment Locality Minimum Assignments | The minimum number of assignments that must occur during the test time period before the threshold values will be checked. Until this number of assignments have been observed in the test time period the health test will be disabled. | 10 | impala_assignment_locality_minimum | false | |
| Assignment Locality Ratio Thresholds | The health test thresholds for the assignment locality health test. Specified as a percentage of total assignments. | Warning: 80.0 %, Critical: 5.0 % | impala_assignment_locality_thresholds | false | |
| Assignment Locality Monitoring Period | The time period over which to compute the assignment locality ratio. Specified in minutes. | 15 minute(s) | impala_assignment_locality_window | 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 | |
| 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, YARN_POOL, IMPALA] , attributeName: hdfs_bytes_written, aggregationTargets: [USER, YARN_POOL, IMPALA] , attributeName: thread_cpu_time, aggregationTargets: [USER, YARN_POOL, IMPALA] , attributeName: bytes_streamed, aggregationTargets: [USER, YARN_POOL, IMPALA] , attributeName: cm_cpu_milliseconds, aggregationTargets: [USER] , attributeName: query_duration, aggregationTargets: [USER, YARN_POOL, IMPALA] ] | 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 all of the following
fields:
|
[] | 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 |
|---|---|---|---|---|---|
| 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 |
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 co-located 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 Client Services | Encrypt communication between clients (like ODBC, JDBC, and the Impala shell) and the Impala daemon 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. Usernames and passwords are transmitted in the clear unless encryption is turned on. To encrypt the network traffic from the Impala daemon to the LDAP server, use either an ldaps:// URI or select 'Enable LDAP TLS'. To encrypt network traffic from clients to the Impala daemon, specify 'Enable TLS/SSL for Impala Client Services'. | enable_ldap_auth | false | enable_ldap_auth | false |
| Enable LDAP TLS | If true, attempts to establish a TLS (Transport Layer Security) connection with the LDAP server. Only supported in Impala 1.4 or CDH 5.1 or higher. Not required when using an LDAP URI with prefix ldaps://, because that already specifies TLS. | ldap_tls | false | enable_ldap_tls | false |
| LDAP URI | The URI of the LDAP server to use if LDAP is enabled. The URI must be prefixed with ldap:// or ldaps://. The URI can optionally specify the port, for example: ldap://ldap_server.example.com:389. ldaps:// is only supported in Impala 1.4 or CDH 5.1 or higher, and usually requires that you specify a port. | 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 | 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,X. 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 looks like "uid=mike,ou=People,dc=cloudera,dc=com". This parameter is frequently useful when authenticating against an OpenLDAP server. This parameter is mutually exclusive with LDAP Domain and LDAP Pattern. | 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 | |
| LDAP Domain | When set, this value is appended to all usernames before authenticating with the LDAP server. For example, if this parameter is set to "my.domain.com", and the user authenticating to the Impala daemon is "mike", then "mike@my.domain.com" is passed to the LDAP server. If this field is unset, the username remains unaltered before being passed to the LDAP server. This parameter is mutually exclusive with LDAP BaseDN and LDAP Pattern. | ldap_domain | ldap_domain | false | |
| SSL/TLS Private Key for Clients | Local path to the private key that matches the certificate specified in the Certificate for Clients. This file must be in PEM format, and is required if the SSL/TLS Certificate for Clients is supplied. | ssl_private_key | ssl_private_key | false | |
| SSL/TLS Certificate for Clients | Local path to the X509 certificate that will identify the Impala daemon to clients during SSL/TLS connections. This file must be in PEM format. | ssl_server_certificate | ssl_server_certificate | false |