Accumulo Properties in CDH 5.6.0

Role groups:

Garbage Collector

Advanced

Display Name Description Related Name Default Value API Name Required
Garbage Collector Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml For advanced use only. A string to be inserted into accumulo-site.xml for this role only. accumulo-site.xml_role_safety_valve false
Garbage Collector 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. ACCUMULO16_GC_role_env_safety_valve false
Garbage Collector 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. false 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
Garbage Collector Log Directory The log directory for log files of the role Garbage Collector. log_dir /var/log/accumulo log_dir false
Garbage Collector Logging Threshold The minimum log level for Garbage Collector logs INFO log_threshold false
Garbage Collector Maximum Log File Backups The maximum number of rolled log files to keep for Garbage Collector logs. Typically used by log4j or logback. 10 max_log_backup_index false
Garbage Collector Max Log Size The maximum size, in megabytes, per log file for Garbage Collector logs. Typically used by log4j or logback. 200 MiB max_log_size false

Monitoring

Display Name Description Related Name Default Value API Name Required
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 % accumulo16_gc_fd_thresholds false
Garbage Collector Host Health Test When computing the overall Garbage Collector health, consider the host's health. true accumulo16_gc_host_health_enabled false
Garbage Collector Process Health Test Enables the health test that the Garbage Collector's process state is consistent with the role configuration true accumulo16_gc_scm_health_enabled 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
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
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 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
Garbage Collector Max Heapsize Maximum size for the Java Process heap. Passed to Java -Xmx. Measured in bytes. gc_max_heapsize 1 GiB gc_max_heapsize true

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

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

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Garbage Collector Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Garbage Collector Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml parameter. false role_config_suppression_accumulo-site.xml_role_safety_valve true
Suppress Parameter Validation: Garbage Collector Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Garbage Collector Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_accumulo16_gc_role_env_safety_valve 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: Garbage Collector Logging Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Garbage Collector Logging Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_log4j_safety_valve true
Suppress Parameter Validation: Garbage Collector Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Garbage Collector 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 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_accumulo16_accumulo16_gc_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_accumulo16_accumulo16_gc_file_descriptor 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_accumulo16_accumulo16_gc_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_accumulo16_accumulo16_gc_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_accumulo16_accumulo16_gc_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_accumulo16_accumulo16_gc_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_accumulo16_accumulo16_gc_unexpected_exits true

Gateway

Advanced

Display Name Description Related Name Default Value API Name Required
Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/accumulo-env.sh For advanced use only, a string to be inserted into the client configuration for accumulo-conf/accumulo-env.sh. accumulo-conf/accumulo-env.sh_client_config_safety_valve false
Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/accumulo-site.xml For advanced use only, a string to be inserted into the client configuration for accumulo-conf/accumulo-site.xml. accumulo-conf/accumulo-site.xml_client_config_safety_valve false
Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/log4j.properties For advanced use only, a string to be inserted into the client configuration for accumulo-conf/log4j.properties. accumulo-conf/log4j.properties_client_config_safety_valve false
Deploy Directory The directory where the client configs will be deployed /etc/accumulo client_config_root_dir true

Monitoring

Display Name Description Related Name Default Value API Name Required
Enable Configuration Change Alerts When set, Cloudera Manager will send alerts when this entity's configuration changes. false enable_config_alerts false

Other

Display Name Description Related Name Default Value API Name Required
Alternatives Priority The priority level that the client configuration will have in the Alternatives system on the hosts. Higher priority levels will cause Alternatives to prefer this configuration over any others. 51 client_config_priority true
Client Max Heapsize Maximum size for the Java Process heap. Passed to Java -Xmx. Measured in bytes. client_max_heapsize 1 GiB client_max_heapsize true

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/accumulo-env.sh Whether to suppress configuration warnings produced by the built-in parameter validation for the Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/accumulo-env.sh parameter. false role_config_suppression_accumulo-conf/accumulo-env.sh_client_config_safety_valve true
Suppress Parameter Validation: Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/accumulo-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/accumulo-site.xml parameter. false role_config_suppression_accumulo-conf/accumulo-site.xml_client_config_safety_valve true
Suppress Parameter Validation: Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/log4j.properties Whether to suppress configuration warnings produced by the built-in parameter validation for the Accumulo Client Advanced Configuration Snippet (Safety Valve) for accumulo-conf/log4j.properties parameter. false role_config_suppression_accumulo-conf/log4j.properties_client_config_safety_valve 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: Deploy Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Deploy Directory parameter. false role_config_suppression_client_config_root_dir true

Master

Advanced

Display Name Description Related Name Default Value API Name Required
Master Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml For advanced use only. A string to be inserted into accumulo-site.xml for this role only. accumulo-site.xml_role_safety_valve false
Master 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. ACCUMULO16_MASTER_role_env_safety_valve false
Master 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. false 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
Master Log Directory The log directory for log files of the role Master. log_dir /var/log/accumulo log_dir false
Master Logging Threshold The minimum log level for Master logs INFO log_threshold false
Master Maximum Log File Backups The maximum number of rolled log files to keep for Master logs. Typically used by log4j or logback. 10 max_log_backup_index false
Master Max Log Size The maximum size, in megabytes, per log file for Master logs. Typically used by log4j or logback. 200 MiB max_log_size false

Monitoring

Display Name Description Related Name Default Value API Name Required
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 % accumulo16_master_fd_thresholds false
Master Host Health Test When computing the overall Master health, consider the host's health. true accumulo16_master_host_health_enabled false
Master Process Health Test Enables the health test that the Master's process state is consistent with the role configuration true accumulo16_master_scm_health_enabled 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
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
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 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
Master Max Heapsize Maximum size for the Java Process heap. Passed to Java -Xmx. Measured in bytes. master_max_heapsize 1 GiB master_max_heapsize true

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

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

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Master Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Master Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml parameter. false role_config_suppression_accumulo-site.xml_role_safety_valve true
Suppress Parameter Validation: Master Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Master Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_accumulo16_master_role_env_safety_valve 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: Master Logging Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Master Logging Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_log4j_safety_valve true
Suppress Parameter Validation: Master Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Master 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 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_accumulo16_accumulo16_master_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_accumulo16_accumulo16_master_file_descriptor 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_accumulo16_accumulo16_master_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_accumulo16_accumulo16_master_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_accumulo16_accumulo16_master_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_accumulo16_accumulo16_master_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_accumulo16_accumulo16_master_unexpected_exits true

Monitor

Advanced

Display Name Description Related Name Default Value API Name Required
Monitor Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml For advanced use only. A string to be inserted into accumulo-site.xml for this role only. accumulo-site.xml_role_safety_valve false
Monitor 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. ACCUMULO16_MONITOR_role_env_safety_valve false
Monitor 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. false 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
Monitor Log Directory The log directory for log files of the role Monitor. log_dir /var/log/accumulo log_dir false
Monitor Logging Threshold The minimum log level for Monitor logs INFO log_threshold false
Monitor Maximum Log File Backups The maximum number of rolled log files to keep for Monitor logs. Typically used by log4j or logback. 10 max_log_backup_index false
Monitor Max Log Size The maximum size, in megabytes, per log file for Monitor logs. Typically used by log4j or logback. 200 MiB max_log_size false

Monitoring

Display Name Description Related Name Default Value API Name Required
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 % accumulo16_monitor_fd_thresholds false
Monitor Host Health Test When computing the overall Monitor health, consider the host's health. true accumulo16_monitor_host_health_enabled false
Monitor Process Health Test Enables the health test that the Monitor's process state is consistent with the role configuration true accumulo16_monitor_scm_health_enabled 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
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
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 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
Bind to All Interfaces If set the Monitor role will use all IPv4 interfaces for serving its web UI. Otherwise, it will only bind to the interface that corresponds to the address the role's hostname resolves to. monitor_bind_all false monitor_bind_all false
Monitor Max Heapsize Maximum size for the Java Process heap. Passed to Java -Xmx. Measured in bytes. monitor_max_heapsize 1 GiB monitor_max_heapsize true

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

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

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Monitor Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Monitor Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml parameter. false role_config_suppression_accumulo-site.xml_role_safety_valve true
Suppress Parameter Validation: Monitor Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Monitor Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_accumulo16_monitor_role_env_safety_valve 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: Monitor Logging Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Monitor Logging Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_log4j_safety_valve true
Suppress Parameter Validation: Monitor Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Monitor 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 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_accumulo16_accumulo16_monitor_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_accumulo16_accumulo16_monitor_file_descriptor 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_accumulo16_accumulo16_monitor_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_accumulo16_accumulo16_monitor_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_accumulo16_accumulo16_monitor_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_accumulo16_accumulo16_monitor_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_accumulo16_accumulo16_monitor_unexpected_exits true

Service-Wide

Advanced

Display Name Description Related Name Default Value API Name Required
Accumulo Service Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml For advanced use only, a string to be inserted into accumulo-site.xml. Applies to configurations of all roles in this service except client configuration. accumulo-site.xml_service_safety_valve false
Accumulo 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. ACCUMULO16_service_env_safety_valve false
System Group The group that this service's processes should run as. accumulo process_groupname true
System User The user that this service's processes should run as. accumulo process_username true

Monitoring

Display Name Description Related Name Default Value API Name Required
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
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

Other

Display Name Description Related Name Default Value API Name Required
Additional Classpath Additional paths to add to general.classpaths. accumulo_classpath accumulo_classpath false
HDFS Directory The directory used in HDFS by Accumulo. instance.dfs.dir /accumulo accumulo_hdfs_dir true
Instance Name Name of the Accumulo instance. Used while initializing Accumulo. accumulo_instance_name accumulo accumulo_instance_name true
Accumulo Instance Secret A secret unique to a given instance that all servers must know in order to communicate with one another. instance.secret DEFAULT accumulo_instance_secret true
Additional Java Options These arguments will be passed as part of the Java command line. Commonly, garbage collection flags or extra debugging flags would be passed here. accumulo_java_opts -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:-CMSConcurrentMTEnabled -XX:CMSInitiatingOccupancyFraction=70 -XX:+CMSParallelRemarkEnabled -Djava.net.preferIPv4Stack=true accumulo_java_opts false
Root Password Password for root Accumulo user. Used while initializing Accumulo. If you are chaging this and are using root user for tracing, make sure to set Trace Password to same value. accumulo_root_password ****** accumulo_root_password true
Trace Password Trace Password. If you are using root user for tracing, then make sure it is set to same value as Root Password. trace.token.property.password ****** accumulo_trace_password true
Trace User Trace User trace.user root accumulo_trace_user true
HDFS Service Name of the HDFS service that this Accumulo service instance depends on hdfs_service true
Graceful Shutdown Timeout The timeout in milliseconds to wait for graceful shutdown to complete. 180000 stop_timeout false
Table File Replication Replication factor for table files. table.file.replication 3 table_file_replication true
ZooKeeper Service Name of the ZooKeeper service that this Accumulo service instance depends on zookeeper_service true

Ports and Addresses

Display Name Description Related Name Default Value API Name Required
Garbage Collector Client Port Port number on which clients communicate with Garbage Collector gc.port.client 50091 gc_port_client true
Master Client Port Port number on which clients communicate with Accumulo Master master.port.client 10010 master_port_client true
Monitor Client Port Port number on which clients communicate with Accumulo Monitor monitor.port.client 50095 monitor_port_client true
Tablet Server Client Port Port number on which clients communicate with Tablet Server tserver.port.client 10011 tserver_port_client true

Security

Display Name Description Related Name Default Value API Name Required
Kerberos Principal Kerberos principal short name used by all roles of this service. accumulo kerberos_princ_name true

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Accumulo Service Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Accumulo Service Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml parameter. false service_config_suppression_accumulo-site.xml_service_safety_valve true
Suppress Configuration Validator: Garbage Collector Count Validator Whether to suppress configuration warnings produced by the Garbage Collector Count Validator configuration validator. false service_config_suppression_accumulo16_gc_count_validator true
Suppress Configuration Validator: Master Count Validator Whether to suppress configuration warnings produced by the Master Count Validator configuration validator. false service_config_suppression_accumulo16_master_count_validator true
Suppress Configuration Validator: Monitor Count Validator Whether to suppress configuration warnings produced by the Monitor Count Validator configuration validator. false service_config_suppression_accumulo16_monitor_count_validator true
Suppress Parameter Validation: Accumulo Service Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Accumulo Service Environment Advanced Configuration Snippet (Safety Valve) parameter. false service_config_suppression_accumulo16_service_env_safety_valve true
Suppress Configuration Validator: Tracer Count Validator Whether to suppress configuration warnings produced by the Tracer Count Validator configuration validator. false service_config_suppression_accumulo16_tracer_count_validator true
Suppress Configuration Validator: Tablet Server Count Validator Whether to suppress configuration warnings produced by the Tablet Server Count Validator configuration validator. false service_config_suppression_accumulo16_tserver_count_validator true
Suppress Parameter Validation: Additional Classpath Whether to suppress configuration warnings produced by the built-in parameter validation for the Additional Classpath parameter. false service_config_suppression_accumulo_classpath true
Suppress Parameter Validation: HDFS Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the HDFS Directory parameter. false service_config_suppression_accumulo_hdfs_dir true
Suppress Parameter Validation: Instance Name Whether to suppress configuration warnings produced by the built-in parameter validation for the Instance Name parameter. false service_config_suppression_accumulo_instance_name true
Suppress Parameter Validation: Accumulo Instance Secret Whether to suppress configuration warnings produced by the built-in parameter validation for the Accumulo Instance Secret parameter. false service_config_suppression_accumulo_instance_secret true
Suppress Parameter Validation: Additional Java Options Whether to suppress configuration warnings produced by the built-in parameter validation for the Additional Java Options parameter. false service_config_suppression_accumulo_java_opts true
Suppress Parameter Validation: Root Password Whether to suppress configuration warnings produced by the built-in parameter validation for the Root Password parameter. false service_config_suppression_accumulo_root_password true
Suppress Parameter Validation: Trace Password Whether to suppress configuration warnings produced by the built-in parameter validation for the Trace Password parameter. false service_config_suppression_accumulo_trace_password true
Suppress Parameter Validation: Trace User Whether to suppress configuration warnings produced by the built-in parameter validation for the Trace User parameter. false service_config_suppression_accumulo_trace_user true
Suppress Configuration Validator: Gateway Count Validator Whether to suppress configuration warnings produced by the Gateway Count Validator configuration validator. false service_config_suppression_gateway_count_validator 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: System Group Whether to suppress configuration warnings produced by the built-in parameter validation for the System Group parameter. false service_config_suppression_process_groupname true
Suppress Parameter Validation: System User Whether to suppress configuration warnings produced by the built-in parameter validation for the System User 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 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

Tablet Server

Advanced

Display Name Description Related Name Default Value API Name Required
Tablet Server Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml For advanced use only. A string to be inserted into accumulo-site.xml for this role only. accumulo-site.xml_role_safety_valve false
Tablet 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. ACCUMULO16_TSERVER_role_env_safety_valve false
Tablet Server 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. false 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
Tablet Server Log Directory The log directory for log files of the role Tablet Server. log_dir /var/log/accumulo log_dir false
Tablet Server Logging Threshold The minimum log level for Tablet Server logs INFO log_threshold false
Tablet Server Maximum Log File Backups The maximum number of rolled log files to keep for Tablet Server logs. Typically used by log4j or logback. 10 max_log_backup_index false
Tablet Server Max Log Size The maximum size, in megabytes, per log file for Tablet 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
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 % accumulo16_tserver_fd_thresholds false
Tablet Server Host Health Test When computing the overall Tablet Server health, consider the host's health. true accumulo16_tserver_host_health_enabled false
Tablet Server Process Health Test Enables the health test that the Tablet Server's process state is consistent with the role configuration true accumulo16_tserver_scm_health_enabled 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
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
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 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
Logger WAL Directories The directory used to store write-ahead logs on the local filesystem. It is possible to specify a comma-separated list of directories. This property is only used during upgrade from 1.4 to 1.6 and should be set to the same value that was used with Accumulo 1.4. logger.dir.walog /var/lib/accumulo/walogs logger_dir_walog true
Tablet Server Cache Data Size Tablet Server cache data size. tserver.cache.data.size 15 MiB tserver_cache_data_size true
Tablet Server Cache Index Size Tablet Server cache index size. tserver.cache.index.size 40 MiB tserver_cache_index_size true
Tablet Server Max Heapsize Maximum size for the Java Process heap. Passed to Java -Xmx. Measured in bytes. tserver_max_heapsize 2 GiB tserver_max_heapsize true
Tablet Server Memory Maps Max Size Maximum size of Tablet Servers memory maps. tserver.memory.maps.max 256 MiB tserver_memory_maps_max true

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

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

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Tablet Server Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Tablet Server Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml parameter. false role_config_suppression_accumulo-site.xml_role_safety_valve true
Suppress Parameter Validation: Tablet Server Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Tablet Server Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_accumulo16_tserver_role_env_safety_valve 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: Tablet Server Logging Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Tablet Server Logging Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_log4j_safety_valve true
Suppress Parameter Validation: Tablet Server Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Tablet Server Log Directory parameter. false role_config_suppression_log_dir true
Suppress Parameter Validation: Logger WAL Directories Whether to suppress configuration warnings produced by the built-in parameter validation for the Logger WAL Directories parameter. false role_config_suppression_logger_dir_walog 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: Tablet Server Max Heapsize Whether to suppress configuration warnings produced by the built-in parameter validation for the Tablet Server Max Heapsize parameter. false role_config_suppression_tserver_max_heapsize 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_accumulo16_accumulo16_tserver_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_accumulo16_accumulo16_tserver_file_descriptor 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_accumulo16_accumulo16_tserver_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_accumulo16_accumulo16_tserver_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_accumulo16_accumulo16_tserver_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_accumulo16_accumulo16_tserver_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_accumulo16_accumulo16_tserver_unexpected_exits true

Tracer

Advanced

Display Name Description Related Name Default Value API Name Required
Tracer Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml For advanced use only. A string to be inserted into accumulo-site.xml for this role only. accumulo-site.xml_role_safety_valve false
Tracer 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. ACCUMULO16_TRACER_role_env_safety_valve false
Tracer 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. false 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
Tracer Log Directory The log directory for log files of the role Tracer. log_dir /var/log/accumulo log_dir false
Tracer Logging Threshold The minimum log level for Tracer logs INFO log_threshold false
Tracer Maximum Log File Backups The maximum number of rolled log files to keep for Tracer logs. Typically used by log4j or logback. 10 max_log_backup_index false
Tracer Max Log Size The maximum size, in megabytes, per log file for Tracer logs. Typically used by log4j or logback. 200 MiB max_log_size false

Monitoring

Display Name Description Related Name Default Value API Name Required
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 % accumulo16_tracer_fd_thresholds false
Tracer Host Health Test When computing the overall Tracer health, consider the host's health. true accumulo16_tracer_host_health_enabled false
Tracer Process Health Test Enables the health test that the Tracer's process state is consistent with the role configuration true accumulo16_tracer_scm_health_enabled 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
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
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 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
Tracer Max Heapsize Maximum size for the Java Process heap. Passed to Java -Xmx. Measured in bytes. tracer_max_heapsize 1 GiB tracer_max_heapsize true

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

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

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Tracer Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Tracer Advanced Configuration Snippet (Safety Valve) for accumulo-site.xml parameter. false role_config_suppression_accumulo-site.xml_role_safety_valve true
Suppress Parameter Validation: Tracer Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Tracer Environment Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_accumulo16_tracer_role_env_safety_valve 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: Tracer Logging Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Tracer Logging Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_log4j_safety_valve true
Suppress Parameter Validation: Tracer Log Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Tracer 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 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_accumulo16_accumulo16_tracer_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_accumulo16_accumulo16_tracer_file_descriptor 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_accumulo16_accumulo16_tracer_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_accumulo16_accumulo16_tracer_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_accumulo16_accumulo16_tracer_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_accumulo16_accumulo16_tracer_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_accumulo16_accumulo16_tracer_unexpected_exits true