Sentry Properties in CDH 5.2.0

Role groups:

sentryserverdefaultgroup

Advanced

Display Name Description Related Name Default Value API Name Required
Sentry 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
Heap Dump Directory Path to directory where heap dumps are generated when java.lang.OutOfMemoryError error is thrown. This directory is automatically created if it doesn't exist. However, if this directory already exists, role user must have write access to this directory. If this directory is shared amongst multiple roles, it should have 1777 permissions. Note that the heap dump files are created with 600 permissions and are owned by the role user. The amount of free space in this directory should be greater than the maximum Java Process heap size configured for this role. /tmp oom_heap_dump_dir false
Dump Heap When Out of Memory When set, generates heap dump file when java.lang.OutOfMemoryError is thrown. false oom_heap_dump_enabled true
Kill When Out of Memory When set, a SIGKILL signal is sent to the role process when java.lang.OutOfMemoryError is thrown. true oom_sigkill_enabled true
Automatically Restart Process When set, this role's process is automatically (and transparently) restarted in the event of an unexpected failure. false process_auto_restart true
Sentry 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. sentry_env_safety_valve false
Java Configuration Options for Sentry Server These arguments will be passed as part of the Java command line. Commonly, garbage collection flags or extra debugging flags would be passed here. sentry_server_java_opts false

Logs

Display Name Description Related Name Default Value API Name Required
Sentry Server Logging Threshold The minimum log level for Sentry Server logs INFO log_threshold false
Sentry Server Maximum Log File Backups The maximum number of rolled log files to keep for Sentry Server logs. Typically used by log4j. 10 max_log_backup_index false
Sentry Server Max Log Size The maximum size, in megabytes, per log file for Sentry Server logs. Typically used by log4j. 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
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
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:
  • 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 will not be evaluated.
For example, here is a JSON formatted trigger configured for a DataNode that 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"}]Consult the trigger rules documentation for more details on how to write triggers using tsquery.The JSON format is evolving and may change in the future and as a result backward compatibility is not guaranteed between releases at this time.		 [] 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 % sentry_server_fd_thresholds false
Sentry Server Host Health Test When computing the overall Sentry Server health, consider the host's health. true sentry_server_host_health_enabled false
Sentry Server Process Health Test Enables the health test that the Sentry Server's process state is consistent with the role configuration true sentry_server_scm_health_enabled 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
Sentry Server Log Directory Directory where Sentry Server will place its log files. /var/log/sentry sentry_server_log_dir 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
Sentry Server RPC Port RPC port number of Sentry Server. sentry.service.server.rpc-port 8038 sentry_service_server_rpc_port true

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
Java Heap Size of Sentry Server in Bytes Maximum size in bytes for the Java Process heap memory. Passed to Java -Xmx. 1 GiB sentry_server_java_heapsize false

Stacks Collection

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

service_wide

Advanced

Display Name Description Related Name Default Value API Name Required
Sentry 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
System Group The group that this service's processes should run as. sentry process_groupname true
System User The user that this service's processes should run as. sentry process_username true
Sentry 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. sentry_server_config_safety_valve false

Cloudera Navigator

Display Name Description Related Name Default Value API Name Required
Enable Collection Enable collection of audit events from the service's roles. true navigator_audit_enabled false
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
Event Tracker Configures the rules for event tracking and coalescing. This feature is used to define equivalency between different audit events. When events match, according to a set of configurable parameters, only one entry in the audit list is generated for all the matching events. Tracking works by keeping a reference to events when they first appear, and comparing other incoming events against the "tracked" events according to the rules defined here. Event trackers are defined in a JSON object like the following: { "timeToLive" : [integer], "fields" : [ { "type" : [string], "name" : [string] } ] } Where:
  • timeToLive: maximum amount of time an event will be tracked, in milliseconds. Must be provided. This defines how long, since it's first seen, an event will be tracked. A value of 0 disables tracking.
  • fields: list of fields to compare when matching events against tracked events.
Each field has an evaluator type associated with it. The evaluator defines how the field data is to be compared. The following evaluators are available:
  • value: uses the field value for comparison.
  • userName: treats the field value as a userName, and ignores any host-specific data. This is useful for environment using Kerberos, so that only the principal name and realm are compared.
The following is the list of fields that can be used to compare Sentry events:
  • username: the user performing the action.
  • ipAddress: the IP from where the request originated.
  • operation: the Sentry operation being performed.
  • databaseName: the database affected by the operation.
  • tableName: the table affected by the operation.
 navigator_event_tracker navigator_event_tracker false

Logs

Display Name Description Related Name Default Value API Name Required
Audit Log Directory Path to the directory where audit logs will be written. The directory will be created if it doesn't exist. audit_event_log_dir /var/log/sentry/audit audit_event_log_dir false
Maximum Audit Log File Size Maximum size of audit log file in MB before it is rolled over. navigator.audit_log_max_file_size 100 MiB navigator_audit_log_max_file_size false

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
Sentry Server Role Health Test When computing the overall SENTRY health, consider Sentry Server's health true sentry_sentry_server_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:
  • 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 will not be evaluated.
For example, here is a JSON formatted trigger that 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"}]Consult the trigger rules documentation for more details on how to write triggers using tsquery.The JSON format is evolving and may change in the future and as a result backward compatibility is not guaranteed between releases at this time.		 [] 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
HDFS Service Name of the HDFS service that this Sentry service instance depends on hdfs_service true
Admin Groups If an end user is in one of these admin groups, that user has administrative privileges on the Sentry Server. sentry.service.admin.group hive, impala, hue sentry_service_admin_group false
Allowed Connecting Users List of users allowed to connect to the Sentry Server. These are usually service users such as hive and impala, and the list does not usually need to include end-users. sentry.service.allow.connect hive, impala, hue sentry_service_allow_connect false

Sentry Server Database

Display Name Description Related Name Default Value API Name Required
Sentry Server Database Host Host name of Sentry Server database. localhost sentry_server_database_host true
Sentry Server Database Name Name of Sentry Server database. sentry sentry_server_database_name true
Sentry Server Database Password Password for Sentry Server database. sentry.store.jdbc.password sentry_server_database_password false
Sentry Server Database Port Port number of Sentry Server database. 3306 sentry_server_database_port true
Sentry Server Database Type Type of Sentry Server database. mysql sentry_server_database_type false
Sentry Server Database User User for Sentry Server database. sentry.store.jdbc.user sentry sentry_server_database_user true