Event Server Health Tests

Event Server Event Store Size

This is an Event Server health test that checks that the event store size has not grown too far above the configured event store capacity. A failure of this health test indicates that the Event Server is having a problem performing cleanup. This may indicate a configuration problem or bug in the Event Server. This test can be configured using the Event Store Capacity Monitoring Thresholds Event Server monitoring setting.

Short Name: Event Store Size

Property Name	Description	Template Name	Default Value	Unit
Event Store Capacity Monitoring Thresholds	The health test thresholds on the number of events in the event store. Specified as a percentage of the maximum number of events in Event Server store.	eventserver_capacity_thresholds	critical:130.0, warning:115.0	PERCENT

Event Server File Descriptors

This Event Server health test checks that the number of file descriptors used does not rise above some percentage of the Event Server file descriptor limit. A failure of this health test may indicate a bug in either Hadoop or Cloudera Manager. Contact Cloudera support. This test can be configured using the File Descriptor Monitoring Thresholds Event Server monitoring setting.

Short Name: File Descriptors

Property Name	Description	Template Name	Default Value	Unit
File Descriptor Monitoring Thresholds	The health test thresholds of the number of file descriptors used. Specified as a percentage of file descriptor limit.	eventserver_fd_thresholds	critical:70.0, warning:50.0	PERCENT

Event Server GC Duration

This Event Server health test checks that the Event Server is not spending too much time performing Java garbage collection. It checks that no more than some percentage of recent time is spent performing Java garbage collection. A failure of this health test may indicate a capacity planning problem or misconfiguration of the Event Server. This test can be configured using the Garbage Collection Duration Thresholds and Garbage Collection Duration Monitoring Period Event Server monitoring settings.

Short Name: GC Duration

Property Name	Description	Template Name	Default Value	Unit
Garbage Collection Duration Monitoring Period	The period to review when computing the moving average of garbage collection time.	eventserver_gc_duration_window	5	MINUTES
Garbage Collection Duration Thresholds	The health test thresholds for the weighted average time spent in Java garbage collection. Specified as a percentage of elapsed wall clock time.	eventserver_gc_duration_thresholds	critical:60.0, warning:30.0	no unit

Event Server Host Health

This Event Server health test factors in the health of the host upon which the Event Server is running. A failure of this test means that the host running the Event Server is experiencing some problem. See that host's status page for more details.This test can be enabled or disabled using the Event Server Host Health Test Event Server monitoring setting.

Short Name: Host Health

Property Name	Description	Template Name	Default Value	Unit
Event Server Host Health Test	When computing the overall Event Server health, consider the host's health.	eventserver_host_health_enabled	true	no unit

Event Server Index Directory Free Space

This is an Event Server health test that checks that the filesystem containing the index directory of this Event Server has sufficient free space. This test can be configured using the Index Directory Free Space Monitoring Absolute Thresholds and Index Directory Free Space Monitoring Percentage Thresholds Event Server monitoring settings.

Short Name: Index Directory Free Space

Property Name	Description	Template Name	Default Value	Unit
Index Directory Free Space Monitoring Absolute Thresholds	The health test thresholds for monitoring of free space on the filesystem that contains the index directory.	eventserver_index_directory_free_space_absolute_thresholds	critical:5.36870912E9, warning:1.073741824E10	BYTES
Index Directory Free Space Monitoring Percentage Thresholds	The health test thresholds for monitoring of free space on the filesystem that contains the index directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if an Index Directory Free Space Monitoring Absolute Thresholds setting is configured.	eventserver_index_directory_free_space_percentage_thresholds	critical:never, warning:never	PERCENT

Event Server Log Directory Free Space

This Event Server health test checks that the filesystem containing the log directory of this Event Server has sufficient free space. This test can be configured using the Log Directory Free Space Monitoring Absolute Thresholds and Log Directory Free Space Monitoring Percentage Thresholds Event Server monitoring settings.

Short Name: Log Directory Free Space

Property Name	Description	Template Name	Default Value	Unit
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.	log_directory_free_space_absolute_thresholds	critical:5.36870912E9, warning:1.073741824E10	BYTES
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.	log_directory_free_space_percentage_thresholds	critical:never, warning:never	PERCENT

Event Server Process Status

This Event Server health test checks that the Cloudera Manager Agent on the Event Server host is heart beating correctly and that the process associated with the Event Server role is in the state expected by Cloudera Manager. A failure of this health test may indicate a problem with the Event Server process, a lack of connectivity to the Cloudera Manager Agent on the Event Server host, or a problem with the Cloudera Manager Agent. This test can fail either because the Event Server has crashed or because the Event Server will not start or stop in a timely fashion. Check the Event Server logs for more details. If the test fails because of problems communicating with the Cloudera Manager Agent on the Event Server host, check the status of the Cloudera Manager Agent by running /etc/init.d/cloudera-scm-agent status on the Event Server host, or look in the Cloudera Manager Agent logs on the Event Server host for more details. This test can be enabled or disabled using the Event Server Process Health Test Event Server monitoring setting.

Short Name: Process Status

Property Name	Description	Template Name	Default Value	Unit
Event Server Process Health Test	Enables the health test that the Event Server's process state is consistent with the role configuration	eventserver_scm_health_enabled	true	no unit

Event Server Unexpected Exits

This Event Server health test checks that the Event Server has not recently exited unexpectedly. The test returns "Bad" health if the number of unexpected exits goes above a critical threshold. For example, if this test is configured with a critical threshold of 1, this test would return "Good" health if there have been no unexpected exits recently. If there has been 1 or more unexpected exits recently, this test would return "Bad" health. This test can be configured using the Unexpected Exits Thresholds and Unexpected Exits Monitoring Period Event Server monitoring settings.

Short Name: Unexpected Exits

Property Name	Description	Template Name	Default Value	Unit
Unexpected Exits Monitoring Period	The period to review when computing unexpected exits.	unexpected_exits_window	5	MINUTES
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.	unexpected_exits_thresholds	critical:any, warning:never	no unit

Event Server Web Server Status

This health test checks that the role's web server is responding quickly to requests by the Cloudera Manager Agent, and that the Cloudera Manager Agent can collect metrics from the web server. A failure of this health test may indicate a problem with the web server of the Event Server, a misconfiguration of the Event Server or a problem with the Cloudera Manager Agent. Consult the Cloudera Manager Agent logs and the logs of the Event Server for more detail. If the test's failure message indicates a communication problem, this means that the Cloudera Manager Agent's HTTP requests to the Event Server's web server are failing or timing out. If the test's failure message indicates an unexpected response, then the Event Server's web server responded to the Cloudera Manager Agent's request, but the response could not interpreted for some reason. This test can be configured using the Web Metric Collection Event Server monitoring setting.

Short Name: Web Server Status

Property Name	Description	Template Name	Default Value	Unit
Web Metric Collection	Enables the health test that the Cloudera Manager Agent can successfully contact and gather metrics from the web server.	eventserver_web_metric_collection_enabled	true	no unit
Web Metric Collection Duration	The health test thresholds on the duration of the metrics request to the web server.	eventserver_web_metric_collection_thresholds	critical:never, warning:10000.0	MILLISECONDS

Event Server Write Pipeline

This Event Server health test checks that no messages are being dropped by the writer stage of the Event Server pipeline. A failure of this health test indicates a problem with the Event Server. This may indicate a configuration problem or a bug in the Event Server. This test can be configured using the Event Server Write Pipeline Monitoring Time Period monitoring setting.

Short Name: Write Pipeline

Property Name	Description	Template Name	Default Value	Unit
Event Server Write Pipeline Monitoring Thresholds	The health test thresholds for monitoring the Event Server write pipeline. This specifies the number of dropped messages that will be tolerated over the monitoring time period.	eventserver_write_pipeline_thresholds	critical:any, warning:never	no unit
Event Server Write Pipeline Monitoring Time Period	The time period over which the Event Server write pipeline will be monitored for dropped messages.	eventserver_write_pipeline_window	5	MINUTES