Failover Controller Health Tests

This Failover Controller health test checks that the number of file descriptors used does not rise above some percentage of the Failover Controller 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 Failover Controller monitoring setting.

Short Name: File Descriptors

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

Short Name: Host Health

This Failover Controller health test checks that the filesystem containing the log directory of this Failover Controller 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 Failover Controller monitoring settings.

Short Name: Log Directory Free Space

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

Short Name: Process Status

This Failover Controller health test checks that the Failover Controller 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 Failover Controller monitoring settings.

Short Name: Unexpected Exits