HBase REST Server Health Tests

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

Short Name: File Descriptors

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

Short Name: Host Health

This HBase REST Server health test checks that the filesystem containing the log directory of this HBase REST 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 HBase REST Server monitoring settings.

Short Name: Log Directory Free Space

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

Short Name: Process Status

This HBase REST Server health test checks that the HBase REST 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 HBase REST Server monitoring settings.

Short Name: Unexpected Exits