HBase Master Health
This is an HBase service-level health test that checks for an active, healthy HBase Master. The test returns "Bad" health if the service is running and an active Master cannot be found. If an active Master is found, then the test checks the health of that Master as well as the health of any standby Masters configured. A "Good" health result will only be returned if the active Master is healthy and all running standby Masters are healthy. A failure of this health test may indicate stopped or unhealthy Master roles, or it may indicate a problem with communication between the Cloudera Manager Service Monitor and the HBase service. Check the status of the HBase service's Master roles and look in the Cloudera Manager Service Monitor's log files for more information when this test fails. This test can be enabled or disabled using the Active Master Health Test HBase service-wide monitoring setting. The check for a healthy standby Master can be enabled or disabled with Backup Masters Health Test. In addition, the HBase Active Master Detection Window can be used to adjust the amount of time that the Cloudera Manager Service Monitor has to detect the active HBase Master before this health test fails.
Short Name: HBase Master Health
Active Master Health Test
- Description
- When computing the overall HBase cluster health, consider the active HBase Master's health.
- Template Name
- hbase_master_health_enabled
- Default Value
- true
- Unit(s)
- no unit
Backup Masters Health Test
- Description
- When computing the overall HBase cluster health, consider the health of the backup HBase Masters.
- Template Name
- hbase_backup_masters_health_enabled
- Default Value
- true
- Unit(s)
- no unit
HBase Active Master Detection Window
- Description
- The tolerance window that will be used in HBase service tests that depend on detection of the active HBase Master.
- Template Name
- hbase_active_master_detection_window
- Default Value
- 3
- Unit(s)
- MINUTES
