Cloudera Manager Health Tests Report "health of the Activity Monitor is bad" on Oracle Big Data Appliance V2.1
(Doc ID 1567805.1)
Last updated on APRIL 08, 2020
Applies to:Big Data Appliance Integrated Software - Version 2.1.0 and later
Information in this document applies to any platform.
Checking the Health Tests in Cloudera Manager on the Oracle Big Data Appliance V2.1.2 by navigating:
Cloudera Manager > Services > mgmt
shows that the Activity Monitor used to monitor the jobs and activities running on the Hadoop cluster is in a "bad" state. As below:
1. The Health Tests report:
2. The Health History reports:
3. Status and Health Summary reports:
Associated errors include:
1. The health test result for ACTIVITY_MONITOR_WEB_METRIC_COLLECTION has become bad: The Cloudera Manager agent is not able to communicate with this role's web server.
2. Errors in the associated Activity Monitor log file include:
failed SelectChannelConnector@<HOSTNAME>.<DOMAIN>:9999: java.net.BindException: Address already in use
failed Server@<NAME>: java.net.BindException: Address already in use
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