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 JANUARY 23, 2014

Applies to:

Big Data Appliance Integrated Software - Version 2.1.0 and later
Information in this document applies to any platform.

Symptoms

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:

The health of the Activity Monitor is bad.  The following health checks are bad: web server status


2. The Health History reports:

The health test result for MGMT_ACTIVITY_MONITOR_HEALTH has become bad. The health of the Activity Monitor is bad.  The following health checks are bad: web server status


3. Status and Health Summary reports:

Activity Monitor health is Bad. 

 

 

 

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:

WARN org.mortbay.log
failed SelectChannelConnector@xxxxx.com:9999: java.net.BindException: Address already in use
WARN org.mortbay.log
failed Server@1c527179: java.net.BindException: Address already in use
INFO com.cloudera.cmon.tree.ActivityAndAttemptPurgeService

 
 

Cause

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