[jira] [Created] (AMBARI-21567) Ambari reports GREEN zookeeper when out of disk space prevents quorum

["Michael Howard (JIRA)" <ji...@apache.org>]

Michael Howard created AMBARI-21567:
---------------------------------------

             Summary: Ambari reports GREEN zookeeper when out of disk space prevents quorum
                 Key: AMBARI-21567
                 URL: https://issues.apache.org/jira/browse/AMBARI-21567
             Project: Ambari
          Issue Type: Bug
    Affects Versions: 2.2.0
         Environment: Ambari 2.2.0
IBM Open Platform 4.2.0.0
CentOS 6.8
            Reporter: Michael Howard


* Ambari reports Zookeeper status as GREEN, even though ZK is not happy and has not reached a quorum. 
* Ambari also shows YARN ResourceManager as GREEN, even though it doesn't start ... because it is waiting for Zookeeper
* YARN NodeManagers will try to start ... Ambari will report as GREEN and started for a few seconds, but then shows them as stopped. 
* root cause is that one of the  Zookeeper nodes ran out of disk space on /opt/hadoop/zookeeper volume ... which prevented a quorum from being formed

Seems like Ambari dashboard should catch the fact that Zookeeper was not in a good state. 

In our case, it would have saved significant time in diagnosing the problem. 




--
This message was sent by Atlassian JIRA
(v6.4.14#64029)