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https://issues.apache.org/jira/browse/AMBARI-10067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14361358#comment-14361358
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Hudson commented on AMBARI-10067:
---------------------------------
SUCCESS: Integrated in Ambari-trunk-Commit #2031 (See
[https://builds.apache.org/job/Ambari-trunk-Commit/2031/])
AMBARI-10067: ZKFailoverController failed on restart (jluniya) (jluniya:
http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=a5c571e973badd90da3cb34e6c8345a3d80c9e4c)
*
ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/hdfs_namenode.py
* ambari-server/src/test/python/stacks/2.0.6/HDFS/test_zkfc.py
*
ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/zkfc_slave.py
> ZKFailoverController failed on restart
> --------------------------------------
>
> Key: AMBARI-10067
> URL: https://issues.apache.org/jira/browse/AMBARI-10067
> Project: Ambari
> Issue Type: Bug
> Components: ambari-agent
> Affects Versions: 2.0.0
> Reporter: Jayush Luniya
> Assignee: Jayush Luniya
> Fix For: 2.0.0
>
> Attachments: AMBARI-10067.patch
>
>
> Issue Summary:
> 1. When Namenode HA is enabled and "automatic failover" is selected, the
> "hdfs zkfc -formatZK" command is used to create a znode in ZooKeeper inside
> of which the automatic failover system stores its data.
> 2. When Namenode HA is enabled through the wizard, the user is asked to
> manually run this command.
> 3. When Namenode HA cluster is deployed using HA blueprint, the agent script
> has been executing "hdfs zkfc -formatZK -force -nonInteractive" to
> auto-format the znode. This means that everytime a ZKFC starts, we end up
> formatting the znode used to maintain the failover state.
> Fix:
> 1. Changing the command to "hdfs zkfc -formatZK -nonInteractive" so that the
> failover state is not reformatted and handling the case when the command
> returns a status=2 to indicate that the znode already exists and hence
> skipping formatting it.
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