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Posted to dev@ambari.apache.org by "Myroslav Papirkovskyy (JIRA)" <ji...@apache.org> on 2013/08/29 17:23:51 UTC
[jira] [Commented] (AMBARI-2955) Change Host Role Command ordering
for cluster in HA mode
[ https://issues.apache.org/jira/browse/AMBARI-2955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13753717#comment-13753717 ]
Myroslav Papirkovskyy commented on AMBARI-2955:
-----------------------------------------------
+1
> Change Host Role Command ordering for cluster in HA mode
> --------------------------------------------------------
>
> Key: AMBARI-2955
> URL: https://issues.apache.org/jira/browse/AMBARI-2955
> Project: Ambari
> Issue Type: Task
> Components: controller
> Affects Versions: 1.4.1
> Reporter: Oleksandr Diachenko
> Assignee: Oleksandr Diachenko
> Fix For: 1.4.1
>
> Attachments: AMBARI-2955.patch
>
>
> 1. *JN needs to be up before NN in HA mode*
> Otherwise following exception is raised,
> 2013-07-31 17:22:24,632 WARN namenode.FSEditLog (JournalSet.java:selectInputStreams(254)) - Unable to determine input streams from QJM to [192.168.56.101:8485]. Skipping.
> java.io.IOException: Timed out waiting 20000ms for a quorum of nodes to respond.
> 2. *Zookeeper should be up before NN in HA mode*
> 3. *ZKFC should start after NN*
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