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https://issues.apache.org/jira/browse/AMBARI-2955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleksandr Diachenko resolved AMBARI-2955.
-----------------------------------------
Resolution: Fixed
Commited to trunk.
> 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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