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From "Jaimin D Jetly (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-3555) Reassign Master (namenode HA): HDFS service check fails when standby namenode is stopped before wizard
Date Mon, 21 Oct 2013 02:31:42 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-3555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13800316#comment-13800316
] 

Jaimin D Jetly commented on AMBARI-3555:
----------------------------------------

The patch adds one more  manual command in the manual step of the wizard: _"sudo su -l hdfs
-c 'hdfs zkfc -formatZK' "_ 
This also removes stop namenode command from step-4 which was introduced as a requirement
in AMBARI-3526.

> Reassign Master (namenode HA): HDFS service check fails when standby namenode is stopped
before wizard
> ------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-3555
>                 URL: https://issues.apache.org/jira/browse/AMBARI-3555
>             Project: Ambari
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 1.4.2
>            Reporter: Jaimin D Jetly
>            Assignee: Jaimin D Jetly
>             Fix For: 1.4.2
>
>         Attachments: AMBARI-3555.patch
>
>
> HDFS service check fails due to stale information preserved in zookeeper. We need to
clear automatic failover information in zookeeper by adding a manual command. Also if this
is done then we don't need to make sure that the namenode that is moved is in standby state
by stopping namenode initially. 



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