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From "Himanshu Vashishtha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7723) Remove NN URI from ZK splitlogs.
Date Sat, 02 Feb 2013 16:38:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569585#comment-13569585
] 

Himanshu Vashishtha commented on HBASE-7723:
--------------------------------------------

Thanks for looking Matteo. 

The latest trunk patch keeps the current behavior whether it is oldlogs, or logs. It only
removes the rootdir from the path. In case if it removes that directory too, then how would
you determine whether the logs are in .logs, or .oldlogs.
                
> Remove NN URI from ZK splitlogs.
> --------------------------------
>
>                 Key: HBASE-7723
>                 URL: https://issues.apache.org/jira/browse/HBASE-7723
>             Project: HBase
>          Issue Type: Bug
>          Components: hadoop2, master
>    Affects Versions: 0.92.0
>            Reporter: Kevin Odell
>            Assignee: Himanshu Vashishtha
>             Fix For: 0.96.0, 0.94.6
>
>         Attachments: HBASE-7723-94.patch, HBASE-7723-94-v2.patch, HBASE-7723-94-v3.patch,
HBASE-7723-94-v4.patch, HBASE-7723-trunk-v1.patch, HBASE-7723-trunk-v2.patch
>
>
> When moving to HDFS HA or removing HA we end up changing the NN namespace.  This can
cause the HMaster not to start up fully due to trying to split phantom HLogs pointing to the
wrong FS - java.lang.IllegalArgumentException: Wrong FS: error messages.  The HLogs in question
might not even be on HDFS anymore.  You have to go in a manually clear out the ZK splitlogs
directory to get HBase to properly boot up.

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