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From "Himanshu Vashishtha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7723) Remove NameNode URI from ZK splitlogs
Date Wed, 06 Mar 2013 01:13:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13594198#comment-13594198
] 

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

Thanks Jeffrey. I haven't look at the trunk patch yet.  QA bot also reported that failure
for trunk.
Lars: yes, I usually try to follow the trunk->0.94 approach... somehow didn't do it for
this one. Sorry.
                
> Remove NameNode 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: 0.95.0, 0.94.6
>            Reporter: Kevin Odell
>            Assignee: Himanshu Vashishtha
>             Fix For: 0.95.0, 0.98.0, 0.94.6
>
>         Attachments: 7723-0.94-minimal.txt, 7723-0.94-simple.txt, HBASE-7723-94.patch,
HBASE-7723-94-v2.patch, HBASE-7723-94-v3.patch, HBASE-7723-94-v4.patch, HBASE-7723-94-v5.patch,
HBASE-7723-trunk-v1.patch, HBASE-7723-trunk-v2.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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