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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7723) Remove NN URI from ZK splitlogs.
Date Thu, 31 Jan 2013 21:39:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13568135#comment-13568135

Ted Yu commented on HBASE-7723:

Here is another failure:

testVanishingTaskZNode(org.apache.hadoop.hbase.master.TestSplitLogManager)  Time elapsed:
15.048 sec  <<< FAILURE!
  at org.junit.Assert.fail(Assert.java:92)
  at org.junit.Assert.assertTrue(Assert.java:43)
  at org.junit.Assert.assertTrue(Assert.java:54)
  at org.apache.hadoop.hbase.master.TestSplitLogManager.waitForCounter(TestSplitLogManager.java:154)
  at org.apache.hadoop.hbase.master.TestSplitLogManager.waitForCounter(TestSplitLogManager.java:134)
  at org.apache.hadoop.hbase.master.TestSplitLogManager.testVanishingTaskZNode(TestSplitLogManager.java:474)
> 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
>         Attachments: HBASE-7723-94.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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