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From "Jieshan Bean (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8230) Possible NPE on regionserver abort if replication service has not been started
Date Sun, 31 Mar 2013 01:27:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13618204#comment-13618204

Jieshan Bean commented on HBASE-8230:

Any exception occures before startServiceThreads may cause this NPE, right?  so "what caused
the log writer creation failure" is not the key point, I think.
> Possible NPE on regionserver abort if replication service has not been started
> ------------------------------------------------------------------------------
>                 Key: HBASE-8230
>                 URL: https://issues.apache.org/jira/browse/HBASE-8230
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver, Replication
>    Affects Versions: 0.94.6
>            Reporter: Jieshan Bean
>            Assignee: Jieshan Bean
>         Attachments: HBASE-8230-94.patch
> RegionServer got Exception on calling setupWALAndReplication, so entered abort flow.
Since replicationSink had not been inialized yet, we got below exception:
> {noformat}
> Exception in thread "regionserver26003" java.lang.NullPointerException
>  at org.apache.hadoop.hbase.replication.regionserver.Replication.join(Replication.java:129)
>  at org.apache.hadoop.hbase.replication.regionserver.Replication.stopReplicationService(Replication.java:120)
>  at org.apache.hadoop.hbase.regionserver.HRegionServer.join(HRegionServer.java:1803)
>  at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:834)
>  at java.lang.Thread.run(Thread.java:662)
> {noformat}

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