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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HBASE-7531) [replication] NPE in SequenceFileLogReader because ReplicationSource doesn't nullify the reader
Date Thu, 10 Jan 2013 18:56:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jean-Daniel Cryans reassigned HBASE-7531:
-----------------------------------------

    Assignee: Jean-Daniel Cryans
    
> [replication] NPE in SequenceFileLogReader because ReplicationSource doesn't nullify
the reader
> -----------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7531
>                 URL: https://issues.apache.org/jira/browse/HBASE-7531
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>         Attachments: HBASE-7531.patch
>
>
> Here's a NPE I get half the time I run TestReplication:
> {noformat}
> 2012-12-20 08:59:17,259 ERROR [RegionServer:1;192.168.10.135,49168,1356011734418-EventThread.replicationSource,2]
regionserver.ReplicationSource$1(727): Unexpected exception in ReplicationSource, currentPath=hdfs://localhost:65533/user/jdcryans/hbase/.logs/192.168.10.135,49168,1356011734418/192.168.10.135%2C49168%2C1356011734418.1356011956626
> java.lang.NullPointerException
>         at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.seek(SequenceFileLogReader.java:261)
>         at org.apache.hadoop.hbase.replication.regionserver.ReplicationHLogReaderManager.seek(ReplicationHLogReaderManager.java:103)
>         at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.readAllEntriesToReplicateOrNextFile(ReplicationSource.java:414)
>         at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:332)
> {noformat}
> The issue happens after an IOE was caught while opening the reader, the issue is that
it isn't set to null after that then the rest of the code assumes the reader is usable.

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