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https://issues.apache.org/jira/browse/HBASE-7531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Daniel Cryans updated HBASE-7531:
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Attachment: HBASE-7531.patch
Just a simple fix, setting the reader to null if we couldn't get it.
> [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
> 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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