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Posted to issues@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2013/01/10 19:56:16 UTC
[jira] [Updated] (HBASE-7531) [replication] NPE in
SequenceFileLogReader because ReplicationSource doesn't nullify the reader
[ https://issues.apache.org/jira/browse/HBASE-7531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans updated HBASE-7531:
--------------------------------------
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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