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https://issues.apache.org/jira/browse/HDFS-1207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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dhruba borthakur resolved HDFS-1207.
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Fix Version/s: 0.20-append
Resolution: Fixed
I just committed this. Thanks Todd!
> 0.20-append: stallReplicationWork should be volatile
> ----------------------------------------------------
>
> Key: HDFS-1207
> URL: https://issues.apache.org/jira/browse/HDFS-1207
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.20-append
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.20-append
>
> Attachments: hdfs-1207.txt
>
>
> the stallReplicationWork member in FSNamesystem is accessed by multiple
> threads without synchronization, but isn't marked volatile. I believe this is
> responsible for about 1% failure rate on
> TestFileAppend4.testAppendSyncChecksum* on my 8-core test boxes (looking at
> logs I see replication happening even though we've supposedly disabled it)
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