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Eli Collins commented on HDFS-4030: ----------------------------------- Thanks ATM. I've committed this to trunk. Leaving this open until I can merge to branch-2 (which is currently broken). > BlockManager excessBlocksCount and postponedMisreplicatedBlocksCount should > be AtomicLongs > ------------------------------------------------------------------------------------------ > > Key: HDFS-4030 > URL: https://issues.apache.org/jira/browse/HDFS-4030 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: namenode > Affects Versions: 2.0.0-alpha > Reporter: Eli Collins > Assignee: Eli Collins > Attachments: hdfs-4030.txt, hdfs-4030.txt > > > The BlockManager excessBlocksCount and postponedMisreplicatedBlocksCount > fields are currently volatile longs which are incremented, which isn't thread > safe. It looks like they're always incremented on paths that hold the NN > write lock but it would be easier and less error prone for future changes if > we made them AtomicLongs. The other volatile long members are just set in one > thread and read in another so they're fine as is. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira