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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4479) In branch-1, logSync() may be called with the FSNamesystem lock held in commitBlockSynchronization
Date Fri, 08 Feb 2013 02:21:13 GMT
Jing Zhao created HDFS-4479:
-------------------------------

             Summary: In branch-1, logSync() may be called with the FSNamesystem lock held
in commitBlockSynchronization
                 Key: HDFS-4479
                 URL: https://issues.apache.org/jira/browse/HDFS-4479
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Jing Zhao
            Assignee: Jing Zhao


In FSNamesystem#commitBlockSynchronization of branch-1, logSync() may be called when the FSNamesystem
lock is held. Similar with HDFS-4186, this may cause some performance issue.

Since logSync is called right after the synchronization section, we can simply remove the
logSync call.

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