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https://issues.apache.org/jira/browse/HBASE-14392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14947166#comment-14947166
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stack commented on HBASE-14392:
-------------------------------
Thanks for the input [~sebastianco]
> [tests] TestLogRollingNoCluster fails on master from time to time
> -----------------------------------------------------------------
>
> Key: HBASE-14392
> URL: https://issues.apache.org/jira/browse/HBASE-14392
> Project: HBase
> Issue Type: Bug
> Components: test
> Reporter: stack
> Assignee: stack
> Fix For: 2.0.0, 1.2.0, 1.3.0
>
> Attachments: 14392.txt, 14392.txt, 14392v2.txt, 14392v2.txt,
> 14392v2.txt
>
>
> TestLogRollingNoCluster fails from time to time on a rig I have running here.
> Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m;
> support was removed in 8.0
> Running org.apache.hadoop.hbase.regionserver.wal.TestLogRollingNoCluster
> Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.155 sec -
> in org.apache.hadoop.hbase.regionserver.wal.TestLogRollingNoCluster
> Results :
> Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
> The test itself is a bit odd. We apparently have seen NPEs around close of a
> WAL while trying to sync... which I suppose makes sense if two threads
> involved.
> Attached patch just fails the sync silently if stream is null... lets presume
> it a close. Adds a sync on write of trailer too...
> This patch seems to have gotten rid of the odd failure seen on a particular
> box here if I keep cycling the test.
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