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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14392) [tests] TestLogRollingNoCluster fails on master from time to time
Date Wed, 07 Oct 2015 16:34:26 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14947166#comment-14947166
] 

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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