[jira] [Created] (HBASE-14392) [tests] TestLogRollingNoCluster fails on master from time to time

["stack (JIRA)" <ji...@apache.org>]

stack created HBASE-14392:
-----------------------------

             Summary: [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


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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