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https://issues.apache.org/jira/browse/HBASE-8912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13858702#comment-13858702
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ramkrishna.s.vasudevan commented on HBASE-8912:
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Will take a look once again. Infact checked the change that you made.
Initially we decided to do that change and always avoided it just because in
some cases we were getting some double assignments.
Thanks Lars.
> [0.94] AssignmentManager throws IllegalStateException from PENDING_OPEN to
> OFFLINE
> ----------------------------------------------------------------------------------
>
> Key: HBASE-8912
> URL: https://issues.apache.org/jira/browse/HBASE-8912
> Project: HBase
> Issue Type: Bug
> Reporter: Enis Soztutar
> Priority: Critical
> Fix For: 0.94.16
>
> Attachments: 8912-0.94-alt2.txt, 8912-0.94.txt, HBase-0.94 #1036 test
> - testRetrying [Jenkins].html, log.txt,
> org.apache.hadoop.hbase.catalog.TestMetaReaderEditor-output.txt
>
>
> AM throws this exception which subsequently causes the master to abort:
> {code}
> java.lang.IllegalStateException: Unexpected state :
> testRetrying,jjj,1372891751115.9b828792311001062a5ff4b1038fe33b.
> state=PENDING_OPEN, ts=1372891751912,
> server=hemera.apache.org,39064,1372891746132 .. Cannot transit it to OFFLINE.
> at
> org.apache.hadoop.hbase.master.AssignmentManager.setOfflineInZooKeeper(AssignmentManager.java:1879)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1688)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1424)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1399)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1394)
> at
> org.apache.hadoop.hbase.master.handler.ClosedRegionHandler.process(ClosedRegionHandler.java:105)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:175)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
> at java.lang.Thread.run(Thread.java:662)
> {code}
> This exception trace is from the failing test TestMetaReaderEditor which is
> failing pretty frequently, but looking at the test code, I think this is not
> a test-only issue, but affects the main code path.
> https://builds.apache.org/job/HBase-0.94/1036/testReport/junit/org.apache.hadoop.hbase.catalog/TestMetaReaderEditor/testRetrying/
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