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https://issues.apache.org/jira/browse/HBASE-7698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13570430#comment-13570430
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Sergey Shelukhin commented on HBASE-7698:
-----------------------------------------
Hmm... does this actually set the external variable?
> race between RS shutdown thread and openregionhandler causes region to get
> stuck
> --------------------------------------------------------------------------------
>
> Key: HBASE-7698
> URL: https://issues.apache.org/jira/browse/HBASE-7698
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.4
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Fix For: 0.96.0, 0.94.6
>
> Attachments: HBASE-7698.patch, HBASE-7698_withtestcase_1.patch,
> HBASE-7698_withtestcase.patch
>
>
> 2013-01-22 17:59:03,237 INFO [Shutdown of
> org.apache.hadoop.hbase.fs.HFileSystem@5984cf08]
> hbase.MiniHBaseCluster$SingleFileSystemShutdownThread(186): Hook closing
> fs=org.apache.hadoop.hbase.fs.HFileSystem@5984cf08
> ...
> 2013-01-22 17:59:03,411 DEBUG
> [RS_OPEN_REGION-10.11.2.92,50661,1358906192942-0] regionserver.HRegion(1001):
> Closing
> IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb.:
> disabling compactions & flushes
> 2013-01-22 17:59:03,411 DEBUG
> [RS_OPEN_REGION-10.11.2.92,50661,1358906192942-0] regionserver.HRegion(1023):
> Updates disabled for region
> IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb.
> 2013-01-22 17:59:03,415 ERROR
> [RS_OPEN_REGION-10.11.2.92,50661,1358906192942-0] executor.EventHandler(205):
> Caught throwable while processing event M_RS_OPEN_REGION
> java.io.IOException: java.io.IOException: java.io.IOException: Filesystem
> closed
> at
> org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1058)
> at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:974)
> at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:945)
> at
> org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.cleanupFailedOpen(OpenRegionHandler.java:459)
> at
> org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:143)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:202)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:680)
> tryTransitionFromOpeningToFailedOpen or transitionToOpened below is never
> called and region can get stuck.
> As an added benefit, the meta is already written by that time.
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