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https://issues.apache.org/jira/browse/HBASE-7698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13572757#comment-13572757
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Jimmy Xiang commented on HBASE-7698:
------------------------------------
Maybe we move cleanupFailedOpen to the final block as well. Both are for clean
up after some issues, which sounds to me better to be in the final block so
that it's done all the time if not open successfully.
We can address this in a separate jira if you prefer.
> 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: ramkrishna.s.vasudevan
> Fix For: 0.96.0, 0.94.5
>
> Attachments: HBASE-7698_0.94.patch, HBASE-7698.patch,
> HBASE-7698_trunk_final.patch, HBASE-7698_withtestcase_1.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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