Sergey Shelukhin created HBASE-7698:
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Summary: 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
Reporter: Sergey Shelukhin
Assignee: Sergey Shelukhin
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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