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https://issues.apache.org/jira/browse/HBASE-20492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16453246#comment-16453246
]
Umesh Agashe commented on HBASE-20492:
--------------------------------------
Can not abort hung procedure and restarting master doesn't help.
> UnassignProcedure is stuck in retry loop on region stuck in OPENING state
> -------------------------------------------------------------------------
>
> Key: HBASE-20492
> URL: https://issues.apache.org/jira/browse/HBASE-20492
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: Umesh Agashe
> Priority: Major
> Fix For: 2.0.1
>
>
> UnassignProcedure gets stuck in a retry loop for a region stuck in OPENING
> state. From logs:
> {code:java}
> 2018-04-25 15:59:53,825 WARN
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure:
> Retryable error trying to transition: pid=142564,
> state=RUNNABLE:REGION_TRANSITION_DISPATCH; UnassignProcedure
> table=IntegrationTestBigLinkedList_20180331004141,
> region=bd2fb2c7d39236c9b9085f350358df7c,
> server=vb1122.halxg.cloudera.com,22101,1522626198450; rit=OPENING,
> location=vb1122.halxg.cloudera.com,22101,1522626198450
> org.apache.hadoop.hbase.exceptions.UnexpectedStateException: Expected
> [SPLITTING, SPLIT, MERGING, OPEN, CLOSING] so could move to CLOSING but
> current state=OPENING
> at
> org.apache.hadoop.hbase.master.assignment.RegionStates$RegionStateNode.transitionState(RegionStates.java:158)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.markRegionAsClosing(AssignmentManager.java:1514)
> at
> org.apache.hadoop.hbase.master.assignment.UnassignProcedure.updateTransition(UnassignProcedure.java:179)
> at
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.execute(RegionTransitionProcedure.java:309)
> at
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.execute(RegionTransitionProcedure.java:85)
> at org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:845)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1458)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1227)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$800(ProcedureExecutor.java:78)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1738)
> 2018-04-25 15:59:53,892 WARN
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure:
> Retryable error trying to transition: pid=142564,
> state=RUNNABLE:REGION_TRANSITION_DISPATCH; UnassignProcedure
> table=IntegrationTestBigLinkedList_20180331004141,
> region=bd2fb2c7d39236c9b9085f350358df7c,
> server=vb1122.halxg.cloudera.com,22101,1522626198450; rit=OPENING,
> location=vb1122.halxg.cloudera.com,22101,1522626198450
> org.apache.hadoop.hbase.exceptions.UnexpectedStateException: Expected
> [SPLITTING, SPLIT, MERGING, OPEN, CLOSING] so could move to CLOSING but
> current state=OPENING
> at
> org.apache.hadoop.hbase.master.assignment.RegionStates$RegionStateNode.transitionState(RegionStates.java:158)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.markRegionAsClosing(AssignmentManager.java:1514)
> at
> org.apache.hadoop.hbase.master.assignment.UnassignProcedure.updateTransition(UnassignProcedure.java:179)
> at
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.execute(RegionTransitionProcedure.java:309)
> at
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.execute(RegionTransitionProcedure.java:85)
> at org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:845)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1458)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1227)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$800(ProcedureExecutor.java:78)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1738){code}
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