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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2018/09/20 23:27:00 UTC
[jira] [Commented] (HBASE-21213) [hbck2] Need more cleanup needed
on bypass; old Procedure left in RegionStateNodes
[ https://issues.apache.org/jira/browse/HBASE-21213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16622864#comment-16622864 ]
stack commented on HBASE-21213:
-------------------------------
I see that [~allan163] had noted in the Procedure#bypass that "If your Procedure has set state, it needs to undo it in here." RegionTransactionProcedure is one such case.
> [hbck2] Need more cleanup needed on bypass; old Procedure left in RegionStateNodes
> ----------------------------------------------------------------------------------
>
> Key: HBASE-21213
> URL: https://issues.apache.org/jira/browse/HBASE-21213
> Project: HBase
> Issue Type: Bug
> Components: amv2, hbck2
> Reporter: stack
> Assignee: stack
> Priority: Major
> Fix For: 2.1.1
>
>
> This is a follow-on from HBASE-21083 which added the 'bypass' functionality. On bypass, there is more state to be cleared if we are allow new Procedures to be scheduled.
> For example, here is a bypass:
> {code}
> 2018-09-20 05:45:43,722 INFO org.apache.hadoop.hbase.procedure2.Procedure: pid=100449, state=RUNNABLE:REGION_TRANSITION_DISPATCH, locked=true, bypass=LOG-REDACTED UnassignProcedure table=hbase:namespace, region=37cc206fe9c4bc1c0a46a34c5f523d16, server=ve1233.halxg.cloudera.com,22101,1537397961664 bypassed, returning null to finish it
> 2018-09-20 05:45:44,022 INFO org.apache.hadoop.hbase.procedure2.ProcedureExecutor: Finished pid=100449, state=SUCCESS, bypass=LOG-REDACTED UnassignProcedure table=hbase:namespace, region=37cc206fe9c4bc1c0a46a34c5f523d16, server=ve1233.halxg.cloudera.com,22101,1537397961664 in 2mins, 7.618sec
> {code}
> ... but then when I try to assign the bypassed region later, I get this:
> {code}
> 2018-09-20 05:46:31,435 WARN org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure: There is already another procedure running on this region this=pid=100450, state=RUNNABLE:REGION_TRANSITION_QUEUE, locked=true; AssignProcedure table=hbase:namespace, region=37cc206fe9c4bc1c0a46a34c5f523d16 owner=pid=100449, state=SUCCESS, bypass=LOG-REDACTED UnassignProcedure table=hbase:namespace, region=37cc206fe9c4bc1c0a46a34c5f523d16, server=ve1233.halxg.cloudera.com,22101,1537397961664 pid=100450, state=RUNNABLE:REGION_TRANSITION_QUEUE, locked=true; AssignProcedure table=hbase:namespace, region=37cc206fe9c4bc1c0a46a34c5f523d16; rit=OPENING, location=ve1233.halxg.cloudera.com,22101,1537397961664
> 2018-09-20 05:46:31,510 INFO org.apache.hadoop.hbase.procedure2.ProcedureExecutor: Rolled back pid=100450, state=ROLLEDBACK, exception=org.apache.hadoop.hbase.procedure2.ProcedureAbortedException via AssignProcedure:org.apache.hadoop.hbase.procedure2.ProcedureAbortedException: There is already another procedure running on this region this=pid=100450, state=RUNNABLE:REGION_TRANSITION_QUEUE, locked=true; AssignProcedure table=hbase:namespace, region=37cc206fe9c4bc1c0a46a34c5f523d16 owner=pid=100449, state=SUCCESS, bypass=LOG-REDACTED UnassignProcedure table=hbase:namespace, region=37cc206fe9c4bc1c0a46a34c5f523d16, server=ve1233.halxg.cloudera.com,22101,1537397961664; AssignProcedure table=hbase:namespace, region=37cc206fe9c4bc1c0a46a34c5f523d16 exec-time=473msec
> {code}
> ... which is a long-winded way of saying the Unassign Procedure still exists still in RegionStateNodes.
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