Sergey Shelukhin created HBASE-21757:
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Summary: retrying to close a region incorrectly resets its RIT age
metric
Key: HBASE-21757
URL: https://issues.apache.org/jira/browse/HBASE-21757
Project: HBase
Issue Type: Bug
Affects Versions: 3.0.0
Reporter: Sergey Shelukhin
We have a region stuck in RIT forever due to some other bug that I will file
later.
Every 10 minutes it does the typical split-brain retry; I noticed that this
retry resets the region's RIT age, so the "oldest RIT" metric never becomes
larger than ~10mins even though the region has been stuck for days.
{noformat}
2019-01-22 10:40:52,993 INFO [PEWorker-10] assignment.RegionStateStore:
pid=1865 updating hbase:meta row=region, regionState=CLOSING,
regionLocation=server,17020,1547824687684
2019-01-22 10:40:53,025 WARN [PEWorker-10]
assignment.RegionRemoteProcedureBase: Can not add remote operation pid=29297,
ppid=1865, state=RUNNABLE, hasLock=true;
org.apache.hadoop.hbase.master.assignment.CloseRegionProcedure for region
{ENCODED => region, ...} to server server,17020,1547824687684, this usually
because the server is alread dead, give up and mark the procedure as complete,
the parent procedure will take care of this.
2019-01-22 10:40:53,040 INFO [PEWorker-10] procedure2.ProcedureExecutor:
Finished subprocedure(s) of pid=1865,
state=RUNNABLE:REGION_STATE_TRANSITION_CONFIRM_CLOSED, hasLock=true;
TransitRegionStateProcedure table=table, region=region, REOPEN/MOVE; resume
parent processing.
2019-01-22 10:40:53,040 WARN [PEWorker-7]
assignment.TransitRegionStateProcedure: Failed transition, suspend 600secs
pid=1865, state=RUNNABLE:REGION_STATE_TRANSITION_CLOSE, hasLock=true;
TransitRegionStateProcedure table=table, region=region, REOPEN/MOVE;
rit=CLOSING, location=server,17020,1547824687684; waiting on rectified
condition fixed by other Procedure or operator intervention
2019-01-22 10:40:53,040 INFO [PEWorker-7] procedure2.TimeoutExecutorThread:
ADDED pid=1865, state=WAITING_TIMEOUT:REGION_STATE_TRANSITION_CLOSE,
hasLock=true; TransitRegionStateProcedure table=table, region=region,
REOPEN/MOVE; timeout=600000, timestamp=1548183053040
{noformat}
!image-2019-01-22-11-00-39-030.png!
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