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https://issues.apache.org/jira/browse/HBASE-21490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16690885#comment-16690885
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Duo Zhang commented on HBASE-21490:
-----------------------------------
UT to reproduce the problem.
And also found a typo in WALProcedureStore, forgot to update the tracker
variable in the loop at the end of buildHoldingCleanupTracker...
> WALProcedure may remove proc wal files still with active procedures
> -------------------------------------------------------------------
>
> Key: HBASE-21490
> URL: https://issues.apache.org/jira/browse/HBASE-21490
> Project: HBase
> Issue Type: Sub-task
> Components: proc-v2
> Reporter: Duo Zhang
> Priority: Major
> Attachments: HBASE-21490-UT.patch
>
>
> It happens for me several times. After master restart, all the procedures are
> gone.
> And the proc wal files were deleted before restarting, I see this in the
> master's log
> {noformat}
> 2018-11-16,20:57:40,177 INFO [WALProcedureStoreSyncThread]
> org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore: Remove all
> state logs with ID less than 184, since all the active procedures are in the
> latest log
> 2018-11-16,20:57:40,177 INFO [WALProcedureStoreSyncThread]
> org.apache.hadoop.hbase.procedure2.store.wal.ProcedureWALFile: Archiving
> hdfs://c4tst-xiaomi/hbase/c4tst-sync1/MasterProcWALs/pv2-00000000000000000184.log
> to hdfs://c4tst-xiaomi/hbase/c4tst-sync1/oldWALs/pv2-00000000000000000184.log
> {noformat}
> Let me dig...
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