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https://issues.apache.org/jira/browse/HBASE-23668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Stack resolved HBASE-23668.
-----------------------------------
Hadoop Flags: Reviewed
Assignee: Michael Stack
Resolution: Fixed
Merged to branch-2+. Thanks for review [~zhangduo] (reopen to add your UT?).
> Master log start filling with "Flush journal status" messages
> -------------------------------------------------------------
>
> Key: HBASE-23668
> URL: https://issues.apache.org/jira/browse/HBASE-23668
> Project: HBase
> Issue Type: Improvement
> Components: proc-v2, RegionProcedureStore
> Reporter: Michael Stack
> Assignee: Michael Stack
> Priority: Major
> Fix For: 3.0.0, 2.3.0
>
>
> Takes a while to get into this condition. Not each to tell how because all
> logs have rolled off and I only have logs filled w/ below:
> {code}
> 2020-01-09 07:01:01,723 DEBUG org.apache.hadoop.hbase.regionserver.HRegion:
> Flush status journal:
> Acquiring readlock on region at 1578553261723
> Flush successful flush result:CANNOT_FLUSH_MEMSTORE_EMPTY,
> failureReason:Nothing to flush,flush seq id45226854 at 1578553261723
> 2020-01-09 07:01:01,723 DEBUG org.apache.hadoop.hbase.regionserver.HRegion:
> Flush status journal:
> Acquiring readlock on region at 1578553261723
> Flush successful flush result:CANNOT_FLUSH_MEMSTORE_EMPTY,
> failureReason:Nothing to flush,flush seq id45226855 at 1578553261723
> 2020-01-09 07:01:01,723 DEBUG org.apache.hadoop.hbase.regionserver.HRegion:
> Flush status journal:
> Acquiring readlock on region at 1578553261723
> Flush successful flush result:CANNOT_FLUSH_MEMSTORE_EMPTY,
> failureReason:Nothing to flush,flush seq id45226856 at 1578553261723
> 2020-01-09 07:01:01,723 DEBUG org.apache.hadoop.hbase.regionserver.HRegion:
> Flush status journal:
> Acquiring readlock on region at 1578553261723
> Flush successful flush result:CANNOT_FLUSH_MEMSTORE_EMPTY,
> failureReason:Nothing to flush,flush seq id45226857 at 1578553261723
> {code}
> ... I added the printing of flushresult... i.e. cannot flush because store is
> empty.
> Digging.
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