Xiaolin Ha created HBASE-25709:
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             Summary: Close region may stuck when region is compacting and 
skipping most cells read
                 Key: HBASE-25709
                 URL: https://issues.apache.org/jira/browse/HBASE-25709
             Project: HBase
          Issue Type: Improvement
          Components: Compaction
    Affects Versions: 1.4.13
            Reporter: Xiaolin Ha
            Assignee: Xiaolin Ha
         Attachments: Master-UI-RIT.png, RS-UI.png, RS-region-state.png

We found in our cluster about stop region stuck. The region is compacting, and 
its store files has many TTL expired cells. Close region state 
marker(HRegion#writestate.writesEnabled) is not checked in compaction, because 
most cells were skipped. 

!RS-region-state.png|width=698,height=310!

 

!Master-UI-RIT.png|width=693,height=157!

 

HBASE-23968 has encountered similar problem, but the solution in it is outer 
the method

InternalScanner#next(List<Cell> result, ScannerContext scannerContext), which 
will not return if there are many skipped cells, for current compaction scanner 
context.

 

 

 



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