Andrey Elenskiy created HBASE-18066:
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             Summary: Get with closest_row_before on "hbase:meta" can return 
empty Cell during region merge/split
                 Key: HBASE-18066
                 URL: https://issues.apache.org/jira/browse/HBASE-18066
             Project: HBase
          Issue Type: Bug
          Components: hbase, regionserver
    Affects Versions: 1.3.1
         Environment: Linux (16.04.2), MacOS 10.11.6.
Standalone and distributed HBase setup.
            Reporter: Andrey Elenskiy


During region split/merge there's a brief period of time where doing a "Get" 
with "closest_row_before=true" on "hbase:meta" may return empty 
"GetResponse.result.cell" field even though parent, splitA and splitB regions 
are all in "hbase:meta". Both gohbase (https://github.com/tsuna/gohbase) and 
AsyncHBase (https://github.com/OpenTSDB/asynchbase) interprets this as 
"TableDoesNotExist" which is returned to the client.

Here's a gist that reproduces this problem: 
https://gist.github.com/Timoha/c7a236b768be9220e85e53e1ca53bf96. Note that you 
have to use older HTable client (I used 1.2.4) as current versions ignore 
`Get.setClosestRowBefore(bool)` option.



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