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From "Huaxiang Sun (Jira)" <j...@apache.org>
Subject [jira] [Created] (HBASE-24159) [flakey test] regionserver.TestRegionMergeTransactionOnCluster
Date Thu, 09 Apr 2020 19:08:00 GMT
Huaxiang Sun created HBASE-24159:

             Summary: [flakey test] regionserver.TestRegionMergeTransactionOnCluster
                 Key: HBASE-24159
                 URL: https://issues.apache.org/jira/browse/HBASE-24159
             Project: HBase
          Issue Type: Test
          Components: regionserver
    Affects Versions: 3.0.0, 2.3.0, 2.4.0
            Reporter: Huaxiang Sun
            Assignee: Hua Xiang

As reported in [https://builds.apache.org/view/H-L/view/HBase/job/HBase-Find-Flaky-Tests/job/branch-2.3/lastSuccessfulBuild/artifact/dashboard.html#job_1,] 

testCleanMergeReference fails when waiting for merge table in meta table to be cleaned.

Debugged a bit, found that this is case that state is polluted from other testing cases.


the meta table is polluted from the previous region merge test cases (tables are not deleted
after the testing case finishes). While compaction still goes on and janitor kicks in, it
will clean up the old table state and breaks the loop (cleaned > 0), so leave the state
under test never cleaned up.The solution is to delete tables after each test case.

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