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From "Xu Cang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-21846) Flaky Test: testMultiRowRangeWithFilterListOrOperatorWithBlkCnt
Date Tue, 05 Feb 2019 09:31:00 GMT
Xu Cang created HBASE-21846:
-------------------------------

             Summary: Flaky Test: testMultiRowRangeWithFilterListOrOperatorWithBlkCnt
                 Key: HBASE-21846
                 URL: https://issues.apache.org/jira/browse/HBASE-21846
             Project: HBase
          Issue Type: Bug
    Affects Versions: 1.5.0, 1.3.0
            Reporter: Xu Cang


Flaky test:
[ERROR]   TestFilterListOrOperatorWithBlkCnt.testMultiRowRangeWithFilterListOrOperatorWithBlkCnt:127
expected:<4> but was:<5>


Added some debugging logs and test result as below:
1028 2019-02-05 01:14:13,525 INFO  [main] filter.TestFilterListOrOperatorWithBlkCnt(118):
0. blocksStart: 0
1029 2019-02-05 01:14:13,572 INFO  [main] filter.TestFilterListOrOperatorWithBlkCnt(121):
found 20 results
1030 2019-02-05 01:14:13,572 INFO  [main] filter.TestFilterListOrOperatorWithBlkCnt(124):
1. Diff in number of blocks 3 blocksEnd is: 3 blocksStart: 0
1031 2019-02-05 01:14:13,573 INFO  [main] filter.TestFilterListOrOperatorWithBlkCnt(129):
2. Diff in number of blocks 4 blocksEnd is: 4 blocksStart: 0
1032 2019-02-05 01:14:13,576 INFO  [main] filter.TestFilterListOrOperatorWithBlkCnt(136):
3. Diff in number of blocks 5 blocksEnd is: 5 blocksStart: 0

Basically,in my testing environment the scan with filterList read 3 blocks. Latter 2 scans
read 1 respectively. 

According to this flaky tests list:https://builds.apache.org/view/H-L/view/HBase/job/HBase-Find-Flaky-Tests/job/branch-1/lastSuccessfulBuild/artifact/dashboard.html
This test is always failing.





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