John Sherman created HIVE-26584:
-----------------------------------

             Summary: compressed_skip_header_footer_aggr.q is flaky
                 Key: HIVE-26584
                 URL: https://issues.apache.org/jira/browse/HIVE-26584
             Project: Hive
          Issue Type: Bug
          Components: HiveServer2
    Affects Versions: 4.0.0-alpha-2
            Reporter: John Sherman
            Assignee: John Sherman


One of my PRs compressed_skip_header_footer_aggr.q  was failing with unexpected 
diff. Such as:
{code:java}
 TestMiniLlapLocalCliDriver.testCliDriver:62 Client Execution succeeded but 
contained differences (error code = 1) after executing 
compressed_skip_header_footer_aggr.q
69,71c69,70
< 1 2019-12-31
< 2 2018-12-31
< 3 2017-12-31
---
> 2 2019-12-31
> 3 2019-12-31
89d87
< NULL  NULL
91c89
< 2 2018-12-31
---
> 2 2019-12-31
100c98
< 1
---
> 2
109c107
< 1 2019-12-31
---
> 2 2019-12-31
127,128c125,126
< 1 2019-12-31
< 3 2017-12-31
---
> 2 2019-12-31
> 3 2019-12-31
146a145
> 2 2019-12-31
155c154
< 1
---
> 2 {code}

Investigating it, it did not seem to fail when executed locally. Since I 
suspected test interference I searched for the tablenames/directories used and 
discovered empty_skip_header_footer_aggr.q which uses the same table names AND 
external directories.



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