[jira] [Created] (KUDU-2976) MoveTabletParamTest.Test is flaky

["Alexey Serbin (Jira)" <ji...@apache.org>]

Alexey Serbin created KUDU-2976:
-----------------------------------

             Summary: MoveTabletParamTest.Test is flaky
                 Key: KUDU-2976
                 URL: https://issues.apache.org/jira/browse/KUDU-2976
             Project: Kudu
          Issue Type: Bug
          Components: test
            Reporter: Alexey Serbin
         Attachments: kudu-admin-test.7.txt.xz

The test in {{EnableKudu1097AndDownTS/MoveTabletParamTest.Test/0}} configuration sometime fails with the following error message:

{noformat}
src/kudu/tools/kudu-admin-test.cc:390: Failure
Value of: s.ok()
  Actual: false
Expected: true
Runtime error: kudu: process exited with non-zero status
 1
stdout: 
stderr: W1016 04:31:50.112155  2734 flags.cc:404] Enabled unsafe flag: --never_fsync=true
Illegal state: Leader has not yet committed an operation in its own term
{noformat}

To fix, it's necessary to make sure the newly elected leader commits at least one Raft transaction on its term (e.g. something similar to what {{WaitForLeaderWithCommittedOp}} does).  One option is to perform a DDL operation (e.g. add a column) before attempting Raft configuration change corresponding to the replica movement.

I attached the full log of a run where the test scenario failed.



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