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https://issues.apache.org/jira/browse/HBASE-21043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16586707#comment-16586707
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stack commented on HBASE-21043:
-------------------------------
Duh (thanks [~Apache9]).
Resolved as dupe of HBASE-20968 !
> TestShell list_procedures is flakey
> -----------------------------------
>
> Key: HBASE-21043
> URL: https://issues.apache.org/jira/browse/HBASE-21043
> Project: HBase
> Issue Type: Bug
> Components: shell, test
> Affects Versions: 2.0.1
> Reporter: stack
> Priority: Major
>
> Fails 30% of the time in list_procedures. Fails creating a Procedure then
> trying to capture shell output to confirm it sees the just-queued Procedure
> only it looks like the Procedure finishes too quickly. It works for a while
> then there are a spate of failures. Then it works again.
> Here is how it looks in test output:
> {code}
> Took 5.6355 secondsTook 0.0561 seconds...........F
> ===============================================================================
> Failure: test_list_procedures(Hbase::ListProceduresTest)
> src/test/ruby/shell/list_procedures_test.rb:65:in `block in
> test_list_procedures'
> 62: end
> 63: end
> 64:
> => 65: assert_equal(1, matching_lines)
> 66: end
> 67: end
> 68: end
> <1> expected but was
> <0>
> {code}
> Then in the log output for the test, I see this for the running of the
> Procedure:
> {code}
> 2018-08-14 00:42:50,381 DEBUG [Time-limited test]
> procedure2.ProcedureExecutor(948): Stored pid=27, state=RUNNABLE,
> hasLock=false; org.apache.hadoop.hbase.client.procedure.ShellTestProcedure
> 2018-08-14 00:42:50,397 INFO [RS-EventLoopGroup-1-10]
> ipc.ServerRpcConnection(556): Connection from 67.195.81.150:50597,
> version=2.0.2-SNAPSHOT, sasl=false, ugi=jenkins (auth:SIMPLE),
> service=MasterService
> F
> ===============================================================================
> Failure: test_list_procedures(Hbase::ListProceduresTest)
> src/test/ruby/shell/list_procedures_test.rb:65:in `block in
> test_list_procedures'
> 2018-08-14 00:42:50,586 INFO [PEWorker-16]
> procedure2.ProcedureExecutor(1316): Finished pid=27, state=SUCCESS,
> hasLock=false; org.apache.hadoop.hbase.client.procedure.ShellTestProcedure in
> 234msec
> 62: end
> 63: end
> 64:
> => 65: assert_equal(1, matching_lines)
> 66: end
> 67: end
> 68: end
> <1> expected but was
> <0>
> ===============================================================================
> {code}
> The Procedure runs successfully but the regex test on the other end of the
> Admin is not finding what it expects -- the Procedure ran in 234ms.
> Will disable in a subprocedure for now till someone has time to play w/ this.
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