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From "Maximilian Michels (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3607) Decrease default forkCount for tests
Date Fri, 11 Mar 2016 14:58:57 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15191035#comment-15191035
] 

Maximilian Michels commented on FLINK-3607:
-------------------------------------------

Just saw that the default in tools/travis_mvn_watchdog.sh is 2 for flink.forkCount.

> Decrease default forkCount for tests
> ------------------------------------
>
>                 Key: FLINK-3607
>                 URL: https://issues.apache.org/jira/browse/FLINK-3607
>             Project: Flink
>          Issue Type: Improvement
>          Components: Build System
>            Reporter: Maximilian Michels
>            Assignee: Maximilian Michels
>              Labels: test-stability
>
> I'm seeing many tests failures because of timeouts:
> https://builds.apache.org/job/flink-ci/1/testReport/
> The {{forkCount}} is set to the aggressive value {{1.5C}}. We should consider to reduce
it at least to {{1C}} (1 fork per exposed physical/virtual core). That could improve the test
stability.
> I did another test using {{1C}} on Jenkins and had only one failed test and a decreased
(!) run time: https://builds.apache.org/job/flink-ci/2/testReport/
> 1.5C: 1h 57m
> 1C: 1h 35m
> I'll run some more tests to verify this. 



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