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From "Joep Rottinghuis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1069) Deterministic MiniYARNCluster
Date Tue, 17 Sep 2013 21:59:52 GMT

     [ https://issues.apache.org/jira/browse/YARN-1069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joep Rottinghuis updated YARN-1069:
-----------------------------------

    Priority: Major  (was: Minor)
    
> Deterministic MiniYARNCluster
> -----------------------------
>
>                 Key: YARN-1069
>                 URL: https://issues.apache.org/jira/browse/YARN-1069
>             Project: Hadoop YARN
>          Issue Type: Test
>    Affects Versions: 2.1.0-beta
>            Reporter: Maysam Yabandeh
>            Assignee: Maysam Yabandeh
>
> Currently the order of events in MiniYarnCluster is nondeterministic as the events are
triggered by scheduled timers. This makes it difficult to write tests since some erroneous
scenarios are triggered only after some particular sequence of events. An example is the bug
in YARN-779 where without this control over events, writing a deterministic unit test is not
possible. We should modify the source to allow both manual invocation of events as well as
via existing periodic timers. MiniYarnCluster can then expose such methods for more control
over events ordering.

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