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From "Markus Weimer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3337) Provide YARN chaos monkey
Date Thu, 12 Mar 2015 20:07:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-3337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14359290#comment-14359290
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Markus Weimer commented on YARN-3337:
-------------------------------------

Excellent idea! We do this over in REEF within the AM as well as the containers (via reef-poison),
but that doesn't allow us to create failures at a low enough level. Having the RM kill our
containers would be awesome for tests.

> Provide YARN chaos monkey
> -------------------------
>
>                 Key: YARN-3337
>                 URL: https://issues.apache.org/jira/browse/YARN-3337
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: test
>    Affects Versions: 2.7.0
>            Reporter: Steve Loughran
>
> To test failure resilience today you either need custom scripts or implement Chaos Monkey-like
logic in your application (SLIDER-202). 
> Killing AMs and containers on a schedule & probability is the core activity here,
one that could be handled by a CLI App/client lib that does this. 
> # entry point to have a startup delay before acting
> # frequency of chaos wakeup/polling
> # probability to AM failure generation (0-100)
> # probability of non-AM container kill
> # future: other operations



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