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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1265) Fair Scheduler chokes on unhealthy node reconnect
Date Thu, 03 Oct 2013 00:08:44 GMT

     [ https://issues.apache.org/jira/browse/YARN-1265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sandy Ryza updated YARN-1265:
-----------------------------

    Attachment: YARN-1265.patch

> Fair Scheduler chokes on unhealthy node reconnect
> -------------------------------------------------
>
>                 Key: YARN-1265
>                 URL: https://issues.apache.org/jira/browse/YARN-1265
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, scheduler
>    Affects Versions: 2.1.1-beta
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: YARN-1265.patch
>
>
> Only nodes in the RUNNING state are tracked by schedulers.  When a node reconnects, RMNodeImpl.ReconnectNodeTransition
tries to remove it, even if it's in the RUNNING state.  The FairScheduler doesn't guard against
this.
> I think the best way to fix this is to check to see whether a node is RUNNING before
telling the scheduler to remove it.



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