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From "zhihai xu (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (YARN-2324) Race condition in continuousScheduling for FairScheduler
Date Sun, 20 Jul 2014 07:04:38 GMT

     [ https://issues.apache.org/jira/browse/YARN-2324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

zhihai xu reassigned YARN-2324:
-------------------------------

    Assignee: zhihai xu

> Race condition in continuousScheduling for FairScheduler
> --------------------------------------------------------
>
>                 Key: YARN-2324
>                 URL: https://issues.apache.org/jira/browse/YARN-2324
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: zhihai xu
>            Assignee: zhihai xu
>
> Race condition in continuousScheduling for FairScheduler.
> removeNode can run when continuousScheduling is called in schedulingThread. If the node
is removed from nodes, nodes.get(n2) and getFSSchedulerNode(nodeId) will be null. So we need
add lock to remove the NPE/race conditions.



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