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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (YARN-454) FS could wait until next NODE_UPDATE event to schedule a reserved container
Date Sat, 09 Mar 2013 01:51:13 GMT

     [ https://issues.apache.org/jira/browse/YARN-454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla resolved YARN-454.
-----------------------------------

    Resolution: Invalid
    
> FS could wait until next NODE_UPDATE event to schedule a reserved container
> ---------------------------------------------------------------------------
>
>                 Key: YARN-454
>                 URL: https://issues.apache.org/jira/browse/YARN-454
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: scheduler
>    Affects Versions: 2.0.3-alpha
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>
> FS#nodeUpdate() allocates reserved containers first. However, it seems (from code observation):
if an app reserves a container on a node while FS is scheduling a task on that node from the
non-reserved pool, the request is skipped in that NODE_UPDATE event. It is addressed on the
next event.

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