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