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https://issues.apache.org/jira/browse/YARN-4597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun Suresh updated YARN-4597:
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Attachment: YARN-4597.002.patch
Updating patch.
* Simplifying {{ContainerScheduler}} code further : No need for synchronized
data structures, since the events are guaranteed to be ordered.
* Fixed most of the testcases. The {{TestContainer}} is a bit more involved..
will include that in the next patch.
* As per [~kasha]'s suggestion, instead of using a boolean to signify if
queuing should be enabled, the configuration has been replaced with
'max-queue-length' so signify the size of the queue. A default value of 0
implies queuing is disabled.
> Add SCHEDULE to NM container lifecycle
> --------------------------------------
>
> Key: YARN-4597
> URL: https://issues.apache.org/jira/browse/YARN-4597
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Reporter: Chris Douglas
> Assignee: Arun Suresh
> Attachments: YARN-4597.001.patch, YARN-4597.002.patch
>
>
> Currently, the NM immediately launches containers after resource
> localization. Several features could be more cleanly implemented if the NM
> included a separate stage for reserving resources.
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