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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1368) Common work to re-populate containers’ state into scheduler
Date Thu, 22 May 2014 01:44:39 GMT

     [ https://issues.apache.org/jira/browse/YARN-1368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jian He updated YARN-1368:

    Attachment: YARN-1368.3.patch

Thanks Wangda for the review ! the new patch fixed the comments also.
bq. Should we change Resource(1024, 1) to its actually resource?
bq. For recoverContainersOnNode, is it possible NODE_ADDED happened before APP_ADDED?
Not possible, APP_ADDED happens synchronously before ResourceTrackerService is started.
bq. It may better to use two parameter assertEquals, because delta is 0
because they are two doubles. fixed the delta value to be 1e-8
bq. Why use split AMContainerCrashedTransition to two transitions and set their states to
To capture completed containers at RUNNING/LAUNCHED state and reuse the common code.

> Common work to re-populate containers’ state into scheduler
> -----------------------------------------------------------
>                 Key: YARN-1368
>                 URL: https://issues.apache.org/jira/browse/YARN-1368
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Bikas Saha
>            Assignee: Jian He
>         Attachments: YARN-1368.1.patch, YARN-1368.2.patch, YARN-1368.3.patch, YARN-1368.combined.001.patch,
> YARN-1367 adds support for the NM to tell the RM about all currently running containers
upon registration. The RM needs to send this information to the schedulers along with the
NODE_ADDED_EVENT so that the schedulers can recover the current allocation state of the cluster.

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