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From "Konstantinos Karanasos (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-5486) Update OpportunisticContainerAllocatorAMService::allocate method to handle OPPORTUNISTIC container requests
Date Tue, 27 Sep 2016 21:17:20 GMT

     [ https://issues.apache.org/jira/browse/YARN-5486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantinos Karanasos updated YARN-5486:
-----------------------------------------
    Attachment: YARN-5486.002.patch

Rebasing against trunk and adding new patch, also including some more changes/fixes.

Thanks for the feedback, [~subru].
Regarding the _LinkedHashMap_ in the {{OpportunisticContainerContext}}, we actually need it
to keep the ordering of the nodes. Least loaded nodes should come first when iterating over
the hashmap, as they should be preferred when placing opportunistic containers.
I added checks for the ContainerTypes in {{TestOpportunisticContainersAllocation}}, as you
suggested. 
I suggest to keep the existing sleep logic for now, if it's OK, since it does not seem to
make the code much cleaner in the particular cases it is used (also chatted with [~chris.douglas]
about this).

> Update OpportunisticContainerAllocatorAMService::allocate method to handle OPPORTUNISTIC
container requests
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-5486
>                 URL: https://issues.apache.org/jira/browse/YARN-5486
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Arun Suresh
>            Assignee: Konstantinos Karanasos
>         Attachments: YARN-5486.001.patch, YARN-5486.002.patch
>
>
> YARN-5457 refactors the Distributed Scheduling framework to move the container allocator
to yarn-server-common.
> This JIRA proposes to update the allocate method in the new AM service to use the OpportunisticContainerAllocator
to allocate opportunistic containers.



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