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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-4412) Create ClusterMonitor to compute ordered list of preferred NMs for OPPORTUNITIC containers
Date Tue, 16 Feb 2016 17:46:18 GMT

     [ https://issues.apache.org/jira/browse/YARN-4412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun Suresh updated YARN-4412:
------------------------------
    Attachment: YARN-4412-yarn-2877.v4.patch

Updating patch to fix testcases.

With regard to the findbugs warnings:
# The {{System.exit(-1)}} in the {{EventDispatcher}} is intentional
# The Synchronization inconsistencies in the Protocol Buffer classes will remain.. to maintain
consistency with all the other PBImpl classes. Also, I do not expect multiple threads to be
modifying the same object in any case.

> Create ClusterMonitor to compute ordered list of preferred NMs for OPPORTUNITIC containers
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-4412
>                 URL: https://issues.apache.org/jira/browse/YARN-4412
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>         Attachments: YARN-4412-yarn-2877.v1.patch, YARN-4412-yarn-2877.v2.patch, YARN-4412-yarn-2877.v3.patch,
YARN-4412-yarn-2877.v4.patch
>
>
> Introduce a Cluster Monitor that aggregates load information from individual Node Managers
and computes an ordered list of preferred Node managers to be used as target Nodes for OPPORTUNISTIC
container allocations. 
> This list can be pushed out to the Node Manager (specifically the AMRMProxy running on
the Node) via the Allocate Response. This will be used to make local Scheduling decisions



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