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https://issues.apache.org/jira/browse/SAMZA-619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14740308#comment-14740308
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Yan Fang commented on SAMZA-619:
--------------------------------
Another question is that, why do we need a new thread for the
containerAllocator? Why can't it happen in the same main thread like what we
did for non-host-affinity Yarn?
> Modify Samza AppMaster to enable host-affinity
> ----------------------------------------------
>
> Key: SAMZA-619
> URL: https://issues.apache.org/jira/browse/SAMZA-619
> Project: Samza
> Issue Type: Task
> Components: yarn
> Affects Versions: 0.10.0
> Reporter: Navina Ramesh
> Assignee: Navina Ramesh
> Fix For: 0.10.0
>
> Attachments: SAMZA-619-0.patch, SAMZA-619-1.patch
>
>
> In order to enable host-affinity in YARN, the Samza App Master must include
> the node list in the resource request.
> The node list can be obtained from the Job Coordinator that provides the
> container-to-host mapping (SAMZA-618)
> YARN must also be configured to use FairScheduler with continuous scheduling.
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