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https://issues.apache.org/jira/browse/TEZ-1039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13965878#comment-13965878
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Hitesh Shah commented on TEZ-1039:
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[~bikassaha] I am assuming that given that VertexLocationHints and
TaskLocationHints are user visible classes, location hints used internally that
container container hints will be in a separate object not visible as part of
the DAG APIs? May be required to be exposed to vertex managers though.
> Add Container locality to TaskScheduler
> ---------------------------------------
>
> Key: TEZ-1039
> URL: https://issues.apache.org/jira/browse/TEZ-1039
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Bikas Saha
>
> Currently, the task scheduler support node and rack locality. Proposal is to
> add another level - container locality (given a container) which means first
> try to assign to the container, then fall back to the container's node, rack
> and so on.
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