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https://issues.apache.org/jira/browse/YARN-8394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16671119#comment-16671119
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Weiwei Yang commented on YARN-8394:
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Hi [~yufeigu]
Apologies I missed your last comment.
Are you suggesting when "yarn.scheduler.capacity.node-locality-delay" is set to
"-1", then we should AUTO disable "rack-locality-additional-delay" too? I
think that makes sense.
We need a Jira to track this, revisit the locality code under the context of
cloud environment. Let me open one to track.
Thanks!
> Improve data locality documentation for Capacity Scheduler
> ----------------------------------------------------------
>
> Key: YARN-8394
> URL: https://issues.apache.org/jira/browse/YARN-8394
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Priority: Major
> Fix For: 3.2.0, 3.1.1, 3.0.4
>
> Attachments: YARN-8394.001.patch, YARN-8394.002.patch
>
>
> YARN-6344 introduces a new parameter
> {{yarn.scheduler.capacity.rack-locality-additional-delay}} in
> capacity-scheduler.xml, we need to add some documentation in
> {{CapacityScheduler.md}} accordingly.
> Moreover, we are seeing more and more clusters are separating storage and
> computation where file system is always remote, in such cases we need to
> introduce how to compromise data locality in CS otherwise MR jobs are
> suffering.
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