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https://issues.apache.org/jira/browse/TEZ-3168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15198874#comment-15198874
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Siddharth Seth commented on TEZ-3168:
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Is the patch ready for review (the name says wip) ?
Quickly scanned through it, and I think it looks good for the most part. Will
look some more if this is ready to go in.
> Provide a more predictable approach for total resource guidance for
> wave/split calculation
> -------------------------------------------------------------------------------------------
>
> Key: TEZ-3168
> URL: https://issues.apache.org/jira/browse/TEZ-3168
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Hitesh Shah
> Assignee: Hitesh Shah
> Attachments: TEZ-3168.wip.patch
>
>
> Currently, Tez uses headroom for checking total available resources. This is
> flaky as it ends up causing the split count to be determined by a point in
> time lookup at what is available in the cluster. A better approach would be
> either the queue size or even cluster size to get a more predictable count.
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