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https://issues.apache.org/jira/browse/TEZ-3168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15198088#comment-15198088
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Hitesh Shah commented on TEZ-3168:
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[~vinodkv] [~jianhe] Mind taking a look at this patch to see whether we are
using the APIs for queue and cluster resources correctly. Also, if we are
accidentally using any private APIs, let us know.
> 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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