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https://issues.apache.org/jira/browse/TEZ-3274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16070280#comment-16070280
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Eric Badger commented on TEZ-3274:
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[~jeagles], I'll file followup jiras for the deprecated keys issues as well as
for cleanup between the two vertex managers
> Vertex with MRInput and broadcast input does not respect slow start
> -------------------------------------------------------------------
>
> Key: TEZ-3274
> URL: https://issues.apache.org/jira/browse/TEZ-3274
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jonathan Eagles
> Assignee: Eric Badger
> Attachments: TEZ-3274.001.patch, TEZ-3274.002.patch,
> TEZ-3274.003.patch, TEZ-3274.004.patch, TEZ-3274.005.patch,
> TEZ-3274.006.patch, TEZ-3274.007.patch, TEZ-3274.008.patch
>
>
> Vertices with shuffle input and MRInput choose RootInputVertexManager (and
> not ShuffleVertexManager) and start containers and tasks immediately. In this
> scenario, resources can be wasted since they do not respect
> tez.shuffle-vertex-manager.min-src-fraction
> tez.shuffle-vertex-manager.max-src-fraction.
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