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https://issues.apache.org/jira/browse/TEZ-4010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16653979#comment-16653979
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Jonathan Eagles commented on TEZ-4010:
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[~hrsharma], [~gopalv], [~yingdachen], Unless, I'm mistaken this functionality
was added for at least certain scenarios as part of TEZ-3274. Can you verify
that the Hive scenario Hive is/is not covered by this case (with appropriate
configurations set)
> Use InputReadyVertexManager for broadcast connection
> ----------------------------------------------------
>
> Key: TEZ-4010
> URL: https://issues.apache.org/jira/browse/TEZ-4010
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Hitesh Sharma
> Priority: Minor
>
> As per
> [VertexImpl::assignVertexManager|https://github.com/apache/tez/blob/39d76a656216d4843908279ef8eaa29a4cc83104/tez-dag/src/main/java/org/apache/tez/dag/app/dag/impl/VertexImpl.java#L2677]
> an ImmediateStartVertexManager is used for broadcast connections. This seems
> to be inefficient as tasks are started way before they can run in the DAG.
> Thoughts on using InputReadyVertexManager for broadcast connections?
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