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Posted to issues@tez.apache.org by "Hitesh Sharma (JIRA)" <ji...@apache.org> on 2018/10/17 07:41:00 UTC

[jira] [Updated] (TEZ-4010) Use InputReadyVertexManager for broadcast connection

     [ https://issues.apache.org/jira/browse/TEZ-4010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hitesh Sharma updated TEZ-4010:
-------------------------------
    Priority: Minor  (was: Major)

> 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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