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https://issues.apache.org/jira/browse/TEZ-2633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654901#comment-14654901
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Rajesh Balamohan commented on TEZ-2633:
---------------------------------------

Lgtm overall. +1. Ignoring findbugs warnings mentioned in the the new 
identifiers as they are fixed in .4 version. Minor comments.
- Should changes related to handling of duplicate VMEvents in 
ShuffleVertexManager added in a separate JIRA? 
- TestImmediateStartVertexManager & TestShuffleVertexManager - Should it be 
null instead of emptyCompletions?
- Is default implementation of 
VertexManagerPlugin.onVertexStarted(List<TaskAttemptIdentifier> completions) 
provided for backward compatability?
- Remove TaskWithLocationHint in TestVertexImpl before commit


> Allow VertexManagerPlugins to receive and report based on attempts instead of 
> tasks
> -----------------------------------------------------------------------------------
>
>                 Key: TEZ-2633
>                 URL: https://issues.apache.org/jira/browse/TEZ-2633
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>         Attachments: TEZ-2633.1.patch, TEZ-2633.2.patch, TEZ-2633.3.patch, 
> TEZ-2633.4.patch
>
>
> If the same event is sent from an attempt and its retry then there is no way 
> to differentiate between them.



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