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https://issues.apache.org/jira/browse/TEZ-3198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16622149#comment-16622149
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Jonathan Eagles commented on TEZ-3198:
--------------------------------------

[~Jiang Xin], this fix that will help is available in the upcoming releases. If 
you are able to build and run tez, it is available in the branch-0.9 (0.9.x 
HEAD) and master (0.10.x HEAD)

> Shuffle failures for the trailing task in a vertex are often fatal to the 
> entire DAG
> ------------------------------------------------------------------------------------
>
>                 Key: TEZ-3198
>                 URL: https://issues.apache.org/jira/browse/TEZ-3198
>             Project: Apache Tez
>          Issue Type: Bug
>    Affects Versions: 0.7.0, 0.8.2
>            Reporter: Jason Lowe
>            Priority: Critical
>
> I've seen an increasing number of cases where a single-node failure caused 
> the whole Tez DAG to fail. These scenarios are common in that they involve 
> the last task of a vertex attempting to complete a shuffle where all the peer 
> tasks have already finished shuffling.  The last task's attempt encounters 
> errors shuffling one of its inputs and keeps reporting it to the AM.  
> Eventually the attempt decides it must be the cause of the shuffle error and 
> fails.  The subsequent attempts all do the same thing, and eventually we hit 
> the task max attempts limit and fail the vertex and DAG.



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