[jira] [Commented] (TEZ-3810) TezCounter for idle time in shuffle phase

["Hadoop QA (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-3810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17400588#comment-17400588 ] 

Hadoop QA commented on TEZ-3810:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m  6s{color} | {color:red} TEZ-3810 does not apply to master. Rebase required? Wrong Branch? See https://cwiki.apache.org/confluence/display/TEZ/How+to+Contribute+to+Tez for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | TEZ-3810 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12902897/TEZ-3810.005.patch |
| Console output | https://ci-hadoop.apache.org/job/PreCommit-TEZ-Build/121/console |
| versions | git=2.17.1 |
| Powered by | Apache Yetus 0.12.0 https://yetus.apache.org |


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> TezCounter for idle time in shuffle phase
> -----------------------------------------
>
>                 Key: TEZ-3810
>                 URL: https://issues.apache.org/jira/browse/TEZ-3810
>             Project: Apache Tez
>          Issue Type: Improvement
>            Reporter: Ashwin Ramesh
>            Assignee: Kuhu Shukla
>            Priority: Major
>         Attachments: TEZ-3810-001.patch, TEZ-3810.002.patch, TEZ-3810.003.patch, TEZ-3810.004.patch, TEZ-3810.005.patch
>
>
>  A task attempt counter that tracks how much time was spent waiting for inputs in the shuffle phase. We can use this to quickly identify jobs that are wasting a lot of time on the grid with idle reducer tasks instead of shuffling/merging.



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