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From "Mohammad Shahid Khan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6574) MR AM should print host of failed tasks.
Date Thu, 24 Dec 2015 18:38:49 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mohammad Shahid Khan updated MAPREDUCE-6574:
--------------------------------------------
    Attachment: MAPREDUCE-6574-v3.patch

> MR AM should print host of failed tasks.
> ----------------------------------------
>
>                 Key: MAPREDUCE-6574
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6574
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Wangda Tan
>            Assignee: Mohammad Shahid Khan
>         Attachments: MAPREDUCE-6574-v1.patch, MAPREDUCE-6574-v2.patch, MAPREDUCE-6574-v3.patch
>
>
> Something tasks failed because of issues on NMs. For example, bad disk/network could
cause reducer fetching failure and mappers need to be re-scheduled.
> It will be very helpful to identify such issues if we could print host of failed tasks,
which we can simply grep MR AM's log to see what happened.



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