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Posted to mapreduce-issues@hadoop.apache.org by "Mohammad Shahid Khan (JIRA)" <ji...@apache.org> on 2015/12/19 10:41:46 UTC
[jira] [Updated] (MAPREDUCE-6574) MR AM should print host of failed
tasks.
[ 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-v1.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
> Attachments: MAPREDUCE-6574-v1.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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