Wangda Tan commented on MAPREDUCE-6315:

Thanks [~jira.shegalov], I temporarily moved it to 3.2.0, if you have cycle to 
finish, please feel free to put it to 3.1.0.

> Implement retrieval of logs for crashed MR-AM via jhist in the staging 
> directory
> --------------------------------------------------------------------------------
>                 Key: MAPREDUCE-6315
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6315
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: client, mr-am
>    Affects Versions: 2.7.0
>            Reporter: Gera Shegalov
>            Priority: Critical
>              Labels: BB2015-05-TBR
>         Attachments: MAPREDUCE-6315.001.patch, MAPREDUCE-6315.002.patch, 
> MAPREDUCE-6315.003.patch
> When all AM attempts crash, there is no record of them in JHS. Thus no easy 
> way to get the logs. This JIRA automates the procedure by utilizing the jhist 
> file in the staging directory. 

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