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https://issues.apache.org/jira/browse/MAPREDUCE-6315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15258663#comment-15258663
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Sangjin Lee commented on MAPREDUCE-6315:
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Thanks [~jira.shegalov]! This is a much-needed enhancement. I agree with most
of Ming's comments. Especially it would be awesome if the web side can benefit
from this.
> 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
> Assignee: 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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