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Posted to mapreduce-issues@hadoop.apache.org by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org> on 2016/08/22 18:46:20 UTC
[jira] [Updated] (MAPREDUCE-6315) Implement retrieval of logs for
crashed MR-AM via jhist in the staging directory
[ https://issues.apache.org/jira/browse/MAPREDUCE-6315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinod Kumar Vavilapalli updated MAPREDUCE-6315:
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Target Version/s: 2.9.0 (was: 2.8.0)
I applied the patch and looked at it. {{mapred job -logs}} is an arcane command that I don't know of a lot of users using. It definitely isn't the first place our users go - that would be the web UI. Given that, I also agree that putting this in the JobHistory-UI is a minimum requirement.
Even without that, this patch needs more work as commented above.
Note that YARN's the ResourceManager does have these log-links against each app-attempt.
Given all of the above, I am moving this into 2.9 and unblocking 2.8.0. Please revert back if you disagree. Tx.
> 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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