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https://issues.apache.org/jira/browse/YARN-3154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14348169#comment-14348169
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Xuan Gong commented on YARN-3154:
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bq. how should an app handle stdout and stderr i.e. rotating of these files?

Yes, and this is the user's responsibility for this. All we need to do is to 
upload the logs which exist.

bq.what regex format is supported? Will the NMClient do a sanity check to see 
if the format is valid?

Support java regex. All the Include/Excludepatterns are defined in ASC.

> Should not upload partial logs for MR jobs or other "short-running' 
> applications 
> ---------------------------------------------------------------------------------
>
>                 Key: YARN-3154
>                 URL: https://issues.apache.org/jira/browse/YARN-3154
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>            Priority: Blocker
>         Attachments: YARN-3154.1.patch, YARN-3154.2.patch, YARN-3154.3.patch
>
>
> Currently, if we are running a MR job, and we do not set the log interval 
> properly, we will have their partial logs uploaded and then removed from the 
> local filesystem which is not right.
> We only upload the partial logs for LRS applications.



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