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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5193) For long running services, aggregate logs when a container completes instead of when the app completes
Date Thu, 02 Jun 2016 07:32:59 GMT

    [ https://issues.apache.org/jira/browse/YARN-5193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15311880#comment-15311880
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Rohith Sharma K S commented on YARN-5193:
-----------------------------------------

Looking into this JIRA, currently log rolling can be enabled. Doesn't it help?

bq. There's some added benefits like cleaning out local disk space early, instead of waiting
till the app completes.
+1 for this. Recently in our production cluster container started failing because of sub folder
creation under application folder. One of the improvement which I raised for this  is YARN-4953.


> For long running services, aggregate logs when a container completes instead of when
the app completes
> ------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-5193
>                 URL: https://issues.apache.org/jira/browse/YARN-5193
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Siddharth Seth
>
> For a long running service, containers will typically not complete very often. However,
when a container completes - it would be useful to aggregate the logs right then, instead
of waiting for the app to complete.
> This will allow the command line log tool to lookup containers for an app from the log
file index itself, instead of having to go and talk to YARN. Talking to YARN really only works
if ATS is enabled, and YARN is configured to publish container information to ATS (That may
not always be the case - since this can overload ATS quite fast).
> There's some added benefits like cleaning out local disk space early, instead of waiting
till the app completes. (There's probably a separate jira somewhere about cleanup of container
for long running services anyway)
> cc [~vinodkv], [~xgong]



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