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https://issues.apache.org/jira/browse/YARN-3197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14325702#comment-14325702
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Devaraj K commented on YARN-3197:
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rmContainer could be null when SchedulerApplicationAttempt is null or
liveContainers doesn't have the container info. There could be a chance of
ApplicationAttempt is running and container has already completed(removed from
liveContainers). Here we cannot say unknown application.
I have mentioned 'Unknown container' because RM has removed this container info
and doesn't know about this container any more. Do you see any better message
here?
> Confusing log generated by CapacityScheduler
> --------------------------------------------
>
> Key: YARN-3197
> URL: https://issues.apache.org/jira/browse/YARN-3197
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 2.6.0
> Reporter: Hitesh Shah
> Assignee: Varun Saxena
> Priority: Minor
> Attachments: YARN-3197.001.patch
>
>
> 2015-02-12 20:35:39,968 INFO capacity.CapacityScheduler
> (CapacityScheduler.java:completedContainer(1190)) - Null container
> completed...
> 2015-02-12 20:35:39,968 INFO capacity.CapacityScheduler
> (CapacityScheduler.java:completedContainer(1190)) - Null container
> completed...
> 2015-02-12 20:35:39,968 INFO capacity.CapacityScheduler
> (CapacityScheduler.java:completedContainer(1190)) - Null container
> completed...
> 2015-02-12 20:35:40,960 INFO capacity.CapacityScheduler
> (CapacityScheduler.java:completedContainer(1190)) - Null container
> completed...
> 2015-02-12 20:35:40,960 INFO capacity.CapacityScheduler
> (CapacityScheduler.java:completedContainer(1190)) - Null container
> completed...
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