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From "Siddharth Seth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1131) $yarn logs command should return an appropriate error message if YARN application is still running
Date Thu, 03 Oct 2013 06:04:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13784850#comment-13784850
] 

Siddharth Seth commented on YARN-1131:
--------------------------------------

Will open the followup jiras. Running this through jenkins again. Haven't seen the specific
test fail or timeout on my local runs.

> $yarn logs command should return an appropriate error message if YARN application is
still running
> --------------------------------------------------------------------------------------------------
>
>                 Key: YARN-1131
>                 URL: https://issues.apache.org/jira/browse/YARN-1131
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: client
>    Affects Versions: 2.1.1-beta
>            Reporter: Tassapol Athiapinya
>            Assignee: Siddharth Seth
>            Priority: Minor
>         Attachments: YARN-1131.1.txt, YARN-1131.2.txt
>
>
> In the case when log aggregation is enabled, if a user submits MapReduce job and runs
$ yarn logs -applicationId <app ID> while the YARN application is running, the command
will return no message and return user back to shell. It is nice to tell the user that log
aggregation is in progress.
> {code}
> -bash-4.1$ /usr/bin/yarn logs -applicationId application_1377900193583_0002
> -bash-4.1$
> {code}
> At the same time, if invalid application ID is given, YARN CLI should say that the application
ID is incorrect rather than throwing NoSuchElementException.
> {code}
> $ /usr/bin/yarn logs -applicationId application_00000
> Exception in thread "main" java.util.NoSuchElementException
> at com.google.common.base.AbstractIterator.next(AbstractIterator.java:75)
> at org.apache.hadoop.yarn.util.ConverterUtils.toApplicationId(ConverterUtils.java:124)
> at org.apache.hadoop.yarn.util.ConverterUtils.toApplicationId(ConverterUtils.java:119)
> at org.apache.hadoop.yarn.logaggregation.LogDumper.run(LogDumper.java:110)
> at org.apache.hadoop.yarn.logaggregation.LogDumper.main(LogDumper.java:255)
> {code}



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