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https://issues.apache.org/jira/browse/YARN-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli updated YARN-1131:
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Fix Version/s: (was: 2.1.2-beta)
> $ yarn logs should return a message log aggregation is during progress if
> YARN application is 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
>
>
> 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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