Tassapol Athiapinya created YARN-1131:
-----------------------------------------
Summary: $ 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: Improvement
Components: client
Reporter: Tassapol Athiapinya
Priority: Minor
Fix For: 2.1.1-beta
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}
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
