[ https://issues.apache.org/jira/browse/YARN-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Siddharth Seth updated YARN-1131: --------------------------------- Attachment: YARN-1131.1.txt Changes in the patch Adds a YARN application status check based on the ApplicationId, to log a correct message if the application is running. If an application is not found in the RM - the CLI tool will continue to search for the files on hdfs (RM not running, or RM restarted). Fixes the exception in case of an invalid applicationId. There's still a case, right after an app completes, but before aggregation is complete where an empty output is returned. That should be a separate jira though. > $ 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 > Affects Versions: 2.1.1-beta > Reporter: Tassapol Athiapinya > Assignee: Siddharth Seth > Priority: Minor > Fix For: 2.1.2-beta > > 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} -- This message was sent by Atlassian JIRA (v6.1#6144)