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From "Akira Ajisaka (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-6208) Improve the log when FinishAppEvent sent to the NodeManager which didn't run the application
Date Fri, 17 Feb 2017 07:03:41 GMT
Akira Ajisaka created YARN-6208:
-----------------------------------

             Summary: Improve the log when FinishAppEvent sent to the NodeManager which didn't
run the application
                 Key: YARN-6208
                 URL: https://issues.apache.org/jira/browse/YARN-6208
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Akira Ajisaka
            Priority: Minor


When FinishAppEvent of an application is sent to a NodeManager and there are no applications
of the application ran on the NodeManager, we can see the following log:
{code}
2015-12-28 11:59:18,725 WARN org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl:
Event EventType: FINISH_APPLICATION sent to absent application application_1446103803043_9892
{code}
YARN-4520 made the log as follows:
{code}
          LOG.warn("couldn't find application " + appID + " while processing"
              + " FINISH_APPS event");
{code}
and I'm thinking it can be improved.
* Make the log WARN from INFO
* Add why the NodeManager couldn't find the application. For example, "because there were
no containers of the application ran on the NodeManager."



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