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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