Jason Lowe created YARN-165:
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Summary: RM should point tracking URL to RM web page for app when
AM fails
Key: YARN-165
URL: https://issues.apache.org/jira/browse/YARN-165
Project: Hadoop YARN
Issue Type: Improvement
Components: resourcemanager
Affects Versions: 2.0.3-alpha, 0.23.5
Reporter: Jason Lowe
Currently when an ApplicationMaster fails the ResourceManager is updating the
tracking URL to an empty string, see
RMAppAttemptImpl.ContainerFinishedTransition. Unfortunately when the client
attempts to follow the proxy URL it results in a web page showing an HTTP 500
error and an ugly backtrace because "http://"; isn't a very helpful tracking URL.
It would be much more helpful if the proxy URL redirected to the RM webapp page
for the specific application. That page shows the various AM attempts and
pointers to their logs which will be useful for debugging the problems that
caused the AM attempts to fail.
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