Dustin Cote created YARN-3924:
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Summary: Submitting an application to standby ResourceManager
should respond better than Connection Refused
Key: YARN-3924
URL: https://issues.apache.org/jira/browse/YARN-3924
Project: Hadoop YARN
Issue Type: Improvement
Components: resourcemanager
Reporter: Dustin Cote
Priority: Minor
When submitting an application directly to a standby resource manager, the
resource manager responds with 'Connection Refused' rather than indicating that
it is a standby resource manager. Because the resource manager is aware of its
own state, I feel like we can have the 8032 port open for standby resource
managers and reject the request with something like 'Cannot process application
submission from this standby resource manager'.
This would be especially helpful for debugging oozie problems when users put in
the wrong address for the 'jobtracker' (i.e. they don't put the logical RM
address but rather point to a specific resource manager).
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