Robert Parker created YARN-819:
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Summary: ResourceManager and NodeManager mismatched version should
create an error
Key: YARN-819
URL: https://issues.apache.org/jira/browse/YARN-819
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Robert Parker
Assignee: Robert Parker
Our use case is during upgrade on a large cluster several NodeManagers may not
restart with the new version. Once the RM comes back up the NodeManager will
re-register without issue to the RM.
The NM should report the version the RM. The RM should have a configuration to
disallow the check (default), equal to the RM (to prevent config change for
each release), equal to or greater than RM (to allow NM upgrades), and finally
an explicit version or version range.
The RM should also have an configuration on how to treat the mismatch: REJECT,
or REBOOT the NM.
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