NIFI-12453, NIFI-12454: Allow easily determining cluster state of a n…

[markap14]

…ode by running nifi.sh cluster-status and allow decommissioning of nodes without shutting down

Summary

NIFI-00000

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• Apache NiFi Jira issue created

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  • JDK 21

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[exceptionfactory]

Thanks for introducing this new command option @markap14. The implementation looks straightforward. It would be helpful to move the use case documentation changes to a separate pull request for independent tracking.

[markap14]

Yeah fair, @exceptionfactory, I didn't really intend to include that in there, was just some doc updates that I was working on previously and forgot to stash them away :) Have moved them into a new PR.

[exceptionfactory]

Thanks for making the adjustments @markap14, the latest version looks good! +1 merging