Mark Payne created NIFI-6658:
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Summary: Provide capability for obtaining diagnostic information
for admins
Key: NIFI-6658
URL: https://issues.apache.org/jira/browse/NIFI-6658
Project: Apache NiFi
Issue Type: New Feature
Reporter: Mark Payne
Assignee: Mark Payne
When users run into issues, there are several different questions that we end
up asking very often:
* What version of NiFi?
* What does thread dump look like?
* What version of Java?
* Operating system info
* Disk space usage
* Cluster information
* How many open file handles are used / allowed?
And several others that are along those same lines.
We already have the ability for an admin to run `bin/nifi.sh dump <filename>`
to gather the thread dump. We should expand this capability to provide more
than just a thread dump and to provide the answers to these common questions,
so that a user can easily just obtain the diagnostic information easily with a
single command.
It probably makes more sense to introduce a new command, `bin/nifi.sh
diagnostics <filename>` rather than just adding this to the `dump` command
because there are times that we need to gather several thread dumps, and we
don't need to gather all of this information each time. Some may already have
scripts, etc. that are setup to parse the thread dumps, as well.
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