[CASSANDRA-12167] Review JMX metrics test coverage

• Type: Improvement
• Status: Open
• Priority: Normal
• Resolution: Unresolved
• Component/s: Legacy/Testing, Observability/Metrics
• Assignee: Unassigned
• Reporter: Jim Witschey
• Created: 11/Jul/16 16:17
• Updated: 16/Apr/19 09:30

Description

I just deleted the dtest that was meant to smoke test JMX metrics:

https://github.com/riptano/cassandra-dtest/pull/1085

The idea was that you'd read JMX metrics, run stress, then make sure the metrics went up, down, or stayed the same, as appropriate. This kind of coverage would be good to have.

I don't think we have it anywhere in the dtests, and it probably isn't appropriate in unit tests. We should check there's no coverage in the unit tests, and add some coverage.