Todd Lipcon created KUDU-2287:
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Summary: Add replica metric tracking time since there was a valid
leader
Key: KUDU-2287
URL: https://issues.apache.org/jira/browse/KUDU-2287
Project: Kudu
Issue Type: New Feature
Components: metrics, supportability
Affects Versions: 1.7.0
Reporter: Todd Lipcon
Currently monitoring systems can report that the Kudu cluster is perfectly
healthy when in fact some tablet has gotten "stuck" with no leader (eg due to
some network connectivity problem or a bug). If we exposed a numeric metric on
a tablet indicating the time since a replica was healthy, or number of failed
election attempts, etc, we could easily monitor for this case.
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