[jira] [Created] (CASSANDRA-13460) Diag. Events: Add local persistance

["Stefan Podkowinski (JIRA)" <ji...@apache.org>]

Stefan Podkowinski created CASSANDRA-13460:
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             Summary: Diag. Events: Add local persistance
                 Key: CASSANDRA-13460
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13460
             Project: Cassandra
          Issue Type: Sub-task
            Reporter: Stefan Podkowinski
            Assignee: Stefan Podkowinski


Some generated events will be rather less frequent but very useful for retroactive troubleshooting. E.g. all events related to bootstraping and gossip would probably be worth saving, as they might provide valuable insights and will consume very little resources in low quantities. Imaging if we could e.g. in case of CASSANDRA-13348 just ask the user to run a tool like {{./bin/diagdump BootstrapEvent}} on each host, to get us a detailed log of all relevant events. 

This could be done by saving events white-listed in cassandra.yaml to a local table. Maybe using a TTL.




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