[jira] [Commented] (CASSANDRA-14435) Diag. Events: JMX events

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

    [ https://issues.apache.org/jira/browse/CASSANDRA-14435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16460990#comment-16460990 ] 

Stefan Podkowinski commented on CASSANDRA-14435:
------------------------------------------------

Quick way to give this a local test:

* compile and start
* jconsole localhost:7199
* Enable events if disabled in yaml: {{o.a.c.diag DiagnosticEventService}} -> {{resumePublishing()}}
* Start emit dummy events: {{o.a.c.diag DummyEventEmitter}} -> {{dummyEventEmitIntervalMillis(1000)}}
* Enable listening to dummy events: {{o.a.c.diag DiagnosticEvents}} -> {{enableEvents(org.apache.cassandra.diag.DummyEvent)}}
* Go to {{o.a.c.diag DiagnosticEvents}} Notifications and subscribe 



> Diag. Events: JMX events
> ------------------------
>
>                 Key: CASSANDRA-14435
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14435
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Stefan Podkowinski
>            Assignee: Stefan Podkowinski
>            Priority: Major
>             Fix For: 4.x
>
>
> Nodes currently use JMX events for progress reporting on bootstrap and repairs. This might also be an option to expose diagnostic events to external subscribers.



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