[jira] [Comment Edited] (CASSANDRA-13460) Diag. Events: Add local persistency

["Stefan Miklosovic (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-13460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17505903#comment-17505903 ] 

Stefan Miklosovic edited comment on CASSANDRA-13460 at 6/15/22 1:05 PM:
------------------------------------------------------------------------

https://github.com/apache/cassandra/pull/1685


was (Author: smiklosovic):
https://github.com/apache/cassandra/pull/1497

> Diag. Events: Add local persistency
> -----------------------------------
>
>                 Key: CASSANDRA-13460
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13460
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: Legacy/Observability
>            Reporter: Stefan Podkowinski
>            Assignee: Stefan Miklosovic
>            Priority: Normal
>             Fix For: 4.x
>
>         Attachments: 0001-Add-persistency-for-events-to-system-keyspace.patch
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> 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-  provide a dump of all events as described in the [documentation|https://github.com/spodkowinski/cassandra/blob/WIP-13460/doc/source/operating/diag_events.rst]. 
> This could be done by saving events white-listed in cassandra.yaml to a local table. Maybe using a TTL.



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