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Posted to commits@cassandra.apache.org by "Ekaterina Dimitrova (Jira)" <ji...@apache.org> on 2022/07/06 15:52:00 UTC
[jira] [Comment Edited] (CASSANDRA-15254) Allow UPDATE on settings virtual table to change running configurations
[ https://issues.apache.org/jira/browse/CASSANDRA-15254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17563308#comment-17563308 ]
Ekaterina Dimitrova edited comment on CASSANDRA-15254 at 7/6/22 3:51 PM:
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FYI - I opened and linked to this ticket CASSANDRA-17734. to validate that Config properties actually are always updated internally so that we see and update properly in Settings Virtual Table when this patch lands. I found examples where JMX updates properly Cassandra and shows the right value assigned internally but this is not assigned to the original Config class property and we just see and operate with the yaml property. In this case update to that one from Settings Table would have had zero effect internally. Example -
*index_summary_resize_interval*
was (Author: e.dimitrova):
FYI - I opened and linked to this ticket CASSANDRA-17734. to validate that Config properties actually are always updated internally so that we see and update properly in Settings Virtual Table when this patch lands. I found examples where JMX updates properly Cassandra and shows the right value assigned internally but this is not assigned to the original Config class property and we just see and operate with the yaml property. In this case update to that one from Settings Table would have had zero effect internally.
> Allow UPDATE on settings virtual table to change running configurations
> -----------------------------------------------------------------------
>
> Key: CASSANDRA-15254
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15254
> Project: Cassandra
> Issue Type: New Feature
> Components: Feature/Virtual Tables
> Reporter: Chris Lohfink
> Assignee: Benjamin Lerer
> Priority: Normal
>
> Allow using UPDATE on the system_views.settings virtual table to update configs at runtime for the equivalent of the dispersed JMX attributes/operations.
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