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https://issues.apache.org/jira/browse/CASSANDRA-16958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17475107#comment-17475107
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Caleb Rackliffe commented on CASSANDRA-16958:
---------------------------------------------
Wrapped up my first pass at review. I'll probably be ready to approve once we
resolve the [minor outstanding
comments|https://github.com/apache/cassandra/pull/1205/files#r783622670].
> Prewarm role and credentials caches to avoid timeouts at startup
> ----------------------------------------------------------------
>
> Key: CASSANDRA-16958
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16958
> Project: Cassandra
> Issue Type: Improvement
> Components: Feature/Authorization
> Reporter: Josh McKenzie
> Assignee: Josh McKenzie
> Priority: Normal
> Fix For: 4.x
>
>
> With our current auth querying setup, you can end up with a thundering herd
> on reconnect due to delays on auth resolution.
> We should instead allow the ability to do a 'select' on all roles and
> pre-load the cache before turning on native transport. Notably, this could
> present some unacceptable delays on start with a very large count of users
> (thousands), or someone who uses a third party auth system rather than the
> built-in authorizer so this should be configurable and opt-in.
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