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https://issues.apache.org/jira/browse/CASSANDRA-12912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15665217#comment-15665217
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Jeremiah Jordan commented on CASSANDRA-12912:
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I would do this as a CQL native protocol warning along with some kind of
throttled warning in the system logs.
> Warn when the 'cassandra' superuser logs in
> -------------------------------------------
>
> Key: CASSANDRA-12912
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12912
> Project: Cassandra
> Issue Type: Bug
> Reporter: Brandon Williams
>
> I see this all the time: "We set LOCAL_ONE, but keep getting 'Cannot achieve
> consistency level QUORUM'" This is inevitably due to authenticating as the
> 'cassandra' superuser, which really should only be done once: to create a
> different superuser, so that QUORUM is no longer required. A seasoned C*
> professional will catch this quickly, but it would be better to log a warning
> every time the 'cassandra' user logs in, since again that should optimally be
> a one-time event.
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