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https://issues.apache.org/jira/browse/CASSANDRA-13041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nachiket Patil updated CASSANDRA-13041:
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Description: I don’t believe it is ever correct to remove a DC from the
system_auth replication settings while there are nodes up in that DC. Cassandra
should not allow this change if there are hosts which are currently members of
the cluster in that DC, as any request which is routed to these hosts will meet
an unavailable. Also dropping the keyspace system_auth should not be allowed.
(was: I don’t believe it is ever correct to remove a DC from the
{code}system_auth{code} replication settings while there are nodes up in that
DC. Cassandra should not allow this change if there are hosts which are
currently members of the cluster in that DC, as any request which is routed to
these hosts will meet an unavailable. Also dropping the keyspace system_auth
should not be allowed.)
> Do not allow removal of a DC from system_auth replication settings if the DC
> has active Cassandra instances
> -----------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-13041
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13041
> Project: Cassandra
> Issue Type: Improvement
> Components: Distributed Metadata
> Reporter: Nachiket Patil
> Assignee: Nachiket Patil
> Priority: Minor
> Fix For: 4.x
>
>
> I don’t believe it is ever correct to remove a DC from the system_auth
> replication settings while there are nodes up in that DC. Cassandra should
> not allow this change if there are hosts which are currently members of the
> cluster in that DC, as any request which is routed to these hosts will meet
> an unavailable. Also dropping the keyspace system_auth should not be allowed.
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