[CASSANDRA-13041] Do not allow removal of a DC from system_auth replication settings if the DC has active Cassandra instances

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Duplicate
• Fix Version/s: 5.x
• Component/s: Legacy/Distributed Metadata
• Change Category: Operability
• Complexity: Normal
• Assignee: Unassigned
• Reporter: Nachiket Patil
• Created: 14/Dec/16 02:14
• Updated: 05/Jun/23 19:59
• Resolved: 04/Jun/23 17:03

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.

Issue Links

• links to: GitHub Pull Request #2384