[jira] [Created] (CASSANDRA-16422) Unable to ALTER KEYSPACE while decommissioned/assassinated nodes are in gossip

["Jon Meredith (Jira)" <ji...@apache.org>]

Jon Meredith created CASSANDRA-16422:
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             Summary: Unable to ALTER KEYSPACE while decommissioned/assassinated nodes are in gossip
                 Key: CASSANDRA-16422
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16422
             Project: Cassandra
          Issue Type: Improvement
          Components: Consistency/Bootstrap and Decommission
            Reporter: Jon Meredith
            Assignee: Jon Meredith


As part of Transient Replication added in CASSANDRA-14404, {{ALTER KEYSPACE}} had a validation check added to verify no range movement was taking place.

The check requires all nodes to be in {{NORMAL}} state. When a node is decommissioned or assassinated then it will remain in gossip for 3 days in {{LEFT}} state (by default), preventing any keyspace alteration until it has expired from gossip, even though it is safe to make the change.

The validation condition should be changed to all nodes being in {{NORMAL}} or {{LEFT}} state instead.




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