[jira] [Created] (CASSANDRA-12344) Forward writes to replacement node with same address during replace

["Paulo Motta (JIRA)" <ji...@apache.org>]

Paulo Motta created CASSANDRA-12344:
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             Summary: Forward writes to replacement node with same address during replace
                 Key: CASSANDRA-12344
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12344
             Project: Cassandra
          Issue Type: Improvement
          Components: Coordination, Distributed Metadata
            Reporter: Paulo Motta


On CASSANDRA-8523 it was added support to forwarding writes to a replacement node via a new gossip state {{BOOTSTRAPPING_REPLACE}}.

Currently this is limited to replacement nodes with a different address of the original node, because if a replacement node with the same address of a normal endpoint joins gossip with a non-dead state, it will become alive in the Failure Detector and reads will be forwarded to it before the node is ready to serve reads.

This ticket is to add support to forwarding writes to replacement nodes with the same IP address as the original node.

The initial idea is to allow marking a node as unavailable for reads on {{TokenMetadata}}, what will allow the replacement node with the same IP join gossip without having reads forwarded to it. This will be enabled by CASSANDRA-11559.



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