Rishabh Saraswat created CASSANDRA-21204:
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Summary: CEP-59: Advertise GRACEFUL_DISCONNECT support in
SUPPORTED response
Key: CASSANDRA-21204
URL: https://issues.apache.org/jira/browse/CASSANDRA-21204
Project: Apache Cassandra
Issue Type: Sub-task
Components: Messaging/Client
Reporter: Rishabh Saraswat
Assignee: Rishabh Saraswat
Depends on: CASSANDRA-21203
When graceful_disconnect_enabled=true, the server now advertises
GRACEFUL_DISCONNECT: ["true"] in the SUPPORTED response to OPTIONS requests.
This allows drivers to discover feature support before deciding whether
to subscribe via REGISTER.
No behavior change for drivers that don't recognize the new key — unknown
keys in SUPPORTED are ignored per the native protocol spec.
No new server-side tests added — feature is verified end-to-end via
Java driver receiving and parsing the GRACEFUL_DISCONNECT option correctly
in the SUPPORTED response.
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