You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@cassandra.apache.org by "shanizta siddiqua (Jira)" <ji...@apache.org> on 2026/03/31 08:48:00 UTC
[jira] [Assigned] (CASSJAVA-124) CEP-59: Add GRACEFUL_DISCONNECT support to Java driver
[ https://issues.apache.org/jira/browse/CASSJAVA-124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
shanizta siddiqua reassigned CASSJAVA-124:
------------------------------------------
Assignee: shanizta siddiqua (was: Rishabh Saraswat)
> CEP-59: Add GRACEFUL_DISCONNECT support to Java driver
> ------------------------------------------------------
>
> Key: CASSJAVA-124
> URL: https://issues.apache.org/jira/browse/CASSJAVA-124
> Project: Apache Cassandra Java driver
> Issue Type: New Feature
> Reporter: Rishabh Saraswat
> Assignee: shanizta siddiqua
> Priority: Normal
>
> See [CEP-59 |https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=406619103]
> See [Server side |https://issues.apache.org/jira/browse/CASSANDRA-21191]
> Adds GRACEFUL_DISCONNECT support to the Java driver. The driver now
> detects server-side graceful disconnect support and subscribes to the
> event on all connections, allowing it to react gracefully when a node
> is shutting down.
> Flow:
> 1. Driver sends OPTIONS to server
> 2. If SUPPORTED response contains GRACEFUL_DISCONNECT: ["true"], driver
> adds GRACEFUL_DISCONNECT to event types before sending REGISTER
> 3. REGISTER is sent to server subscribing to GRACEFUL_DISCONNECT event.
> 4. Upon receiving GRACEFUL_DISCONNECT event on a connection, driver marks
> that node as down in the load balancing policy so new requests are
> routed to other healthy nodes
> 5. In-flight requests on the draining connection complete normally
> 6. Driver closes the connection once all in-flight requests are done
> Since the driver already maintains connections to all nodes, no
> reconnection is needed — requests are simply routed to already-connected
> healthy nodes.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscribe@cassandra.apache.org
For additional commands, e-mail: commits-help@cassandra.apache.org