If you want to start a KIP, you need to write one :) A Jira ticket is
not a KIP
https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals
-Matthias
On 10/6/25 10:26 AM, Ankur Sinha wrote:
Hi all,
I’d like to start the discussion for KAFKA-19759: Add built-in TTL
(Time-to-Live) support for Kafka Streams State Stores.
JIRA: https://issues.apache.org/jira/browse/KAFKA-19759
KIP Wiki: (will be created shortly)
Streams users often need per-key TTL functionality (e.g., for cache-like state,
per-key deduplication, or automatic cleanup).
Currently, this requires manual punctuators and tombstones.
This KIP proposes adding a built-in `withTtl(Duration ttl)` option to state
stores,
which would handle key expiration and changelog consistency automatically.
Please see the JIRA for full details and general analysis.
Looking forward for a discussion and talk.
Best regards,
Ankur Sinha
