Thanks for the KIP.
I don't have any comments/questions at this point about it. Seems pretty
straightforward to me.
-Matthias
On 2/17/26 7:33 AM, 안상혁 wrote:
Hi Kafka Community!
I would like to start a discussion for KIP-1283.
This KIP proposes updating the KafkaStreams#cleanUp() contract to explicitly
preserve process identity metadata and lock files, avoiding misleading WARN
logs while ensuring stable process identity across restarts.
Currently, KafkaStreams#cleanUp() deletes the local state but attempts to
delete the application directory itself as the final step.
However, this directory deletion often fails because expected metadata files
(kafka-streams-process-metadata and .lock) remain.
This results in misleading WARN logs, causing confusion for users and operators who interpret it as a local state cleanup failure.
This KIP clarifies that retaining these specific files is considered a
successful cleanup and suppresses the unnecessary warnings.
KIP LINK: https://cwiki.apache.org/confluence/x/mYw8G
Looking forward to community's feedback!
Best regards,
Sanghyeok An
