Hi Paweł, Here’s a blog I wrote a while back about Kafka Queues in 4.0, hope that helps:
https://www.instaclustr.com/blog/apache-kafka-4-0-share-groups-what-you-need-to-know-about-queues-for-kafka/ Regards, Paul Brebner From: Paweł Szymczyk <[email protected]> Date: Monday, 6 October 2025 at 5:08 am To: [email protected] <[email protected]> Subject: Queues for Kafka Early Access Release Notes confusion EXTERNAL EMAIL - USE CAUTION when clicking links or attachments Hi guys I am playing right now with Shared Consumer and I am following the Queues for Kafka (KIP-932) - Early Access Release Notes <https://urldefense.com/v3/__https://cwiki.apache.org/confluence/display/KAFKA/Queues*for*Kafka*(KIP-932)*-*Early*Access*Release*Notes__;KysrKysrKys!!Nhn8V6BzJA!XtokZwuvZKeX19tspnPXo1gWhFAoTUOK9855rNz3351xr_jL1SbBedJqxgXIIVu9Epsaw6kxK787UHKrxXvTN5bsuSegBXA6$ > manual. To make it fly I had to add group.share.enable=true configuration parameter to the server.properties file, this is not mentioned in the manual. Without this configuration kafka-console-share-consumer.sh is throwing and exception: pawel@DESKTOP-3T909GL:~/kafka_2.13-4.1.0$ bin/kafka-console-share-consumer.sh --bootstrap-server localhost:9092 --topic quickstart-events [2025-10-05 20:02:22,464] WARN Share groups and KafkaShareConsumer are part of a preview feature introduced by KIP-932, and are not recommended for use in production. (org.apache.kafka.clients.consumer.internals.ShareConsumerDelegateCreator) [2025-10-05 20:02:22,863] ERROR [ShareConsumer clientId=console-share-consumer, groupId=console-share-consumer] ShareGroupHeartbeatRequest failed due to unsupported version: The cluster does not support the share group protocol. To use share groups, the cluster must have the share group protocol enabled. (org.apache.kafka.clients.consumer.internals.ShareHeartbeatRequestManager) [2025-10-05 20:02:22,864] ERROR [ShareConsumer clientId=console-share-consumer, groupId=console-share-consumer] Member 4vuv_uWATL6l4NgYQ4GTGw with epoch 0 transitioned to fatal state (org.apache.kafka.clients.consumer.internals.ShareMembershipManager) [2025-10-05 20:02:27,580] ERROR Error processing message, terminating consumer process: (org.apache.kafka.tools.consumer.ConsoleShareConsumer) org.apache.kafka.common.errors.UnsupportedVersionException: The cluster does not support the share group protocol. To use share groups, the cluster must have the share group protocol enabled. Processed a total of 0 messages Could you confirm that indeed this configuration parameter is missing in the manual so I can update confluence page? -- Best regards Paweł Szymczyk
