Hello. I faced an issue during the Kafka upgrade that I can’t fix so far.
I have the Confluentinc Kafka single test broker deployed onto OCP4. My goal is to upgrade from the ConfluentInc cp-enterprise-kafka v5.5.1(Kavka v2.3.0-IV1) to cp-kafka v7.5.1(Kafka v3.5.0). Upgrading in accordance to https://kafka.apache.org/documentation/#upgrade_3_5_0 . Initial config(Kafka is up and running): ``` confluentinc image: docker-public-virtual.docker.devstack.vwgroup.com/confluentinc/cp-kafka confluentinc imageTag: 7.5.1 server property inter.broker.protocol.version: "2.3-IV1" log.message.format.version: "2.3-IV1" ``` Updated config(error, see below): ``` confluentinc image: same confluentinc imageTag: same server property inter.broker.protocol.version: "3.5" #omitting the log.message.format.version for 3.* ``` Issue: *Exiting Kafka due to fatal exception org.apache.kafka.common.config.ConfigException: Invalid value 3.5 for configuration inter.broker.protocol.version: Version 3.5 is not a valid version`* UPD: Similar error occurs while trying to upgrade to *v6.0.5* first (pls see the Confluent vs Broker protocol versions vs message format versions compatibility table from https://docs.confluent.io/platform/current/installation/upgrade.html#steps-for-upgrading-to-version-x-zk-mode): ``` confluentinc image: docker-public-virtual.docker.devstack.vwgroup.com/confluentinc/cp-kafka confluentinc imageTag: 6.0.5 server property inter.broker.protocol.version: "2.6" server property log.message.format.version: "2.6" ``` Issue: *Invalid value 2.6 for configuration inter.broker.protocol.version: Version 2.6 is not a valid version`* This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.
