[KAFKA-14661] Upgrade Zookeeper to 3.8.2

• Type: Improvement
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 3.6.0
• Component/s: packaging
• Assignee: Christo Lolov
• Reporter: Divij Vaidya
• Created: 30/Jan/23 17:31
• Updated: 27/Sep/23 10:31
• Resolved: 01/Aug/23 14:11

Description

Current Zk version (3.6.x) supported by Apache Kafka has been EOL since December 2022 [1]

Users of Kafka are facing regulatory hurdles because of using a dependency which is EOL, hence, I would suggest to upgrade this in all upcoming releases (including patch releases of 3.3.x and 3.4.x versions).

Some things to consider while upgrading (as pointed by ijuma at [2]):

1. If we upgrade the zk server to 3.8.1, what is the impact on the zk clients. That is, what's the earliest zk client version that is supported by the 3.8.x server?
2. We need to ensure there are no regressions (particularly on the stability front) when it comes to this upgrade. It would be good for someone to stress test the system a bit with the new version and check if all works well.

[1] https://zookeeper.apache.org/releases.html 

 [2]https://github.com/apache/kafka/pull/12620#issuecomment-1409028650 

Issue Links

• fixes: KAFKA-15512 EOL zookeeper component in kafka
• links to: GitHub Pull Request #13260