Hi, I'm struggling a bit with this KIP, because dropping support for rolling upgrades from old Kafka versions doesn't seem like something we should do in a minor release. But on the other hand, the next Kafka release won't have ZK at all. Maybe we should punt on this until and unless there is a security issue that requires some action from us.
I would also add, that a major ZK version bump is pretty risky. Last time we did this we hit several bugs. I remember we hit one where there was an incompatible change with regard to formatting (sorry, I can't seem to find the JIRA right now). Sorry, but for now I have to vote -1 until I can understand this better best, Colin On Thu, Feb 23, 2023, at 06:48, Divij Vaidya wrote: > Thanks for the KIP Christo. > > Having Zk 3.6 reach EOL in Dec 2022 is a good enough reason to upgrade, > hence I completely agree with the motivation. Your experiments have > demonstrated that the new version of Zk is stable at scale and the backward > compatibility risks are acceptable since Apache Kafka 2.4.x is an EOL > version. > > Vote +1 (non binding) > > -- > Divij Vaidya > > > > On Thu, Feb 23, 2023 at 3:32 PM Christo Lolov <christolo...@gmail.com> > wrote: > >> Hello! >> >> I would like to start the vote for KIP-902, which upgrades Zookeeper to >> version 3.8.1. >> >> The KIP can be found at >> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=240882784 >> >> The discussion thread is >> https://lists.apache.org/thread/5jbn2x0rtmqz5scyoygbdbj4vo0mpbw1 >> >> Thanks >> Christo
