Agreed. We use a cloudera distribution of zookeeper, that is versioned at 3.4.5 (plus a bunch of backported patches) with kafka 2.4 and haven’t had any issues.
> On Jul 23, 2020, at 1:19 PM, Andrey Klochkov <akloch...@liftoff.io> wrote: > > We are running a separate ZK cluster and its version is not really tied to > the version of Kafka we're using. > > I have seen the Confluent compatibility matrix and based on that our > *current* version of Kafka is not compatible with our version of ZK, and we > haven't seen any problems with that. My suspicion is that Confluent might > be using some of the newer ZK features such as e.g. dynamic > configuration and that's where their requirements come from, but that > doesn't mean Kafka requires the versions of ZK that Confluent lists as > required for the Confluent platform. > > On Thu, Jul 23, 2020 at 1:06 PM M. Manna <manme...@gmail.com> wrote: > >> Hi, >> >> AFAIK, ZK is packed with Kafka. So if you upgrade to 2.4.1 you’ll get what >> is in 2.4.1. >> >> It’s a little different however, if you’re hosting ZK in a different host >> running independently of Kafka. >> >> What’s your situation ? >> >> >> >> On Thu, 23 Jul 2020 at 21:02, Andrey Klochkov <akloch...@liftoff.io> >> wrote: >> >>> Hello, >>> We're upgrading our Kafka from 1.1.0 to 2.4.1 and I'm wondering if ZK >> needs >>> to be upgraded too (we're currently on 3.4.6). The upgrade guide says >> that >>> "kafka has switched to the XXX version of ZK" but never says if switching >>> to a newer ZK is mandatory or not. What are the guidelines on keeping >> Kafka >>> and ZK compatible? >>> >>> -- >>> Andrey Klochkov >>> >> > > > -- > Andrey Klochkov
