let’s assume that I have a 3-node Kafka cluster and a 5-node ZooKeeper cluster. I wonder what would happen if the zookeeper quorum is lost (e.g. 3 zookeeper nodes are down). Since KIP-500 is in the room: I am referring to Kafka v2.7 or earlier.
My assumption is that the cluster remains writable and consumable for all producers and consumers. Additionally I assume that I won’t be able to create new topics, acls, quotas etc. I’m not sure what would happen if a broker dies now, as ZooKeeper is required for leader elections as far as I know.
Couldn’t find any documentation that goes into detail here.