Hi, Hope you all are safe and well!
Before I start with the issue I am trying to solve, let me give you few details - OS: Ubuntu 18.0.4 ZK version: 3.5.9 Kafka version : confluent-kaka 6.2.4-1 So, we have multiple 3 node setup of Zookeeper nodes to manage multiple Kafka Cluster and we ran into an issue when the AZ in which both the ZK leader as well as the Kafka controller broker had an outage. The issue is that the ZK followers took approximately 16 mins to realise they need to undergo an election and form a Zookeeper cluster with the remaining 2 nodes in the cluster. This also resulted in an outage to the Kafka users/clients as it was also down for the whole 16mins. We would like to - 1. Avoid this issue either by moving the leadership to one of the followers 2. Know if there is any parameter setting to help the ZK cluster to identify a new leader by itself Note: Please let me know if I need to share any Zookeeper / Kafka logs or anything else to look further into this. I read the https://zookeeper.apache.org/doc/r3.5.3-beta/zookeeperReconfig.html <https://zookeeper.apache.org/doc/r3.5.3-beta/zookeeperReconfig.html>. Though it sounds like it might serve the purpose 1 above, I am not sure if that is the way to go here for my requirement as it more or less speaks about dynamically adding/removing zk nodes into an existing cluster. Hoping to find a fix for this issue at the earliest. Thanking you in advance! Regards, Rijo Roy
