Kafka pods failing

If kafka pods are failing with

Session 0x0 for sever localhost/0:0:0:0:0:0:0:1:2181, Closing socket connection. Attempting reconnect except it is a SessionExpiredException.
java.net.ConnectException: Connection refused

and zookeeper pods are silently (pods still green) failing with PKIX cert verification issue, steps to fix are:

1. Delete Secrets:

   1. gv-kafka-cluster-cluster-operator-certs

   2. gv-kafka-cluster-entity-topic-operator-certs

   3. gv-kafka-cluster-entity-user-operator-certs

   4. gv-kafka-cluster-kafka-brokers

2. Wait for the Operator to recreate these Secrets

3. Delete Pods:

   1. gv-kafka-cluster-zookeeper-0

   2. gv-kafka-cluster-kafka-0

4. Wait for them to be recreated

5. Redeploy all services which are using kafka - forcing them to recreate missing topics. (For example classification pipeline won’t full start if regex topics are missing )