Navdeep Brar created KAFKA-6229:
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Summary: Controller node is not switched in ZK when existing is
blocked using iptables
Key: KAFKA-6229
URL: https://issues.apache.org/jira/browse/KAFKA-6229
Project: Kafka
Issue Type: Bug
Reporter: Navdeep Brar
When controller node is blocked on network, ZK has no information that
controller went down and doesn't switch to new controller (other broker).
- This only happens when connection is blocked using iptables
- if kafka service is brought down on controller node or even killed, then ZK
very well acknowledges it and switches to new controller
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