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Producers
How should I set metadata.broker.list?
The broker list provided to the producer is only used for fetching metadata. Once the metadata response is received, the producer will send produce requests to the broker hosting the corresponding topic/partition directly, using the ip/port the broker registered in ZK. Any broker can serve metadata requests. The client is responsible for making sure that at least one of the brokers in metadata.broker.list is accessible. One way to achieve this is to use a VIP in a load balancer. If brokers change in a cluster, one can just update the hosts associated with the VIP.
Why do I get QueueFullException in my producer when running in async mode?
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