Sometime after connecting a second consumer with the same group id, I get the error
"Consumer instance not found" (code: 40403).
I noticed that when connecting the second consumer, my request to receive new messages from Kafka freezes for both consumers. I am convinced that the error I am getting is the result of the problem, not the cause because, after the request freezes, a timeout passes for the consumer and it is automatically deleted. However, I don't understand why the request hangs.
At the time of the problem, Kafka's queue is empty.
The configuration is set to:
zookeeper.connect
bootstrap.servers
Other values are set by default.
I thought this was due to the restriction of consumer threads (consumer.threads), but the documentation says that the default value is 50.
