How to check the performance of a 5 node(256 gb) kafka cluster?

[#1]

Hi 

Thanks for posting the question to cloudera commuinity.

It would be a little too vargue to say how to check the performance. There are two things I'd suggest to do:

1) Benchmark the performance with the built-in load testing tools such as ConsumerPerformance and EndToEndLatecy.

2) Monitor the Kafka performance with the avaiable metrics:

https://www.cloudera.com/documentation/kafka/latest/topics/kafka_metrics.html

Additionally, you may want to check the cloudera documentations on how to tune kafka broker, consumer and producers for better performance:

https://www.cloudera.com/documentation/kafka/latest/topics/kafka_performance.html

Hope above information helps.