How to assign client-id to a particular kafka producer or topic?

Question

I know that quotas are based on client-id. Basically I want to run the kafka-producer-perf-test with a particular client id to test whether the quotas work properly.

How can I assign a client-id for a particular producer (or) partition?

Answer 1

When creating a producer, you can assign a unique value to client.id property

Properties props = new Properties();
props.put("bootstrap.servers", "localhost:9092");
props.put("client.id", "testclient001");
//set any additional properties.
Producer<String, GenericRecord> producer = new KafkaProducer<String, GenericRecord>(props);