title: Creating new Kafka Producer object for every request
body: <p>I am developing a rest service which will publish event to kafka (using java client) on the basic of topic, different topic can have different no. of brokers.
  I'm creating Producer for each and every request to send message into Kafka. I feel this is inefficient and can be achieved in more manageable by maintaining a pool of producers, will it really help? Please provide suggestions.</p>