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How To Enable - Idempotent Producer in Kafka ?


In this post , we will see How To Enable - Idempotent Producer in Kafka . Idempotent Producer feature handles the situation - when due to network failure or any other reasons , the sync between Producer and Kafka broker gets broken . Thereby impacting the confusion whether the last messages were delivered (and replicated) or not.

As a matter of fact , if your Kafka configuration or set-up uses Complete in-sync replicas or acks=all , then you Must Potentially Enable this Feature. This Simplifies the complete situation of Debugging when messages are lost. And saves a lot of time of the debugger or the developer.   To enable the Idempotent Producer feature , do the following -

  • In the producer configuration  , add the below flag


enable.idempotence=true
 

  • Also Add very HIGH values for the Flag -


message.send.max.retries
 

  • Since Idempotent Producer is used in case of full-set in-sync is expected , you also need to set the following flag


Acks=All
 

  • Leave below field without using any value so that Default value is taken up Automatically . Generally the value is taken between 0 to 5. But for safe side , its better to keep it default and let the system choose the appropriate one.


max.in.flight.requests.per.connection
  Hope this post helps you to understand - How To Enable - Idempotent Producer in Kafka .

  Additional Read - 

   


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