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How to effectively make use of concurrency factor to process the messages faster.

 
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Hey Brian

I am excited to read your book. So far have tried few things with Kafka along with Spring.
Few problems faced are Kafka lag, and I wonder how can we fastforward the offset if needed be?
How to effectively make use of concurrency factor to process the messages faster.

Also had another question around processing a message only once, I have a scenario where have written db triggers to which our application is listening. And since we have multiple instances of application running. Each instance processes the trigger and submits it to Kafka topic.  How can we make sure they message is written only once?

Regards
Nitish
 
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