Decrease event duplications in Kafka

[GenTang]

Feature Request

Is your feature request related to a problem? Please describe:

Currently, when an event is sent to Ligase, there are almost 5 duplications in Kafka.

As Ligase is heavily based on Kafka, when there are some modifications on event, we read event from Kafka and then producer new one to Kafka. Therefore, the 5 duplications of event is caused by some minor modifications of event which should be optimized into fewer operation.

Describe the feature you'd like:

Decrease event duplications in Kafka, probably 2-3 duplications is ideal.