Properties to use for Kafka producers. These properties are merged with a set of default properties before being used to create a producer. Properties specified here will override a value set in the default properties.

The default producer properties are as follows:

key.serializer=org.apache.kafka.common.serialization.StringSerializer
value.serializer=org.apache.kafka.common.serialization.StringSerializer
acks=all
retries=0
    

A default "bootstrap.servers" property should have been included when the Kafka provider was configured. This may be overridden here if desired.

The full set of producer properties may be found here.