in rcomp-kafka/src/main/java/org/apache/karaf/rcomp/kafka/ConfigMapper.java [64:74]
private void mapProducer() {
process("acks", "all");
process("compression.type", "none");
process("max.request.size", "2097152");
process("retries", "0");
process("batch.size", "16384");
process("buffer.memory", "33554432");
config.put("key.serializer", StringSerializer.class);
config.put("value.serializer", StringSerializer.class);
process("request.timeout.ms", "15000");
}