in org.apache.aries.events.kafka/src/main/java/org/apache/aries/events/kafka/KafkaMessaging.java [96:107]
public void activate(KafkaEndpoint endPoint) {
this.endPoint = endPoint;
producerConfig = new HashMap<>();
producerConfig.put(KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
producerConfig.put(VALUE_SERIALIZER_CLASS_CONFIG, ByteArraySerializer.class);
producerConfig.put(BOOTSTRAP_SERVERS_CONFIG, endPoint.kafkaBootstrapServers());
// We favour durability over throughput
// and thus requires full acknowledgment
// from replica leader and followers.
producerConfig.put(ACKS_CONFIG, "all");
producerConfig = unmodifiableMap(producerConfig);
}