The confluent blog <http://blog.confluent.io/2014/12/02/whats-coming-in-apache-kafka-0-8-2/> mentions that the the batching is done whenever possible now. "The sync producer, under load, can get performance as good as the async producer. " Does it mean that kafka 0.8.2 guarantees that the sequence of broker-received-message is the same as the async-call sequence by the producer? If I have code as follows to send messages to the same topic partition:
producer.send(msg1); prodcuer.send(msg2); producer.send(msg3); If all three calls succeed, is it possible that broker received msg3 before msg2? On Mon, Mar 9, 2015 at 12:17 AM, Yu Yang <yuyan...@gmail.com> wrote: > Hi, > > Kafka 0.8.1.1 allows us to send a list of messages in sync mode: > > public void send(List<KeyedMessage<K,V> messages); > > I did not find a counter-part of this api in the new producer that is > introduced in kafka 0.8.2. It seems that we can use the following method > to do sync send in kafka 0.8.2: > > producer.send(new ProducerRecord(...))).get(); > > My understanding is that we can only send one message at a time in > sync-mode. This will limit the throughput of kafka producer. Is there a way > to send a batch of messages in sync mode using kafka 0.8.2 producer? Is > there any study on the throughput of Kafka 0.8.2 producer, comparing with > kafka 0.8.1.1? > > Thanks! > > Regards, > Yu > > >
