Hi Kafka Experts, (Sorry to send this question to DEV group, but it seems that I can not find related document in user manual.)
For official document ,I can find message sent guarantee as below. For *sync producer*, I think it is true but sync sent are very slow.(about 408 message per second if ack = all, 1000 message per second if ack = 1). batch and async sent could satisfy our throughput requirement, but I'm not sure if message sent ordering are guaranteed in *async *style. For some critical application, for example( replicate mysql binlog to kafka distributed committed log), binlog ordering are important(partitioned by database/table/PK). throughput also important. If I use async producer, partition the binlog by table and send them in batch. Is it safe for binlog ordering for a single table? Will async producer guarantee the send ordering? Regards Shawn Guarantees <http://kafka.apache.org/documentation.html#intro_guarantees>At a high-level Kafka gives the following guarantees: - Messages sent by a producer to a particular topic partition will be appended in the order they are sent. That is, if a message M1 is sent by the same producer as a message M2, and M1 is sent first, then M1 will have a lower offset than M2 and appear earlier in the log.
