request.required.acks=-1 in fact is the strongest durability guarantee on the producer. It means the producer waits for all replicas to write the data before receiving an ack.
Thanks, Neha On Wednesday, April 24, 2013, Yu, Libo wrote: > Hi, > > I am running kafka-producer-perf-test.sh for performance test. > I notice this line from the log: > INFO Property request.required.acks is overridden to -1 > > So what does -1 mean in this case? Is acknowledgement enabled? > > In producer.properties, I set request.required.acks to 1 and started > the job. I still saw: > INFO Property request.required.acks is overridden to -1 > Then I I set request.required.acks to 0 and started the job. I got the > same log: > INFO Property request.required.acks is overridden to -1 > > Is it possible to turn on acknowledgement for this producer > Performance test? > BTW: For our application, we cannot afford losing any message and we > are only interested in acknowledged mode. > > Regards, > > Libo > >
