If you can pause your Producers, simply change the partition count to 10 in the Kafka server properties file, and restart it. If you use the high-level consumer, it will automatically start draining all partitions that exist for a given topic.
And our Kafka producers always write to partition -1 for a given topic, meaning they never care about the partition count, and need no changes in circumstances like this. Philip On Thu, Jul 4, 2013 at 11:11 AM, Calvin Lei <ckp...@gmail.com> wrote: > Hi I have a few topics created with 1 partition. After running the cluster > for a few days, I want to increase the partition to 10 to improve the > consumer throughput. I learnt that it is not supported in 0.8. > > What is the recommendation of improving consumer throughput after a topic > is created and the data volume increased? > > Regards, > Cal