Say if you have 3 brokers and 2 consumers in a consumer group, you may choose 6. So when one broker is offline, the load is still well balanced. If you use 12, when you add a fouth broker, the load is still well balanced.
Regards, Libo -----Original Message----- From: Tom Brown [mailto:tombrow...@gmail.com] Sent: Wednesday, August 21, 2013 10:07 AM To: users@kafka.apache.org Subject: Best partition configuration I have not been able to find reliable advice regarding how many partitions should exist on a single broker. How many partitions have you used, and what kind of throughput have you seen? Thanks in advance! --Tom