Hi. I have a consumer group with five consumers, but only three are consuming. The topic has 25 partitions (5 brokers with 5 partitions each one), so it shouldn't be the problem the partitions quantity.
In zookeeper, I see the five consumers in /consumers/$GROUP/ids, but in /consumers/$GROUP/owners only three of them are owning partitions. If I restart the consumers, the first three to win the race, can get the partitions, and the other two don't get anything. I´m using Kafka 0.7.1. What could it be happening? Thanks!! Javier Iseruk
