Our setup is a three node cluster, we have a Kafka 0.7.2 (with 10 partitions per node) and Zookeeper 3.3.4 on each node. I'm seeing that only one broker is being used to actually send messages through. We're seeing this behavior after a restart and deletion of the kafka data (/tmp/kafka-logs). In the past its used all three and worked fine.
Is this normal? (i.e. it takes some time to spread across the cluster) Or should it distribute stuff immediately? Karl