Hi, I'm running version kafka_2.11-0.9.0.1 in a 2 broker configuration with 10 partitions that are replicated - replication.factor=2
Here's the output from 'kafkat partitions': Topic Partition Leader Replicas ISRs bookmarks 0 0 [0, 1] [0, 1] bookmarks 1 1 [1, 0] [1, 0] bookmarks 2 0 [0, 1] [0, 1] bookmarks 3 1 [1, 0] [1, 0] bookmarks 4 0 [0, 1] [0, 1] bookmarks 5 1 [1, 0] [1, 0] bookmarks 6 0 [0, 1] [0, 1] bookmarks 7 1 [1, 0] [1, 0] bookmarks 8 0 [0, 1] [0, 1] bookmarks 9 1 [1, 0] [1, 0] We monitor the disk writes and I only see writes at broker 0, and broker 1 sees none (not comparable at all). I do see comparable network traffic at the 2 brokers. Anything obvious I'm missing. Thanks, - Kiran