I have 3 brokers and a topic with replication factor of 3. Somehow all partitions ended up being on the same broker. I've created topic with 3 brokers alive, and they didn't die since then.
Even when i try to reassign it: bin/kafka-reassign-partitions.sh --zookeeper 10.80.42.147:2181--broker-list 0,1,2 --topics-to-move-json-file ~/reassign.txt --execute The leader of all partitions after that is still the single broker (first one). This is how my json file looks like: {"topics": [{"topic": "perf1"}], "version":1 } The command reports success: Successfully started reassignment of partitions Map([perf1,33] -> List(1, 0, 2), [perf1,13] -> List(2, 0, 1), [perf1,28] -> List(2, 1, 0), [perf1,20] -> List(0, 1, 2), [perf1,5] -> List(0, 2, 1), [perf1,14] -> List(0, 1, 2), [perf1,39] -> List(1, 0, 2), [perf1,19] -> List(2, 0, 1), [perf1,25] -> List(2, 0, 1), [perf1,43] -> List(2, 0, 1), [perf1,11] -> List(0, 2, 1), [perf1,8] -> List(0, 1, 2), [perf1,22] -> List(2, 1, 0), [perf1,16] -> List(2, 1, 0), [perf1,26] -> List(0, 1, 2), [perf1,41] -> List(0, 2, 1), [perf1,9] -> List(1, 0, 2), [perf1,27] -> List(1, 0, 2), [perf1,44] -> List(0, 1, 2), [perf1,34] -> List(2, 1, 0), [perf1,6] -> List(1, 2, 0), [perf1,1] -> List(2, 0, 1), [perf1,37] -> List(2, 0, 1), [perf1,24] -> List(1, 2, 0), [perf1,29] -> List(0, 2, 1), [perf1,32] -> List(0, 1, 2), [perf1,7] -> List(2, 0, 1), [perf1,17] -> List(0, 2, 1), [perf1,36] -> List(1, 2, 0), [perf1,0] -> List(1, 2, 0), [perf1,42] -> List(1, 2, 0), [perf1,4] -> List(2, 1, 0), [perf1,10] -> List(2, 1, 0), [perf1,30] -> List(1, 2, 0), [perf1,23] -> List(0, 2, 1), [perf1,18] -> List(1, 2, 0), [perf1,3] -> List(1, 0, 2), [perf1,35] -> List(0, 2, 1), [perf1,31] -> List(2, 0, 1), [perf1,12] -> List(1, 2, 0), [perf1,2] -> List(0, 1, 2), [perf1,40] -> List(2, 1, 0), [perf1,38] -> List(0, 1, 2), [perf1,15] -> List(1, 0, 2), [perf1,21] -> List(1, 0, 2)) But still nothing changes. I use ~/kafka-src/bin/kafka-topics.sh --zookeeper 10.80.42.147:2181 --describe --topic perf1 to check leaders. Thanks.