I have 5 broker kafka cluster. Replication factor = 3, Number of partition =
12, Min Insync repica (ISR) = 3
First output is when all server are up and running. Second output is when I
bring down server id = 4. Another server from ISR take server 4's place as
leader of partition, so that's good. I was expecting another broker will join
ISR in place for server 4. Why doesn't that happen? Since min ISR is 3, I
cannot publish to certain partitions of the topic.
When server 4 comes back up, it starts to work fine.
./bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic xxx
Topic:xxx PartitionCount:12 ReplicationFactor:3 Configs:
Topic: xxx Partition: 0 Leader: 5 Replicas: 5,2,3 Isr: 3,2,5
Topic: xxx Partition: 1 Leader: 1 Replicas: 1,3,4 Isr: 3,4,1
Topic: xxx Partition: 2 Leader: 2 Replicas: 2,4,5 Isr: 2,5,4
Topic: xxx Partition: 3 Leader: 3 Replicas: 3,5,1 Isr: 5,3,1
Topic: xxx Partition: 4 Leader: 4 Replicas: 4,1,2 Isr: 2,4,1
Topic: xxx Partition: 5 Leader: 5 Replicas: 5,3,4 Isr: 3,5,4
Topic: xxx Partition: 6 Leader: 1 Replicas: 1,4,5 Isr: 5,4,1
Topic: xxx Partition: 7 Leader: 2 Replicas: 2,5,1 Isr: 5,2,1
Topic: xxx Partition: 8 Leader: 3 Replicas: 3,1,2 Isr: 3,2,1
Topic: xxx Partition: 9 Leader: 4 Replicas: 4,2,3 Isr: 3,2,4
Topic: xxx Partition: 10 Leader: 5 Replicas: 5,4,1 Isr: 5,4,1
Topic: xxx Partition: 11 Leader: 1 Replicas: 1,5,2 Isr: 5,2,1
./bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic xxx
Topic:xxx PartitionCount:12 ReplicationFactor:3 Configs:
Topic: xxx Partition: 0 Leader: 5 Replicas: 5,2,3 Isr: 3,2,5
Topic: xxx Partition: 1 Leader: 1 Replicas: 1,3,4 Isr: 3,1
Topic: xxx Partition: 2 Leader: 2 Replicas: 2,4,5 Isr: 2,5
Topic: xxx Partition: 3 Leader: 3 Replicas: 3,5,1 Isr: 5,3,1
Topic: xxx Partition: 4 Leader: 1 Replicas: 4,1,2 Isr: 2,1
Topic: xxx Partition: 5 Leader: 5 Replicas: 5,3,4 Isr: 3,5
Topic: xxx Partition: 6 Leader: 1 Replicas: 1,4,5 Isr: 5,1
Topic: xxx Partition: 7 Leader: 2 Replicas: 2,5,1 Isr: 5,2,1
Topic: xxx Partition: 8 Leader: 3 Replicas: 3,1,2 Isr: 3,2,1
Topic: xxx Partition: 9 Leader: 2 Replicas: 4,2,3 Isr: 2,3
Topic: xxx Partition: 10 Leader: 5 Replicas: 5,4,1 Isr: 5,1
Topic: xxx Partition: 11 Leader: 1 Replicas: 1,5,2 Isr: 5,2,1
./bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic xxx
Topic:xxx PartitionCount:12 ReplicationFactor:3 Configs:
Topic: xxx Partition: 0 Leader: 5 Replicas: 5,2,3 Isr: 3,2,5
Topic: xxx Partition: 1 Leader: 1 Replicas: 1,3,4 Isr: 3,1,4
Topic: xxx Partition: 2 Leader: 2 Replicas: 2,4,5 Isr: 2,5,4
Topic: xxx Partition: 3 Leader: 3 Replicas: 3,5,1 Isr: 5,3,1
Topic: xxx Partition: 4 Leader: 4 Replicas: 4,1,2 Isr: 2,1,4
Topic: xxx Partition: 5 Leader: 5 Replicas: 5,3,4 Isr: 3,5,4
Topic: xxx Partition: 6 Leader: 1 Replicas: 1,4,5 Isr: 5,1,4
Topic: xxx Partition: 7 Leader: 2 Replicas: 2,5,1 Isr: 5,2,1
Topic: xxx Partition: 8 Leader: 3 Replicas: 3,1,2 Isr: 3,2,1
Topic: xxx Partition: 9 Leader: 4 Replicas: 4,2,3 Isr: 2,3,4
Topic: xxx Partition: 10 Leader: 5 Replicas: 5,4,1 Isr: 5,1,4
Topic: xxx Partition: 11 Leader: 1 Replicas: 1,5,2 Isr: 5,2,1
Thanks,
Shri
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