Krishna, Did you run any admin tools after adding the node (I assume it is node 3), like partition-assignment? It is shown as the only one in ISR list but not in the replica list, which seems that the partition migration process was not completed.
You can verify if this is the case by checking your controller log and see if there are any exception / error entries. Guozhang On Thu, Jul 9, 2015 at 12:04 PM, Krishna Kumar <kku...@nanigans.com> wrote: > Hi > > We added a Kafka node and it suddenly became the leader and the sole > replica for some partitions, but it is not in the ISR > > Any idea how we might be able to fix this? We are on Kafka 0.8.2 > > Topic: topic1 Partition: 0 Leader: 2 Replicas: 2,1,0 Isr: 2,0,1 > Topic: topic1 Partition: 1 Leader: 3 Replicas: 0,2,1 > Isr: 3 > Topic: topic1 Partition: 2 Leader: 3 Replicas: 1,0,2 > Isr: 3 > Topic: topic1 Partition: 3 Leader: 2 Replicas: 2,0,1 > Isr: 2,0,1 > Topic: topic1 Partition: 4 Leader: 3 Replicas: 0,1,2 > Isr: 3 > Topic: topic1 Partition: 5 Leader: 1 Replicas: 1,2,0 > Isr: 1,2,0 > Topic: topic1 Partition: 6 Leader: 3 Replicas: 2,1,0 > Isr: 3 > Topic: topic1 Partition: 7 Leader: 0 Replicas: 0,2,1 > Isr: 0,1,2 > > > > > > > > -- -- Guozhang