Hi Guangle, Replication is only introduced in 0.8, with 0.7 there should not have leader / follower replicas. Could you verify the version of your Kafka cluster?
Guozhang On Mon, Sep 29, 2014 at 4:30 PM, Guangle Fan <fanguan...@gmail.com> wrote: > Hi, All > > We have some old kafka nodes that are still running 0.7. > > We disable the replica of topics there. Recently we added some node brokers > to that cluster, I found new nodes won't got written or read even though > it's registered correctly in zookeeper. > > I think in this case, it's because all these nodes became followers of > partitions. I need to rebalance leadership of partitions across all > brokers. > > If my thought is correct, how shall I rebalance leadership ? > > Thanks! > > Guangle > -- -- Guozhang