Sharad, At LinkedIn, the mirroring cluster accesses ZK in another DC remotely. So far, we haven't seen any problem with this setup. We haven't used ZK observers yet, but it could be a good idea. One thing is that the mirroring cluster also writes to the remote ZK to checkpoint the consumer offset. Not sure if observers help here.
Jun On Tue, Oct 11, 2011 at 3:04 AM, Sharad Agarwal <sharad.apa...@gmail.com>wrote: > I am trying to deploy kafka cluster in two data centers, one being the > mirror of another. I have read that Linked-in also does similar kind of > mirroring. I am not sure about the zookeeper cluster deployment. Having > zookeeper clients talking over WAN is not recommended. Do you use zookeeper > observers? > > Sharad >