Re: Hardware planning

2014-03-15 Thread Carlile, Ken
I'd rather not purchase dedicated hardware for ZK if I don't absolutely have to, unless I can use it for multiple clusters (ie Kafka, HBase, other things that rely on ZK). Would adding more cores help with ZK on the same machine? Or is that just a waste of cores, considering that it's java under

Re: Hardware planning

2014-03-15 Thread Ray Rodriguez
Imagine a situation where one of your nodes running a kafka broker and zookeeper node goes down. You now have to contend with two distributed systems that need to do leader election and consensus in the case of a zookeeper ensemble and partition rebalancing/repair in the case of a kafka cluster so