Yes, always use three or a higher odd number of machines. It is best to have them on dedicated machines and unless the cluster is very large three small VPS machines with 512 MB RAM suffice. -----Original message----- From:Gili Nachum <gilinac...@gmail.com> Sent:Tue 10-06-2014 08:58 Subject:Recommended ZooKeeper topology in Production To:solr-user@lucene.apache.org; Is there a recommended ZooKeeper topology for production Solr environments?
I was planning: 3 ZK nodes, each on its own dedicated machine. Thinking that dedicated machines, separate from Solr servers, would keep ZK isolated from resource contention spikes that may occur on Solr. Also, if a Solr machine goes down, there would still be 3 ZK nodes to handle the event properly. If I want to save on resources, placing each ZK instance on the same box as Solr instance in considered common practice in production environments? Thanks!
