Hello! Zookeeper by itself is not demanding, but if something happens to your nodes that have Solr on it, you'll loose ZooKeeper too if you have them installed side by side. However if you will have 4 Solr nodes and 3 ZK instances you can get them running side by side.
-- Regards, Rafał Kuć Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch - ElasticSearch > Separate is generally nice because then you can restart Solr nodes > without consideration for ZooKeeper. > Performance-wise, I doubt it's a big deal either way. > - Mark > On Nov 21, 2012, at 8:54 AM, Marcin Rzewucki <mrzewu...@gmail.com> wrote: >> Hi, >> >> I have 4 solr collections, 2-3mn documents per collection, up to 100K >> updates per collection daily (roughly). I'm going to create SolrCloud4x on >> Amazon's m1.large instances (7GB mem,2x2.4GHz cpu each). The question is >> what about zookeeper? It's going to be external ensemble, but is it better >> to use same nodes as solr or dedicated micro instances? Zookeeper does not >> seem to be resources demanding process, but what would be better in this >> case ? To keep it inside of solrcloud or separately (micro instances seem >> to be enough here) ? >> >> Thanks in advance. >> Regards.
