Hi, Did you not ask this question a while back? I may be mixing things... (hah, no, just checked) In short, it depends on a number of factors, such as index sizes, query rates, complexity of queries, amount of RAM, your target query latency, etc. etc. So there is no super clear cut answer. If you have some concrete numbers, that will be easier to answer :)
Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch ----- Original Message ---- > From: Phillip Farber <[EMAIL PROTECTED]> > To: solr-user@lucene.apache.org > Sent: Wednesday, October 8, 2008 5:34:58 PM > Subject: Practical number of Solr instances per machine > > > Hello everyone, > > What is the generally accepted number of solr instances it makes sense > to run on a single machine given solr/lucene threading? Servers now > commonly have 4 or 8 cpus. Obviously the more instances you run the > bigger your JVM heap needs to be and that takes away from OS cache. Is > the sweet spot just one instance per machine? What is the right way to > think about this issue? > > Thanks, > > Phil
