Actually we don't have much load on the server (like the usage currently is quite low) but user queries are very complex e.g. long phrases/multiple proximity/wildcard etc so I know these values need to be tried out but I wanted to see whats the right 'start' so that I am not way off.
Also regarding Solr cores just to clarify they are totally different indexes (not 2 parts of one index) so the queries on them are separate do you still think its better to keep them on two cores? Thanks a lot! On Wed, Jan 19, 2011 at 9:43 PM, Erick Erickson <erickerick...@gmail.com>wrote: > You're better off using two cores on the same Solr instance rather than two > instances of Tomcat, that way you avoid some overhead. > > The usual advice is to monitor the Solr caches, particularly for evictions > and > size the Solr caches accordingly. You can see these from the admin/stats > page > and also by mining the logs, looking particularly for cache evictions. > Since > cache > usage is so dependent on the particular installation and usage pattern > (particularly > sorting and faceting), "general" advice is hard to give. > > Hope this helps > Erick > > On Wed, Jan 19, 2011 at 2:25 AM, Salman Akram < > salman.ak...@northbaysolutions.net> wrote: > > > In case it helps there are two SOLR indexes (160GB and 700GB) on the > > machine. > > > > Also these are separate indexes and not shards so would it help to put > them > > on two separate Tomcat servers on same machine? This way I think one > index > > won't be affecting others cache. > > > > On Wed, Jan 19, 2011 at 12:00 PM, Salman Akram < > > salman.ak...@northbaysolutions.net> wrote: > > > > > Hi, > > > > > > I know this is a subjective topic but from what I have read it seems > more > > > RAM should be spared for OS caching and much less for SOLR/Tomcat even > on > > a > > > dedicated SOLR server. > > > > > > Can someone give me an idea about the theoretically ideal proportion > b/w > > > them for a dedicated Windows server with 32GB RAM? Also the index is > > updated > > > every hour. > > > > > > -- > > > Regards, > > > > > > Salman Akram > > > > > > > > > > > > -- > > Regards, > > > > Salman Akram > > > -- Regards, Salman Akram
