Hmmm. Maybe I'm not understanding what you're getting at, Jonathan, when you say 'There is no good way in Solr to run a query across multiple Solr indexes'.
What about the 'shards' parameter? That allows searching across multiple cores in the same instance, or shards across multiple instances. There are certainly implications here (like Relevance not being consistent across cores / shards), but it works pretty well for us... Thanks! Bob Sandiford | Lead Software Engineer | SirsiDynix P: 800.288.8020 X6943 | bob.sandif...@sirsidynix.com www.sirsidynix.com > -----Original Message----- > From: Jonathan Rochkind [mailto:rochk...@jhu.edu] > Sent: Wednesday, February 16, 2011 4:09 PM > To: solr-user@lucene.apache.org > Cc: Thumuluri, Sai > Subject: Re: Solr multi cores or not > > Solr multi-core essentially just lets you run multiple seperate > distinct > Solr indexes in the same running Solr instance. > > It does NOT let you run queries accross multiple cores at once. The > cores are just like completely seperate Solr indexes, they are just > conveniently running in the same Solr instance. (Which can be easier > and > more compact to set up than actually setting up seperate Solr > instances. > And they can share some config more easily. And it _may_ have > implications on JVM usage, not sure). > > There is no good way in Solr to run a query accross multiple Solr > indexes, whether they are multi-core or single cores in seperate Solr > doesn't matter. > > Your first approach should be to try and put all the data in one Solr > index. (one Solr 'core'). > > Jonathan > > On 2/16/2011 3:45 PM, Thumuluri, Sai wrote: > > Hi, > > > > I have a need to index multiple applications using Solr, I also have > the > > need to share indexes or run a search query across these application > > indexes. Is solr multi-core - the way to go? My server config is > > 2virtual CPUs @ 1.8 GHz and has about 32GB of memory. What is the > > recommendation? > > > > Thanks, > > Sai Thumuluri > > > > > >
