One cause of out-of-memory is multiple simultaneous requests. If you limit the query stream to one or two simultaneous requests, you might fix this. No, Solr does not have an option for this. The servlet containers have controls for this that you have to dig very deep to find.
Lance Norskog -----Original Message----- From: Grant Ingersoll [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 06, 2008 5:19 AM To: solr-user@lucene.apache.org Subject: Re: Help optimizing On May 3, 2008, at 1:06 PM, Daniel Andersson wrote: > Hi (again) people > > We've now invested in a server with 8 GB of RAM after too many > OutOfMemory-errors. > > Our database/index is 3.5 GB and contains 4,352,471 documents. Most > documents are less than 1 kb. When performing a search, the results > vary between 1.5 seconds up to 60 seconds. > > I don't have a big problem with 1.5 seconds (even though below 1 would > be nice), but 60 seconds it just.. well, scary. Is this pure Solr time or overall application time? I ask, b/c it is often the case that people are measuring application time and the problem lies in the application, so I just want to clarify. Also, have you done any profiling to see where the hotspots are? -Grant
