Hi Thanks for the answers.
Really, I didn't showed you basic informations. I used the PostgreSQL 8.4. The server configuration was: Processor: Intel Xeon Processor W3570 Quad Core Processor Mem: 20GB Network Interface: Gigabit HD: 12 x 1 TB (RAID1+0) OS: Debian GNU/Linux, kernel 2.6.26-2-64 The client machines has similar configuration. The error message was: "Erro Conexão: A tentativa de conexão falhou." or "Erro Conexão: FATAL: connection limit exceeded for non-superusers" I used the logs of my java application used to simulate the clients. Thanks Jorge On Fri, Dec 3, 2010 at 12:54 PM, Kevin Grittner <kevin.gritt...@wicourts.gov > wrote: > Euler Taveira de Oliveira <eu...@timbira.com> wrote: > > > Talking about your problem, are you sure you're not reaching > > max_connections? > > It also strikes me that from the minimal information given, it might > be possible that pid numbers or port numbers are wrapping around > before the OS is ready to allow re-use. I haven't seen that > behavior except in machines infected with a worm, but this test > might be edging into the same territory if it's using a new > connection for each request. Obviously, nobody who cared about > performance would use that technique in production, but it rather > sounds like this test does. > > -Kevin >