Thanks for the feedback, I have turned on more extensive logging on the FDS server, Hopefully that will turn something up, but based on the settings in my sysctl.conf, limits.conf, and ulimit, I should be able to handle more than 2500 connections, unless I am missing a configuration parameter. Ulimit 805696 Sysctl.conf ############################## # Set Kernel Parameters # semaphores, SEMMSL, SEMMNS, SEMOPM, SEMMNI: kernel.sem = 256 32000 100 142 kernel.shmall = 2097152 kernel.shmmax = 2147483648 kernel.shmmni = 4096 kernel.msgmax = 8192 kernel.msgmnb = 65535 kernel.msgmni = 2878 fs.file-max = 131072 net.ipv4.ip_local_port_range = 32000 65000 Limits.conf # Custom setup for Global System Limits: * hard nproc 32767 * soft nproc 32767 * hard nofile 65536 * soft nofile 65536 * hard fsize 5000000 * soft fsize 1000000 Cary Anderson, Systems Software Specialist UNIX/Linux Services Information Technology Services Branch Technology Services & Support Division / Data Center Section System Software & Storage Infrastructure fCalPERS Phone: (916) 795-2588 Fax: (916) 795-2424 -----Original Message----- From: fedora-directory-users-bounces at redhat.com [mailto:fedora-directory-users-bounces at redhat.com] On Behalf Of Patrick Morris Sent: Wednesday, June 06, 2007 12:33 PM To: General discussion list for the Fedora Directory server project. Subject: Re: Load Testing question On Wed, 06 Jun 2007, Anderson, Cary wrote: > I am still playing around with load/stress testing my FDS install. I > am using slamd to run the tests, and I am running the basic load, and > the basic search tests against my test boxes, The slamd client and > the FDS server are on identical hardware running RHEL4 with 2G memory, > and 2 Intel Xeon 3.6GHz processors. The issue I am seeing is that I > am getting "cannot connect to the ldap server" errors once I push the > "threads per client" past 2400. My question is am I hitting a limit > on the OS (max tcp connections)? Or a FDS limit? My assumption was > that given appropriate hardware, and proper configuration, I could > expect FDS to handle more than 2400 concurrent connections. Any > insights as to what I might be missing would be greatly appreciated. Log entries from your server should give you some insight into why connections are being refused. There's a good chance you haven't allocated enough file handles, but that's a guess. -- Fedora-directory-users mailing list Fedora-directory-users at redhat.com https://www.redhat.com/mailman/listinfo/fedora-directory-users
