I usually start seeing these errors about 5 minutes into the test. I will attempt to increase the max file descriptors to the ulimit of the server, which is 65535 Thanks 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 George Holbert Sent: Wednesday, May 23, 2007 10:49 AM To: General discussion list for the Fedora Directory server project. Subject: Re: looking for some insight into configuring FDS for an enterprise environment of 10k users > Running this script will generate "can't contact the LDAP server" > errors. Does this happen immediately, or does the script run for a while first? When you start seeing this message, what shows up in the server's access and error logs? > Max file descriptors: 4096 If you're running on machines dedicated to the directory service, you can increase this quite a bit... in fact, this is probably the limit you're hitting. Anderson, Cary wrote: > I have been doing some stress tests on the FDS in order to try and > configure the server for an enterprise wide deployment. My goal is to > recommend the number of slave/master servers and the appropriate > configuration for an environment with 10k users. > > Starting with a default FDS installation I have modified the directory > accordingly: > 10k users id's > the max cache size: 63Mb > Lookthrough limit: 15000 > Max file descriptors: 4096 > memory avail. for cache: 100Mb > Created an index for uidnumber > > I have created a php script to stress test the server. > The script has the following parameters: > > processes 500 # number of simultaneous connections > binds 5 #number of times the script will loop > query 50 # number of queries to make > min sleep 1 # min time between queries > max sleep 5 # max time between queries > uid_number 50000 # search for this uidnumber > server 10.27.1.104 #host ldap server > > Running this script will generate "can't contact the LDAP server" > errors. My question is should I be looking at some other parameters > to modify in order to have the server handle more simultaneous > connections. 500 connections doesn't seem like an unreasonable number > of connections for an enterprise directory server, yet the server is > rolling over at what seems to be a pretty light load... > > Any insights on how best to configure the server to handle a larger > number of connections would be greatly appreciated. > > Thanks > -- Fedora-directory-users mailing list Fedora-directory-users at redhat.com https://www.redhat.com/mailman/listinfo/fedora-directory-users
