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
Cary
Anderson, Systems Software
Specialist
UNIX/Linux
Services
Information
Technology Services Branch
Technology Services & Support Division / Data
Center Section
System
Software & Storage Infrastructure
fCalPERS