Re: A Large LDAP Server

["Mark Wilcox" <mark@mjwilcox.com>]

Hi,

You need to define what you mean by access? Any LDAP server is going to
handle at least several hundred (if not thousands) of read access per
second. Write accesses are a bit harder to figure, but writes are much more
infrequent (if they are not, you need to rethink your LDAP applications).

For starters you don't have enough RAM, you should really beef that up to 1
GB. More RAM, the better. Also get the fastest disks you can afford since
RAM and Disk IO are where you'll see most of your accesses.

After you do that then you can look at replication. And that will depend how
you use your LDAP servers. For example in places where you're a very
distributed organization, then it makes sense to have replicas at the
various offices just to save on network traffic. In probably my favorite use
of replication, I know of a group who uses LDAP replication for providing
network services to ships at sea (each ship has LDAP server, then resynches
when it comes back into contact with the 'net).

Mark

-----Original Message-----
From: Jeremy Jin <jxl@guomai.sh.cn>
To: openldap-general@OpenLDAP.org <openldap-general@OpenLDAP.org>
Date: Tuesday, October 26, 1999 6:21 AM
Subject: A Large LDAP Server


>Hi,
>
>I want to create a large LDAP server who can support 10 times/second
>access
>to it. I think a PC (P400 with 256M memory) can not do it. Anyone can
>give me
>some advices that how many replica servers I need ? Or is there any good
>cache
>software to accelerate it?  How many access in one second does one PC an
>support?
>
>Thanks in advance.
>
>Jin
>
>
>