On Wed, 2006-10-04 at 14:25 -0800, Matthew Schumacher wrote: > Any thoughts on this? Anyone else run into this and do some > benchmarking? Perhaps it's a wash, but it's something to think about.
I'm using LDAP as a part of a anti-virus/spam cluster I run for out clients. I'm not doing anything LDAP inside of Mimedefang, but I an using the sendmail LDAP schema for the access_db and mailer_db databases. As you may not know sendmail does an ungodly number of lookup in the access_db for each connection, sender and recipient. And the number of lookups increases as the number of feature that use access_db you use. I've got 2 sendmail front-ends that are both mostly hitting the same LDAP server node. They probably go through 400K-600K total connection per day. Most of which are rejected for one reason or another. Lately both mail front-end have been processing 220K+ e-mail a day though Mimedefang. So far I've not had any issues with LDAP servers being a bottle neck. The important thing is to have a proper set of indexes built for your data schema. Making sure that the ldap server process has sufficient ullimit resources to handle your mail load. And to remember that LDAP is designed to be a read-mostly service. If you are doing lots of writes to the datastore, a RDB might be a better choice. -- Stephen L Johnson [EMAIL PROTECTED] Unix Systems Administrator [EMAIL PROTECTED] Department of Information Systems Phone: 501-682-4339 State of Arkansas _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
