efficiency drops when user exceed 5000+?
rjs3 at andrew.cmu.edu
Wed Jun 9 13:46:56 EDT 2004
On Wed, 9 Jun 2004, Zhang Weiwu wrote:
> Hello. I have cyrus imapd runing now on my server. Today I heard people say
> when the user number exceed 5000+ the cyrus proformance drops in the way that
> unless many partitions ware made (what partition? file system partition?) to
> share the load. I'm pretty newbie on mail server administration, should I
> start to do something in case my user number grow over 5000+? I'm running a
> dual-processor Xeon server with IDE soft RAID10 discs.
By number of users, do you mean concurrent sessions or number of inboxes?
I don't know of anything that will cause cyrus performance to suddenly
bottom out after 5000 inboxes -- especially if you are using fulldirhash.
The number of users you can support on an individual machine is mostly
related to its memory and (especially) I/O capacity, and the number of
*concurrent* users, not the number of inboxes.
Rob Siemborski * Andrew Systems Group * Cyert Hall 207 * 412-268-7456
Research Systems Programmer * /usr/contributed Gatekeeper
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
More information about the Info-cyrus