efficiency drops when user exceed 5000+?

[Kevin Baker]

I am a newby to, but learning.

Couple things.

"what partition? file system.." This was likely referring
to user partitioning. As your user base increases an
alternative to beefing up your server, is to add addition
machines to handle the load and partition the users.
Basically setting up maildrops so each mail server handles
a set of users. In your case maybe two machine split the
alphabet in two.


-Kevin

> Zitat von Zhang Weiwu <zhangweiwu at realss.com>:
>
>> 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.
>
> Get real discs. IDE is bad for small random accessed files
> and soft RAID don't
> make them better.
> Be sure to use a filesystem capable of managing a lot of
> files or hash the
> imapspool.
> Have a look at your memory stats. Swapping will kill all
> performance.
>
> This said there is no drop in efficiency but some point at
> which your hardware
> is not able to keep up. But it depends on what your users
> are doing and not
> only on the user-count.
>
> Regards
>
> Andreas
> ---
> 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
>

---
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