Performance with 1000+ User accounts

[tommyd]

Can any one comment on the performance of DirectAdmin on a Server level with 1000+ Accounts, not looking into the perfomance based on site, but more into the stability of config files when adding and deleting accounts, like for example cpanel once it hits 1000+ accounts it gets shackey.... any comments on this?

 

[jmstacey]

DirectAdmin itself will probably be just fine. There have been reports of people hitting an apache configuration limit with a lot of subdomains (apache fails to start until one subdomain is removed etc) because of a limit in the number of log files it can open simultaneously overall.
This problem has been overcome by reducing the ammount of unique log files that each virtualhost uses.

All and all I think that's where your bottleneck will be if you have a powerful server.

 

[jmstacey]

The apache gurus have also suggested other workarounds such as mod_macro and mod_vhost_alias, although I have never had to look into such solutions.

This limitation is really set by your Operating System, in most cases which [umig]ht[/u] be able to be increased to an arbitrary ammount.

All of the above of course ignoring performance of the actual websites.

 

[tommyd]

We could over come this by disabling the virtualhost logs correct?

 

[jmstacey]

Either that or combining them so all have a common log file. However you have to keep inmind that this would effectively disable bandwidth monitoring of the apache service without a custom tally program beyond what DirectAdmin does.

 

[tommyd]

thank you very much for your help and suggestions... I will give it a try and let you know the end results once I get the 1000+ user accounts setup

 

[jmstacey]

Good Luck

 

[Wunk]

http://www.directadmin.com/forum/showthread.php?s=&threadid=10130

Eventually you'll run into a system limit concerning the file descriptors, above thread has the solution for it. It'll allow well over 1000 users if you apply those changes to your OS/Apache