Le 18/12/2013 à 16:28:11+0100, Jan-Frode Myklebust a écrit
> On Wed, Dec 18, 2013 at 03:55:22PM +0100, Albert Shih wrote:
> > > 
> > > We at the Universität Konstanz in Germany have more than 16000 users.
> > > 
> > Can you describe your infrastructure ? How many server ? (hardware &
> > Virtual), what size (Ram, CPU) ? 
> 
> We have around 30.000 unique users daily.
> 
> The sogo-servers are 5 virtual machines with 4 cpus and 8 GB
> memory each. Top output from one of these right now:

Ok. 

So that's mean on one machine with same feature 4 CPU and 8 GB I should
easy to accept 500-1000 user pear day.

> 
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND          
>                                                                               
>         
>  6580 root      20   0  273m 115m 3844 S  0.0  1.5  36:49.53 splunkd          
>                                                                               
>         
>  7997 sogo      20   0  381m  62m 8796 S  0.0  0.8   0:44.65 sogod            
>                                                                               
>         
>  6438 sogo      20   0  380m  60m 8108 S  0.0  0.8   0:55.09 sogod            
>                                                                               
>         
>  2730 sogo      20   0  379m  59m 8708 S  0.0  0.8   0:42.99 sogod            
>                                                                               
>         
>  6035 sogo      20   0  378m  59m 8568 S  0.0  0.8   0:44.89 sogod            
>                                                                               
>         
>  6459 sogo      20   0  379m  59m 8164 S  0.0  0.8   0:51.07 sogod            
>                                                                               
>         
> 17130 sogo      20   0  378m  59m 8672 S  0.0  0.8   0:46.98 sogod            
>                                                                               
>         
> 13702 sogo      20   0  379m  58m 8600 S  0.0  0.7   0:43.08 sogod            
>                                                                               
>         
>  6428 sogo      20   0  380m  58m 8356 S  0.0  0.7   0:51.75 sogod            
>                                                                               
>         
> 25734 sogo      20   0  376m  57m 8896 S  0.0  0.7   0:42.47 sogod            
>                                                                               
>         
>  8076 sogo      20   0  375m  56m 8616 S  0.0  0.7   0:38.01 sogod            
>                                                                               
>         
>  2725 sogo      20   0  375m  56m 8336 S  2.7  0.7   0:35.36 sogod            
>                                                                               
>         
>  2690 sogo      20   0  372m  55m 8388 S  0.0  0.7   0:38.71 sogod            
>                                                                               
>         
> 14427 sogo      20   0  374m  55m 8620 S  0.0  0.7   0:36.37 sogod            
>                                                                               
>         
>  8090 sogo      20   0  374m  55m 8552 S  0.0  0.7   0:36.86 sogod            
>                                                                               
>         
> 23322 sogo      20   0  375m  54m 8244 S  0.0  0.7   0:28.58 sogod            
>                                                                               
>         
> 13543 sogo      20   0  373m  54m 8448 S  0.0  0.7   0:25.63 sogod            
>                                                                               
>         
>  9580 sogo      20   0  372m  54m 8584 S  0.0  0.7   0:34.44 sogod            
>                                                                               
>         
> 28024 sogo      20   0  372m  53m 8780 S  0.0  0.7   0:33.48 sogod            
>                                                                               
>         
>  7722 sogo      20   0  374m  53m 8640 S  0.0  0.7   0:35.03 sogod            
>                                                                               
>         
>  8991 sogo      20   0  373m  52m 8272 S  0.0  0.7   0:23.42 sogod            
>                                                                               
>         
>  8411 sogo      20   0  369m  50m 8496 S  0.0  0.6   0:34.35 sogod            
>                                                                               
>         
>  6863 sogo      20   0  369m  50m 8016 S  0.0  0.6   0:32.21 sogod            
>                                                                               
>         
>  5485 sogo      20   0  369m  50m 8668 S  0.0  0.6   0:34.20 sogod            
>                                                                               
>         
> <snip>
> 
> We kill sogod's that has been running for more than 15 cpuminutes, as
> these are normally stuck in something. I believe your sogod's must 
> be stuck..

OK. 

How many sogod you launch ? I put : 

    WOWorkersCount = 6;

and I put : 

 more /etc/sysconfig/memcached 

 PORT="11211"
 USER="nobody"
 MAXCONN="1024"
 CACHESIZE="128"
 OPTIONS=""

do you think this configuration have anything to do with the performance
and decrease the load ? 

> 
> The sogo-servers are dedicated for sogo-webui. In addition we have
> postgres-servers, SMTP-servers, imap-servers and loadbalancers in front
> of everything.

our imap and smtp servers are seperated and not on the sogo-server. Our
sogo server run sogo-webui and postgres-service. Do you think I need to
split that ? 

Anyway thank you very much. 

Regards.

JAS

-- 
Albert SHIH
DIO bâtiment 15
Observatoire de Paris
5 Place Jules Janssen
92195 Meudon Cedex
France
Téléphone : +33 1 45 07 76 26/+33 6 86 69 95 71
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Heure local/Local time:
mer 18 déc 2013 16:45:47 CET
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