[Building Sakai] [Using Sakai] Sakai Slow Down

[Nate Angell]

Barb: Copying to the Sakai Developers list as per everyone's suggestion.

With the servers rSmart hosts for institutions with a similar profile  
to Bradley, we usually deploy an app server for each 500 simultaneous  
users (2 quad-core CPUs with 16GB RAM), so you may benefit from  
another app server to improve response time and to handle peak loads  
above your current sustained usage level.

Not sure what you mean by "stopped twice": very slow response times,  
database pool ran out, permgen space error, java heap memory error? We  
would analyze logs & any other information in order to try to find  
hints to the root cause, which would suggest solutions. Perhaps tweak  
the java garbage collection settings, things like that.

--
Nate Angell
Client Evangelist
@xolotl = twitter
602.714.9677 work
http://www.rsmart.com

On Sep 10, 2009, at 10:35 AM, Barb Kerns wrote:

> We are in the midst of moving from Blackboard to Sakai and have had  
> high adoption this Fall by faculty.  However, this week Sakai web  
> services stopped twice and at other times is slow to load pages.  We  
> are self hosted Sakai 2.5.0 on two Sun servers and have about 650  
> course sites, 1000 simultaneous sessions through most of the day/ 
> evening and about 1 million hits per day.  Where should we start in  
> improving speed/performance?
> We would appreciate any guidance.
>
> Barb Kerns
> Bradley University
> Peoria, IL USA
> (309) 677-2332
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