[LON-CAPA-users] limited number of concurrent users during midterm
korte at lite.msu.edu
Tue Mar 4 09:29:28 EST 2014
The maximum CPU and user load is defined in /etc/httpd/conf/loncapa.conf , somewhere close to the top.
Your redirection looks like an error in the host table - the machine tries to offload. Your server is not connected to the cluster, so you cannot load-balance against other machines, and likely those tables only have one entry.
Can you send me what’s in
to see what’s going on there?
On Mar 3, 2014, at 10:40 PM, Joseph Mingrone <jrm at mathstat.dal.ca> wrote:
> Our first CAPA-based midterm went well, but there was one hiccup.
> After all but one student in the class logged in to take the test, no
> one else could log in. (Quite a lucky coincidence only one of just
> under 200 students was left out.) When anyone tried, including course
> administrators, they were redirected to the dead URL http://capa/. The
> load on the server seemed OK, but perhaps some configurable limit was
> hit? We believe they saw this dead URL because of a small bug in our
> version of CAPA, 2.10.1-2011113023. When a user logs out, then clicks
> the "Log in again" link, instead of being taken to the correct URL he is
> taken to http://capa. The server administrator has set the correct
> portal url, but after some cron jobs run it's set back. Maybe it's this
> bug we're seeing:
> The pressing question: Is there a way to prevent the concurrent login
> limitation for our next midterm?
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