[LON-CAPA-admin] Database Schema

Gerd Kortemeyer korte at lite.msu.edu
Tue May 8 17:04:20 EDT 2007


The message to which you responded refers to the caching of document  
names, parameters, etc, which is done using memcached and is not a  

LON-CAPA maintains a number of databases and data structures. There  
is a somewhat outdated document on the "Guts of LON-CAPA" available at


Could you elaborate which one of the structures you are interested in?

- Gerd.

On May 8, 2007, at 4:44 PM, Dale, Tanieth wrote:

> Hi
> I'm wandering how I might easily be able to view that Database  
> Schema of
> On 5/2/07 4:12 PM, "Guy Albertelli II" <guy at albertelli.com> wrote:
>> Hi All,
>>> One of my high school teachers just created a sequence that, when  
>>> plugged
>>> into his course, brought everything to a crawl in the course.
>>> I'm playing the substitute game to try and sort out the issue,  
>>> but so far
>>> all I've found is really long resource URLs.
>>> For example: /res/pickerington/phscphysics/Honors Physics/Chapter 18
>>> Electrical Energy and Capacitance/Chapter 18 Electrical Energy and
>>> Capacitance Study Sheet 1.problem
>>> Was there a bug related to this recently?
>> Following up for posterity.
>> lonnet.pm 1.824.2.5  fixes
>> (the fix in 2.3.3 was working for things really long and really  
>> short,
>> but things 'just right' would trigger the same bug Hon-Kie was seeing
>> http://mail.lon-capa.org/pipermail/lon-capa-users/2007-March/ 
>> 002557.html)
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