[Building Sakai] Slow forum on sites with large participant list - Sakai CLE 2.8

[Curtis Van-Osch]

Hello,

As some of you may know, we launched a MOOC course here at HEC Montréal 
using Sakai CLE 2.8 (see www.EDUlib.hec.ca ) 
<https://edulib.hec.ca/portal>. Our course sites have around 3000 
participants, and this appears to be causing performance issues with the 
forum. Posting a new message takes somewhere between 45 and 60 seconds.

It appears that the problem is that the system loops through all users 
of a site when updating the Synoptic tool information. We don't use the 
Synoptic tool within our course and we found that the following code 
changes in /*org.sakaiproject.tool.messageforums.DiscussionForumTool*/ 
resolves our problem:

    * /*incrementSynopticToolInfo()*/ body is commented so that the
      function doesn't do any processing.
    * /*needToUpdateSynopticOnForumSave()*/ always  return false;

Do you see any risks if we implement theses changes to our production 
environnement?

Thanks in advance for any information you can provide us.
-- 
<http://www.hec.ca>
	
Curtis Van Osch
Analyste-Programmeur
Direction des technologies de l'information
hec.ca <http://www.hec.ca>
Agréments 	
3000, chemin de la Côte-Sainte-Catherine, Montréal (Québec) H3T 2A7
Téléphone : 514 340-6000, poste 2029

	
recyclez 		
Pensons à l'environnement
avant d'imprimer

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