[Portfolio] Question about SAK-15822

janice.smith janice.smith at threecanoes.com
Tue Mar 10 10:53:38 PDT 2009

Hi Chris

I have not followed all the details of this discussion, but I can tell you from experience that performance issues with OSP can literally shut down an instance of Sakai. If we have the choice between creating something that dramatically complicates performance and something that does not, I will choose the less complicated option every time. So far the big performance problems have been with the wizard. If the matrix starts generating performance problems (which it has not to date), there will be serious consequences for portfolio implementations. Also as an FYI, at many institutions, only some of the users in portfolio sites actually use the matrix.


Janice A. Smith, Ph.D.
Three Canoes Consulting
1204 Laurel Avenue
Saint Paul, Minnesota 55104, USA
207-841-6262 (cell)
janice.smith at threecanoes.com
jasmith at mm.com

---- On Tue, 10 Mar 2009 10:38:28 -0700  Christopher Wayne Maurer <chmaurer at iupui.edu> wrote ---- 

 >  http://bugs.sakaiproject.org/jira/browse/SAK-15822
 >  As a brief summary, the “manage status for all users” functionality will only work if the user has visited the matrix in question (and generated the actual data).
 >  What do people think about having this trigger the creation of matrix data first?
 >  My biggest concern is the performance of creating all that data (if it doesn’t exist).  I would expect that the normal use case here is that most users will have interacted with their matrix by this point.
 >  But, in practice this may not be the case.  I can obviously create a site with 1000 users, create a matrix, and immediately change the status for all users (not the same as changing the cell’s initial status).  This action will create all 1000 user matrices (well, 999 since the author just went to the matrix).
 >  The case that isn’t covered (and I think that it’s okay not to worry about it) is when all the statuses have been changed and a user is added to the site.
 >  So, what do people think about this bulk creation?
 >  Chris 
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