[Building Sakai] More on: Performance issue with group member items in gradebook

[David Horwitz]

Hi David,

I have created and umbrella issue for GB related performance issues:

https://jira.sakaiproject.org/browse/SAK-23324

So far I have linked SAK-23221 and SAK-22664 (A scaling related issue
I'm busy working on a patch for)

At the SakaiSA conference earlier this week UNISA reported on GB related
issues at large scale and I hope to get them involved in some baseline
testing.

Regards

David

On Wed, 2013-03-06 at 16:08 -0500, David Haines wrote:
> This is an update on some responses at Michigan to the gradebook
> performance issues noted in SAK-22978.
>
>
> The changes implemented for
> https://jira.sakaiproject.org/browse/SAK-22978 are very good.  That
> said they explicitly do not address the issue of many people
> requesting the same data at once or requesting it multiple times.
>  E.g. an instructor may send an email to 1,300 students letting them
> know that all the grades will be available at 6pm and people may be
> reloading the page until they get the grades (or the system goes
> down).   At Michigan we've run into that problem more than once so we
> created a Jira ( https://jira.sakaiproject.org/browse/SAK-23321 ) to
> add data caching across users. Caching was discussed in but isn't part
> of SAK-22978. Thoughts about this Jira are welcome.
>
>
> Also please note that the SAK-22978 work will not address Mneme where
> we have found similar issues.
>
>
> - Dave
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