[Using Sakai] file size limits

Wed Mar 3 15:15:12 PST 2010

Ah, thanks Steve. We are indeed using MySQL and although we made the change to the sakai.properties file I'm not sure we changed the setting in MySQL. Thanks so much for this information.
Linda

From: Steve Swinsburg [mailto:steve.swinsburg at gmail.com]
Sent: Wednesday, March 03, 2010 5:47 PM
To: Beith, Linda
Cc: Sean DeMonner; sakai-user at collab.sakaiproject.org User
Subject: Re: [Using Sakai] file size limits

Hi Linda,

Just a heads up that if you are using MySQL and storing content in the database, you also need a setting in the MySQL configuration to allow file uploads greater than 1Mb.
http://steve-on-sakai.blogspot.com/2008/11/sakai-mysql-and-storing-content-in.html

cheers,
Steve

On 04/03/2010, at 3:45 AM, Beith, Linda wrote:

Thanks everyone. A lot for us to look at.
Linda

From: Sean DeMonner [mailto:demonner at umich.edu]
Sent: Wednesday, March 03, 2010 10:54 AM
To: Beith, Linda; sakai-user at collab.sakaiproject.org<mailto:sakai-user at collab.sakaiproject.org> User
Subject: Re: [Using Sakai] file size limits

Yes, DropBox would be a better approach than MWS I think.

I believe the URL structure for accessing a DropBox via WebDAV is:

            https://<yourdomain.edu<http://yourdomain.edu>>/dav/group-user/<siteID>/<username>

So, for example, I can log in to a DropBox on a course site in the U-M Sakai instance with:

            https://ctools.umich.edu/dav/group-user/890adb0e-6f72-479c-8967-66b0784094bd/demonner

One caveat with this approach -- a while ago there was a bug with WebDAV where an item had to exist in a given DropBox before you could log in to it. If that is still true, then the students (or instructor) might need to create some content in their DropBox via the web interface before upload a large project file.

SMD.

On Mar 3, 2010, at 10:24 AM, Zhen Qian wrote:

Diana is right. The better choice would be using the in-site Dropbox tool.

Thanks,

- Zhen

-------- Original Message --------
Subject:

Re: [Using Sakai] file size limits

Date:

Wed, 3 Mar 2010 10:18:39 -0500

From:

"Perpich, Diana" <dperpich at umich.edu<mailto:dperpich at umich.edu>>

To:

"Qian, Zhen" <zqian at umich.edu<mailto:zqian at umich.edu>>

Can't they also webdav into their Dropboxes?  If you set the privileges correctly (add only, not delete or edit) in the dropbox tool, then students couldn't cheat by uploading one file and later swapping it out after the deadline like they can in their own My Workspace Resources.

diana perpich | digital media commons | university of michigan

On Mar 3, 2010, at 10:16 AM, Zhen Qian wrote:

Linda:

Assignment tool is using the Attachment helper tool for uploading files. So if "content.upload.max" property is not set in configuration file, the default max upload file size would be 1MB.

I don't think students can WebDAV directly into Assignment tool. But they can first WebDAV files into their MyWorkspace Resources tool, and then pick the files in Attachment helper for Assignment.

Thanks,

- Zhen

On Wed, 3 Mar 2010 09:58:35 -0500, "Beith, Linda" <lbeith at rwu.edu<mailto:lbeith at rwu.edu>> wrote:
Sean,
Evidently students are uploading into the Assignment tool. Can your students use Anyclient to upload into the Assignment tool and sidestep the built-in upload protocol?
Linda

From: Sean DeMonner [mailto:demonner at umich.edu]
Sent: Wednesday, March 03, 2010 9:18 AM
To: Beith, Linda
Cc: sakai-user at collab.sakaiproject.org<mailto:sakai-user at collab.sakaiproject.org>
Subject: Re: [Using Sakai] file size limits

WebDAV doesn't honor the upload limit, so we usually direct users with large files (>50 mB) to use that interface instead. There are other issues with WebDAV unfortunately...typically we suggest using third party software like Anyclient vs. the built-in Win or Mac OS services.

We use a 50 MB upload limit through the browser and a 1 GB quota per site at U-M.

SMD.

On Mar 3, 2010, at 9:10 AM, Beith, Linda wrote:

Hi everyone,
We are piloting Sakai this semester with some of our Architecture faculty and students. They are all uploading files for their portfolios and are complaining about difficulty with the upload process. We have our file upload size limit set to 50 mg.  right now. I'm also wondering if the students are handling the uploads on wireless connections from their dorm rooms. Have any of you run into any difficulties with either uploads or quotas on Sakai? Can you share the limits you've established or best practices that seem to work with students in disciplines who typically create large files - for example graphic design, art, architecture, digital video etc? Any suggestions would be most welcome.
Thanks.
Linda

Linda L. Beith, Ph.D.
Director, Instructional Design
Roger Williams University
One Old Ferry Road
Bristol, RI 02809
401-254-3134

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SMD.

==========================================================
Sean DeMonner, IT Senior Project Manager, CTools Implementation Group
Digital Media Commons @ The Duderstadt Center, U-M      (734) 615-9765

SMD.

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Sean DeMonner, IT Senior Project Manager, CTools Implementation Group
Digital Media Commons @ The Duderstadt Center, U-M      (734) 615-9765

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