[Using Sakai] file size limits

Wed Mar 3 15:29:35 PST 2010

Hi Linda,

The MySQL configuration only needed if you are storing the binary content of uploaded files in the database itself. If you are storing them on the filesystem, which is configured via these two sakai.properties: 

# the file system root for content hosting's external stored files (default is null, i.e. store them in the db)
# see the readme file (2.2.7 File Based Content Hosting) for more details
#bodyPath at org.sakaiproject.content.api.ContentHostingService = /someplace/

# when storing content hosting's body bits in files, an optional set of folders just within the bodyPath -
# to act as volumes to distribute the files among - a comma separate list of folders.  If left out, no volumes will be used.
# see the readme file (2.2.7 File Based Content Hosting) for more details
#bodyVolumes at org.sakaiproject.content.api.ContentHostingService =vol1,vol2,vol3

then it should be ok without it.

cheers,
Steve

On 04/03/2010, at 10:15 AM, Beith, Linda wrote:

> 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 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>/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>
> To:
> "Qian, Zhen" <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> 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
> 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
>  
> _______________________________________________
> sakai-user mailing list
> sakai-user at collab.sakaiproject.org
> http://collab.sakaiproject.org/mailman/listinfo/sakai-user
> 
> TO UNSUBSCRIBE: send email to sakai-user-unsubscribe at collab.sakaiproject.org with a subject of "unsubscribe"
>  
> 
> SMD.
>  
>  
> ==========================================================
> Sean DeMonner, IT Senior Project Manager, CTools Implementation Group
> Digital Media Commons @ The Duderstadt Center, U-M      (734) 615-9765
>  
> 
> 
> 
> 
>  
>  
>  
>  
> 
> SMD.
>  
>  
> ==========================================================
> Sean DeMonner, IT Senior Project Manager, CTools Implementation Group
> Digital Media Commons @ The Duderstadt Center, U-M      (734) 615-9765
>  
> 
> 
> 
> 
>  
> _______________________________________________
> sakai-user mailing list
> sakai-user at collab.sakaiproject.org
> http://collab.sakaiproject.org/mailman/listinfo/sakai-user
> 
> TO UNSUBSCRIBE: send email to sakai-user-unsubscribe at collab.sakaiproject.org with a subject of "unsubscribe"
>  

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://collab.sakaiproject.org/pipermail/sakai-user/attachments/20100304/00c0d680/attachment-0001.html 