[D2l-alert] [Critical] - Performance fixes for versions 9.4.1 and 10.x

[Meyer, Chris J.]

Should we decide that we need this patch, how much downtime would its
application require? Our PROD environment is on 10.0 SP5. According to
the information you provided below, we would need to apply through SP7
before the patch is applied. Thank you.

 

Chris

 

Chris Meyer | Dean, Learning Resources Center | Rose State College | 
www.rose.edu <http://www.rose.edu>  
6420 S.E. 15th St. | Midwest City, OK 73110-2799 | v: 405.733.7913 | f:
405.733.7567 | e: cmeyer at rose.edu <mailto:cmeyer at rose.edu>  

 

From: D2L Customer Service [mailto:customerservice at Desire2Learn.com] 
Sent: Monday, January 21, 2013 10:09 AM
Subject: [Critical] - Performance fixes for versions 9.4.1 and 10.x 

 

To Desire2Learn Self-hosted clients

 

We would like to inform you of a recent issue we have discovered,
covering the 9.4.1, 10.X series of Desire2Learn, which may result in
diminished performance for your students, faculty and users.  The
symptoms are as follows:

*         A gradual building of slowness in the application

*         Timeout errors when accessing database items like quizzes,
grades etc...

*         The system will eventually become unusable.

The issue is due to contention on internal component of SQL server
(tempdb), and all indication is that the cause of delays in the database
are related to the execution of too many queries running. This will
cause the database to become unable to process transactions, making the
application perform poorly.

 

Desire2Learn recommends these updates, they have been tested and applied
to a large percentage of clients in our datacentres with positive
results. Please note the version compatibility below if you are not a
compatible version it will require deployment of the necessary Service
Packs. For additional details please refer to the Database Performance
Monitoring guide on how to monitor and determine if you your environment
is experiencing this issue.

 

Version Compatibility

 

*         9.4.1 SP12

*         10.0 SP 7

*         10.1 SP2

Please note, an incident will be created in the support portal on your
behalf to manage the deployment of theses fixes. We will require your
approval and scheduling details via the incident provided. Please also
note these fixes will also be included in the January Service Pack
Collection but are being made available early to assist environments
encountering slowness.

 

If you have questions please reply to this message.

 

Desire2Learn Customer Service & Support

 

 

 

 

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