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

Tue Jan 22 14:09:37 CST 2013

In light of the expectation that this will not require downtime, may I
have your approval to have this deployed as soon as possible? A couple
of the bug fixes in SP6 and SP7, may hopefully, address our Turnitin
woes. Thanks.

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: Tuesday, January 22, 2013 1:45 PM
To: Meyer, Chris J.
Subject: RE: [Critical] - Performance fixes for versions 9.4.1 and 10.x 

Hi Chris, sorry I thought I had replied. There is not any downtime
expected for Service pack or hotfix deployments.

Christine

From: Meyer, Chris J. [mailto:cmeyer at rose.edu] 
Sent: Tuesday, January 22, 2013 2:31 PM
To: d2l-alert
Cc: D2L Customer Service
Subject: RE: [Critical] - Performance fixes for versions 9.4.1 and 10.x 

I would like to schedule this service pack installation to fix another
incident and to prepare to fix this security hole when possible. The
other incident isn't critical, but it is very frustrating and will lead
to trouble calls. It is incident #00216286 and fixes bug #97705 which
prevents users from using the Messaging Alerts and the Update Alerts in
the mini-bar even when a quiz has expired. Do you have any suggestions
or comments?

I still haven't heard back from D2L about how much downtime we should
expect to upgrade from SP5 to SP7 and then apply this database fix (or
upgrade to SP8 when it comes out).

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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