A failure with one of the GroupWise systems (GW1) caused the GroupWise Web & Internet mail delivery to become unavailable around 10:52 PM on Tuesday, June 11. Services were restored at approximately 11:48 PM.
We apologize for the service disruption.
-Computing and Communications Services
At approximately 8:30AM on Monday, June 11, we became aware of an intermittent wireless connectivity problem. Following a preliminary investigation, one of the redundant links connecting to one of the wireless controllers was disabled around 9:00AM to eliminate the intermittent connection problem. Network Services will investigate further to determine the cause of the link failure. The areas affected included the Library, Podium and Jorgenson buildings, as well as 415 Yonge Street.
Please accept our apologies for the disruption in service.
-Computing and Communications Services
On Sunday, June 10, 2012 between 6 am and 7 am, we will apply a software patch that is designed to resolve the Blackboard memory leak issue that has been causing problems since we upgraded to Blackboard 9.1.
Blackboard, RAMSS and SoapBox will not be available during this time frame.
We apologize for any inconvenience this may cause.
-Computing and Communications Services
At approximately 1 pm today, we started experiencing memory resource issues with one of the five Blackboard application servers. The server crashed and was restarted around 1:10 pm. Users who were connected to this particular server may have had their sessions dropped.
CCS is still working with the vendor to get the official patch for this issue.
We apologize for the service interruption.
-Computing and Communications Services
One of the network distribution switches serving the west side of the campus was rebooted at 6:45 AM to clear up a wireless connectivity issue. Traffic was re-routed to another distribution switch during the 3 minutes of reboot. Because 415 Yonge is off-campus and connected only to that switch without a redundant path, there was a network outage in the building during the reboot.
We apologize for the service interruption.
Computing and Communications Services
One of the 5 Blackboard application servers is experiencing some problems, and we will be taking it out of the load balanced pool around 1 PM. Users connected to this application server will not be affected by this action and new connections will be directed to the other application servers. We will leave the application server up until all current connections expire.
The vendor’s support group has already been contacted and we’re working towards resolution of this issue, which does not seem to be related to the cause of the previous problems that we’ve experienced recently.
We apologize for the service interruption.
-Computing and Communications Services
The Ryecast system will be upgraded on Monday, May 28, starting at 8 AM. The upgrade is expected to take less than 24 hours. While the upgrade takes place the system will not be available.
We apologize for any inconvenience this outage may cause.
-Computing and Communications Services
The recent Blackboard 9.1 SP8 upgrade introduced a bug with the authentication code, causing a memory leak, which over time leads to the problems recently experienced with the Blackboard system. To reduce the risk of similar incidents, the Blackboard application servers will be rebooted on a daily basis between 3 AM and 4 AM, until a patch for this issue is fully tested.
The vendor has informed us that another institution running the same version as Ryerson reported the same problem. This other institution has not fully tested the patch provided by Blackboard, and has also implemented a daily reboot of the application servers as a temporary fix to the problem. At this stage, we have deployed the patch in our test environment and so far the sanity testing carried out has showed good results. We are planning to perform additional load testing to ensure that the patch corrects the problem, and we will deploy it to the production system following a positive outcome.
We will provide periodic status updates of our testing.
We apologize for any inconvenience this may cause.
-Computing and Communications Services
This morning around 10 am the Blackboard system was experiencing a memory leak issue, the same issue that was experienced this Wednesday after the Blackboard upgrade. To prevent the problem from getting worse, all five application servers had to be restarted one at the time. During the server restart, the users who were connected to that particular server had their sessions dropped.
CCS is working with the vendor to get the official patch for this issue. To avoid similar issues from happening again and until this patch is released, we are planning to restart Blackboard application servers on daily basis between 3 am and 4 am.
We apologize for any inconvenience this may cause.
-Computing and Communications Services
A failure with one of the GroupWise systems (GW1) caused the GroupWise Web & Internet access to become unavailable around 4 PM, today, Thursday, May 24. Services were restored at approximately 4:18 PM.
We apologize for the service disruption.
-Computing and Communications Services
