ITS Service Status Report

Service Degradation

Great Lakes Open OnDemand

Services Affected: Research HPC

Start Time: 11/10/2022 4:00 pm

Anticipated End Time: Unknown

Issue Symptoms: Degradation

Great Lakes Open OnDemand is continuing to experience disconnections to active VNC jobs.  The jobs are NOT being killed ; only the connect to the job is being lost.  Users can reconnect to their jobs by going to the My Interactive Sessions.  We are working to diagnose and remedy the issue.

 

 

Who is Impacted? Great Lakes Open OnDemand Users

Next Update: 2022-11-17

Technical Details

Service Type: Production

Comments:

2022-11-11 00:10 AM: Updates have been made to Open OnDemand web traffic routing with the intent to eliminate the issue observed.

2022-11-11 04:46 PM :  From what we learned from the update, we have found an issue with Apache.  We will be pushing an update to the Great Lakes Apache configuration tonight around midnight.  Users may need to reconnect to their jobs after the restart.

2022-11-12 00:20 AM: Updates to the Apache MPM module configuration applied, active sessions would have experienced a disconnect from the VNC sessions as Apache was restarted.  Sessions can be resumed by re-launching the interactive sessions.

2022-11-16 02:00 AM: The Apache service was restarted to implement further changes. active sessions would have experienced a disconnect from the VNC sessions as Apache was restarted.  Sessions can be resumed by re-launching the interactive sessions.

Groups Notified:

  • arc-unitsupport

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Contact the ITS Service Center for more information or to report additional impacts.