[Chtc-users] Reminder: Interruption to HTC and HPC systems, May 7

[chtc-users@xxxxxxxxxxx]

Dear CHTC users,Â

This is a reminder that there is a scheduled downtimeÂaffecting the HPC cluster and HTC submit nodes (submit-3 and submit-5), planned for a week from now,ÂMay 7, from mid-morning until 7 or 8 pm.

Details about affected systems are in our previous email below. Users of the HPC cluster should be advised that jobs that start running after today will be killed on Saturday (May 7) morning if they have not completed by that time (given the 7-day maximum run time per job). Â

Please let us know if you have any questions or concerns. Â

Best,Â

Your CHTC team

On Fri, Apr 15, 2016 at 3:37 PM, <chtc-users@xxxxxxxxxxx> wrote:

Greetings CHTC users,Â

This email serves as advanced notice for a downtime affecting the HPC cluster and HTC submit nodes (submit-3 and submit-5), scheduled forÂMay 7, from mid-morning until 7 or 8 pm. The downtime is taking place in order to upgrade the network in one of our server rooms. Â

What will be affected? Â

• On both systems, users will be unable to log into the HPC head nodes (aci-service-1, aci-service-2) and HTC submit nodes (submit-3, submit-5) during the downtime.Â
  
• Jobs still in the HPC cluster queue will be killed and will need to be re-submitted, after access to the head node is restored. Â
  
• Jobs submitted to the HTC system via submit-3 or submit-5 will remain in the queue, but will not successfully complete until the submit nodes have been turned back on. Any jobs interrupted by the outage will be automatically re-run by HTCondor after submit-3 and submit-5 are rebooted. Â
  

Again, the downtime is planned forÂMay 7. We are providing advanced notice so that users can plan ahead. We will send out another notification a week before the downtime - in the meantime, please contact us if you have any questions or concerns. Â

Best,Â

Your CHTC team

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