Snyder Cluster Maintenance Upgrade

May 21, 2018  8:00am – May 22, 2018  12:30pm

UPDATE: May 22, 2018  12:33pm

As of 12:33pm, engineers have completed the CentOS7 upgrade and maintenance and have returned the Snyder cluster back to normal service. All queues have been enabled and jobs have resumed scheduling. Please report any issues to

ORIGINAL: April 10, 2018  2:46pm

The Snyder cluster will be taken down on Monday, May 21st, 2018 at 8:00am for a planned upgrade to CentOS7. This process is expected to take two days, and Snyder will not return to service until 5:00pm on Tuesday, May 22nd, 2018.

This upgrade may affect applications you have built yourself and will also include changes to existing applications. More information about this upgrade, including how to test your work in advance through a testing queue, is available in the announcement article "Snyder Upgrade to CentOS7".

Any jobs which would not complete before Monday, May 21st, 2018 at 8:00am will be held in the queue until after the maintenance.

Originally posted: April 10, 2018  2:46pm