4:56PM 3/28/2017 Update: The rolling reboots of all systems are completed.
All compute nodes and login nodes of Owens, Oakley, and Ruby clusters will need to be rebooted for kernel upgrades because of security vulnerabilities. The rolling reboot is scheduled starting from Wednesday morning, March 22, 2017. This won't affect any running jobs, but users may experience longer queue wait time than usual on all systems. Users might also experience difficulties with access to our systems or automatic termination of the sessions on the login nodes when login nodes are rebooted.
We really apologize for any inconvenience this may cause you. Please contact email@example.com if you have any questions