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Rechner-Cluster - Upgrade of Login Nodes

Montag 23.06.2025 06:00 - unbekannt

On Monday, June 23rd, the CLAIX-2023 Rocky 9 frontend nodes login23-1, login23-2 and login23-4 will be upgraded to Rocky Linux 9.6. During the upgrade, these nodes will temporarily not be available. Please use the Rocky 8 frontend nodes in the meantime.

Fr 20.06.2025 13:44

Updates

login23-g-1 and login23-x-2 will be reinstalled with Rocky Linux 9.6. Until the reinstallation is finished, these nodes are temporarily unavailable.

Mo 23.06.2025 05:50

The GPU login node login23-g-1 is reinstalled and available with Rocky 9.6. The other nodes require further work.

Mo 23.06.2025 08:56

The login nodes login23-1, login23-2, login23-4 are updated and available again. login23-x-2 requires some further work.

Mo 23.06.2025 10:33

Rechner-Cluster - User namespaces on all Rocky 9 systems deactivated

Montag 16.06.2025 14:15 - unbekannt

Due to an open security issue we have deactivated user namespaces on all Rocky 9 systems. This feature is mainly used by containerization software and affects the way apptainer containers will behave. Most users should not experience any interruptions. If you experience any problems, please contact us as usual via servicedesk@itc.rwth-aachen.de with a precise description of the features you are using.

Mo 16.06.2025 14:26

Rechner-Cluster - Usability of Desktop Environments on CLAIX-2023 Frontend Nodes Restricted due to Security Issues

Freitag 20.06.2025 09:15 - unbekannt

Due to high-risk security issues within some components, the affected packages had to be removed from the cluster to enable operation until the security issues can be fixed. Unfortunately, the removal breaks the desktop environments XFCE and Mate due to tight dependencies to the respective removed packages. Consequently, the file managers "Thunar" and "Caja" as well as some other utilities cannot be used at the moment when using a GUI login. If a GUI login is mandatory, please use the IceWM environment instead. However, some of the GUI applications might not work as expected (see above). The text-based/terminal usage of the frontend nodes is not affected by the temporal change.

Fr 20.06.2025 09:26

Rechner-Cluster - Job submission to some new Slurm projects --accounts fails

Samstag 07.06.2025 10:00 - Montag 16.06.2025 14:16

Our second Slurm controller machine has lost memory modules and is currently pending maintenance. This machine is responsible for keeping our Slurm DB in a current state. Without it the submission to some new Slurm projects/ accounts will fail. Please write a ticket if the problem persists.

Di 10.06.2025 14:04

Rechner-Cluster - login23-2 currently not available

Donnerstag 12.06.2025 17:30 - Montag 16.06.2025 10:20

login23-2 is currently not available. Please use one of the other dialog systems.

Do 12.06.2025 17:39

Updates

login23-2 is available again.

Mo 16.06.2025 10:22

Rechner-Cluster - System maintenance for the hpcwork filesystem

Mittwoch 11.06.2025 07:00 - Donnerstag 12.06.2025 17:40

During the maintenance, the dialog systems will continue to be available most of the time but *without access to the hpcwork directories*. Batch jobs will not be running.

Mo 02.06.2025 14:59

Updates

Due to unexpected problems with the filesystem update, we will have to prolong the maintenance until tomorrow. As of now, we presume that the problem will be solved until noon and will release the batch queues as soon as possible. We apologize for the inconvenience.

Mi 11.06.2025 16:42

All maintenance tasks have been completed and both HPCWORK and the batch queues are operational again.

Do 12.06.2025 17:57