Opencast: Migration of streaming database
- Migration from MySQL to PostgresSQL
CLAIX-2018 dialog systems
Due to the high load on the login / dialog nodes affecting their usability, we decided to reduce the maximum usable cores on each login node to four cores for each user. Please note: These login nodes should be used for programming, preparation and minimal post processing of batch jobs. They are not intended for production runs or performance tests. For longer tests (max. 25 minutes), parallel debugging, compiling, etc., you can use our “devel” partition by adding “#SBATCH –partition=devel” to batch jobs or interactively with “salloc -p devel”.
For all productive jobs, please use our batch system **without** “#SBATCH –partition=devel”. If you want to more learn more about the batch system, we invite you to our Slurm introduction.
You can track any disruptions or security advisories that may occur due to the aforementioned change in the RWTH-HPC category on our status reporting portal.
FastX Server Component Upgraded to Version 3.3.39
The FastX server component installed on the HPC frontend nodes was upgraded to version 3.3.39.
The update contains security enhancements and several bugfixes from which all users benefit when using FastX.
Please ensure to use the latest desktop client if you are using FastX when accessing the cluster.
For more information on how to access the RWTH Aachen Compute cluster via FastX, please refer to the ITC Help Page
You can track any disruptions or security advisories that may occur due to the aforementioned change in the Email category on our [status reporting](https://maintenance.rz.rwth-aachen.de/ticket/status/messages/14-rechner-cluster) portal.
UI improvements Person Directory
The UI of the person directory has been improved. Error messages are now more clearly visible and the view of vacant campus assignments has been revised.
Release Notes Version 2.5.0 – New study room traffic light
Features:
- The study room traffic light has been added (this shows the occupancy of study rooms, as was also displayed in the previous RWTHapp)
Improvements and bug fixes:
- The people search function has been improved: we have improved the search algorithm and optimized the results
- Outstanding fees (e.g., university library) are now sorted by date
- Several minor bug fixes
ARMForge becomes LinaroForge
With Linaro’s acquisition of the Forge toolset from ARM, the popular parallel debugger DDT and the performance analysis tool Performance Reports are now available as Linaro Forge.
The newest version of the toolset is available on CLAIX via module load LinaroForge/23.0.2.
You can track any disruptions or security advisories that may occur due to the aforementioned change in the RWTH-HPC category on our status reporting portal.
web phone directory CAS CAMPUS was shut down
On August 31, the RWTH Aachen University web phone directory CAS CAMPUS was shut down. The old CAS CAMPUS directory has now been completely replaced by the new RWTHcontacts directory.
For more information, please see the IT Center Blog and the circular.
HPC Cluster: Linux Kernel Upgrade
The Linux Kernel on the CLAIX18 compute nodes is being upgraded to kernel version 4.18.0-477.21.1. To maximise the availability of the compute cluster, the mandatory reboot of the nodes is scheduled as a reboot job, thus allowing all already submitted and running jobs for completion before the upgrade takes place.
Please note that the reboot is prioritised over other jobs, and some nodes may be temporarily unavailable after the reboot.
Best regards,
Your HPC-Team@RWTH
You can track any disruptions or security advisories that may occur due to the aforementioned change in the Email category on our status reporting portal.
Release Notes Version 2.4.0 – New default theme “System”
Improvements and bug fixes:
- In-app browser is used for links
- New default theme “System” was added
- Redirection when clicking on dashboard widgets is set up: “calendar,” “grades.”
- Some authentication issues were fixed
- Various bug fixes
Change in SSH Configuration: Depreciation of Insecure Methods, Addition of New Methods
As the result of a recent security evaluation, we have decided to disable several methods in key exchange, message authentication codes and encryption ciphers classified insecure/weak which obsoletes the following methods and method groups as listed below. In general, we have disabled SHA-1-based methods since SHA-1 is broken since early 2017 (cf. Stevens et al.: “The first collision for Full SHA-1”).
We kindly ask you to update your client configuration accordingly since these methods cannot be used anymore to access the RWTH Aachen HPC Cluster until further notice: Read the rest of this entry »
