- Qlustar General - Qlustar Mailing Lists

Security/Bug fix releases 14.1.16, 13.4.15
by no-reply-list＠qlustar.org 22 Oct '26

22 Oct '26

The Qlustar releases 14.1.16 and 13.4.15 are ready including a number of security/bug fixes. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2026/1022261 https://qlustar.com/qsa/2026/1022262 This update includes fixes for the critical PHP bugs CVE-2026-109618 and CVE-2026-109619. Note that Qlustar 14 does not use or install PHP per default. Qlustar 13 installations however do, so you should upgrade such installations as soon as possible or shut down the apache web server on the head-node as a temporary measure (this will disable the ganglia and Nagios web pages). No non-security related updates/enhancements/bug fixes are included.

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Qlustar 14 on NVIDIA DGX-1, nvidia-580
by Rolandas Naujikas 19 Oct '26

19 Oct '26

Hi, On our NVIDIA DGX-1 Tesla V100 servers we are running Qlustar 14 (latest 14.1.14 update) with Qlustar image with configured nvidia module. I tried to upgrade to nvidia-580, but kernel module doesn't load. From one side it says it is not compatible with V100, but it is compatible. Our Nvidia-noble qlustar image have core,lustre-client,ofed,slurm,nvidia modules. I tried in place of nvidia module to use nvidia-580. The same with nvidia-570 and nvidia-595 (not supported on Tesla V100). Regards Rolandas

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Security/Bug fix releases 14.1.15, 13.4.14
by no-reply-list＠qlustar.org 16 Oct '26

16 Oct '26

The Qlustar releases 14.1.15 and 13.4.14 are ready including a number of security/bug fixes. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2026/1016261 https://qlustar.com/qsa/2026/1016262 The following non-security related updates/enhancements/bug fixes are included: For Qlustar 14 only: - New feature + Add k3s 1.37.1 including new image module kubernetes-1.37

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Security/Bug fix releases 14.1.14, 13.4.13
by no-reply-list＠qlustar.org 03 Oct '26

03 Oct '26

The Qlustar releases 14.1.14 and 13.4.13 are ready including a number of security/bug fixes. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2026/1003261 https://qlustar.com/qsa/2026/1003262 The following non-security related updates/enhancements/bug fixes are included: For Qlustar 14 only: - Minor changes + Re-enabled sssd socket activation and re-added sssd providers that were removed in 14.1.13. + Update spack to work with slurm 25.05.9

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Security/Bug fix releases 14.1.13, 13.4.12
by no-reply-list＠qlustar.org 29 Sep '26

29 Sep '26

The Qlustar releases 14.1.13 and 13.4.12 are ready including a number of security/bug fixes. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2026/0925261 https://qlustar.com/qsa/2026/0925262 https://qlustar.com/qsa/2026/0925263 The following non-security related updates/enhancements/bug fixes are included: For Qlustar 14 only: - Update to QluMan 14.2.0 * Major QluMan GUI overhaul - Add theming support with new modern QluMan themes. Default is a dark theme. - Easily select the theme and font settings via an improved Preferences dialog. - Completely reimplement saving/restoring GUI settings + All settings are now saved in a user-specific sqlite database. This prevents occasional GUI crashes caused by the previous native Qt save/restore method. + The complete state of subwindows is restored when reopening them or when the GUI is restarted. + Saves/restores - Main window size and position - Subwindow sizes and positions - Subwindow's position of sliders - Subwindow's tree state (collapsed/uncollapsed) - Add subwindow snapping support: Subwindow borders snap to the main window borders or to the borders of other subwindows. Allows a nice and clean arrangement of subwindows. - Add resize column to contents for tables by mouse double-click. - New SVG LED icons * QluMan GUI network proxy/web browser support - Highly improve the reliablity and speed of the internal qluman-qt network proxy when the embedded firefox connects to cluster-internal Web interfaces like the node's BMC web frontends, Grafana or the prometheus pages. - Add a Browser Statistics subwindow, showing details about all browser connections. - Allow to switch on network proxy debugging on-the-fly. * QluMan GUI Slurm support - Job managment dialog + Fix the job filter mechanism + Fix search not working correctly for some columns + Fix problem when commiting columns to layout settings + Fix int sorting - Prevent slurm fairshare dialog to be stuck in an infinite loop * Misc QluMan GUI fixes - Don't remove image modules that depend on core - Prevent EnclosureView from throwing an execption when the GPU type is None - Misc fixes for switch data fetching. * Slurm - Add SLURM_ADD_USER_RETRIES = 4 to limit the number of retries when adding slurm users in the background. - Catch exception fetching slurm data from pyslurm so qluman-slurmd doesn't go into a respawn loop. - Use hostname override for gres.conf entries too. * Alerts - Output progress opening the expression editor on the console - Added nvidia-580 and nvidia-595 driver packages and Qlustar image modules They each contain the complete corresponding driver-dependent Enterprise Nvidia GPU stack. - Minor changes + Disable undesired sssd socket activation and remove unneeded sssd providers.

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Security/Bug fix releases 14.1.12, 13.4.11
by no-reply-list＠qlustar.org 15 Sep '26

15 Sep '26

The Qlustar releases 14.1.12 and 13.4.11 are ready including a number of security/bug fixes. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2026/0915261 https://qlustar.com/qsa/2026/0915262 https://qlustar.com/qsa/2026/0915263 The following non-security related updates/enhancements/bug fixes are included: - Update to Slurm 25.05.9 For Qlustar 14 only: - Update to Ubuntu 24.04.5 LTS

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Spack DB visibility delay on compute nodes — NFSv3 mount session never refreshes (mount -o remount is a no-op)
by garroyo＠ifimar-conicet.gob.ar 31 Aug '26

31 Aug '26

Hi all, We run Qlustar 14 with the standard Spack "HPC Core Stack" setup (softadm group, /srv/apps NFSv3 export, diskless netboot compute nodes). We ran into a reproducible issue that we tracked down fully and wanted to share, since it doesn't seem to be documented anywhere and may affect other sites with the same standard layout. ## Symptom After `spack install <pkg>` completes on the head node, the new package is correctly visible via `spack find` on the head node immediately, but stays INVISIBLE from `spack find` on compute nodes for an unpredictable amount of time — anywhere from hours to several days. Raw reads of `.spack-db/index.json` on the affected compute node (via `grep`/`cat`) show the file IS up to date at the filesystem level (correct mtime/size/content), but `spack find` on that same node, at that same moment, still returns the stale package list. So it isn't a filesystem staleness problem in the usual sense — the data is there and correct, but the client's NFS session serving it isn't being refreshed. ## Root cause found The compute nodes mount `/srv/apps` (NFSv3, hard, tcp) at boot. This mount is NOT in `/etc/fstab` in our default netboot image — it's set up directly during boot by the image/initramfs, outside of fstab. We confirmed via `/proc/self/mountstats` that the mount's `age` field stays constant (multiple days) even immediately after running `mount -o remount /apps/local` as root. In other words, **`-o remount` does not reset the underlying NFS session at all** — it's a superficial VFS-level operation. We initially believed a remount was fixing the visibility issue (it appeared to work in a few manual tests), but a follow-up sweep showed previously "fixed" nodes degraded again within hours — which matches: the apparent fix was never a real session refresh, just coincidental timing. The actual fix is a genuine `umount` + `mount` cycle (not `-o remount`). After that, `age` in mountstats correctly resets to 0, and `spack find` immediately reflects the current DB. ## Fix validated in production (18 compute nodes) Interesting operational detail: since we deliberately avoid `-f`/`-l` on the `umount`, this is safe to run even on nodes with active jobs. On nodes where a job had open file handles under the mount, `umount` simply fails cleanly ("device is busy") without touching anything — but the subsequent `mount` still succeeds, stacking a fresh NFS session on top of the busy one underneath. Processes with the old mount already open keep working unaffected; new path lookups get the fresh session. We validated this across all 18 compute nodes in one pass, without filtering for idle state: 18/18 converged to the correct package count, zero jobs affected. ## Questions for the list - Has anyone else hit this specific NFSv3-session-staleness-vs-remount behavior with Spack on Qlustar's standard /srv/apps layout? - Is there a recommended/supported way to trigger a real per-node NFS session refresh after Spack installs (e.g. a hook in the install workflow, or a documented cron pattern), rather than each site reinventing this? - Is NFSv4 (with its integrated locking/session model) considered a supported alternative for /srv/apps in a future Qlustar release, given /srv was reportedly chosen specifically to keep that door open? Happy to share our diagnostic scripts / the umount+mount wrapper we use if useful to anyone else. Thanks, Gonzalo Arroyo IFIMAR-UNMDP / CONICET HPC cluster

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Security/Bug fix releases 14.1.11, 13.4.10
by no-reply-list＠qlustar.org 29 Aug '26

29 Aug '26

The Qlustar releases 14.1.11 and 13.4.10 are ready including a number of security/bug fixes. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2026/0829261 https://qlustar.com/qsa/2026/0829262 No non-security related updates/enhancements/bug fixes are included.

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Security/Bug fix releases 14.1.10, 13.4.9
by no-reply-list＠qlustar.org 22 Aug '26

22 Aug '26

The Qlustar releases 14.1.10 and 13.4.9 are ready including a number of security/bug fixes. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2026/0822261 https://qlustar.com/qsa/2026/0822262 No non-security related updates/enhancements/bug fixes are included.

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Qlustar 14, cannot use lustre-2.15 module
by Rolandas Naujikas 12 Aug '26

12 Aug '26

Hi, The following packages have unmet dependencies: qlustar-module-lustre-2.15-noble-amd64-14 : Depends: qlustar-module-core-noble-amd64-14 (= 14.0.5-b589f1605) but 14.1.9-b589f1641 is to be installed So I forced to use lustre-2.17, but I would like to update first from Qlustar 13 with lustre-2.15 to the same version of Lustre, so I could go back in case of problems. Regards Rolandas

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