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Re: Password sync for ldap users.
by Beethoven Santos 03 Apr '23

03 Apr '23

This is also happening to me from time to time. But in my case, I added users through Qluman, as described in the docs. These are the last lines of the /var/log/auth.log file on the FE node, right after the login attempt. ... > sshd[9118]: pam_unix(sshd:auth): authentication failure; logname= uid=0 > euid=0 tty=ssh ruser= rhost=10.0.2.159 user=********* > sshd[9118]: pam_sss(sshd:auth): authentication failure; logname= uid=0 > euid=0 tty=ssh ruser= rhost=10.0.2.159 user=********* > sshd[9118]: pam_sss(sshd:auth): received for user *********: 7 > (Authentication failure) > sshd[9118]: Failed password for ********* from 10.0.2.159 port 40398 ssh2 I've omitted the username and the timestamps and hostname columns from the lines above. Does anyone have any clue what might be going on? Do I need to show anything else? --- Qlustar Version: *12* Head-Node Kernel Version: *5.13.19-051319-generic* QluMan Server Version: *12.0.7.5* Image (FE) Kernel Version: *5.4.209-ql-generic-12.0-19* Image (FE) Version: *Qlustar 12.0.1.0-b548f1441*

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Qlustar Feature Update 03/23
by Qlustar List 29 Mar '23

29 Mar '23

A number of new Qlustar features were completed recently and published together with the latest security updates. QluMan 13.1.0 highly improves on its Host Filter capabilities: - NEW FILTERS [1] for Property/Config sets, Property/Config types and Property/Config values have been added. These filters make it much easier to select correct groups of hosts for re-configurations or command execution especially on large in-homogeneous clusters. - COMMAND EXECUTION OR HOST SELECTION [2] using filters temporarily defined on-the-fly is now possible directly from the Host Filter dialog. This helps a lot in quickly checking on a group of nodes based on any configuration criteria. The Qlustar documentation has been expanded: - An HPC ADMIN MANUAL [3] has been added. It explains the recently introduced Qlustar HPC Core Stack and gives a detailed introduction to package management using SPACK [4]. - A section about WORKING WITH SPACK [5] has been added to the HPC USER MANUAL [6]. [1] https://docs.qlustar.com/Qlustar/13/ClusterOS/qluman-guide/Host-Filters.htm… [2] http://docs-dev.qlustar.com/Qlustar/13/ClusterOS/qluman-guide/Host-Filters.… [3] https://docs.qlustar.com/Qlustar/13/HPCstack/hpc-admin-manual.html [4] https://spack.readthedocs.io/en/latest/ [5] https://docs.qlustar.com/Qlustar/13/HPCstack/hpc-user-manual.html#chap-hpc-… [6] https://docs.qlustar.com/Qlustar/13/HPCstack/hpc-user-manual.html

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Security/Bug fix releases 13.0.2, 12.0.2.2, 11.0.1.21
by Qlustar List 27 Mar '23

27 Mar '23

The Qlustar releases 13.0.2, 12.0.2.2 and 11.0.1.21 are ready including a number of security/bug fixes and improvements. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2023/0325231 https://qlustar.com/qsa/2023/0325232 The following non-security related updates/enhancements/bug fixes are included: For Qlustar 13 only: - Update to MLNX OFED 5.8-2.0.3.0 For Qlustar 13 and 12.0 only: - Update to QluMan 13.1.0 - Update Nvidia drivers to 525.89.02

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Security/Bug fix releases 13.0.1, 12.0.2.1, 11.0.1.20
by Qlustar List 18 Feb '23

18 Feb '23

The Qlustar releases 13.0.1, 12.0.2.1 and 11.0.1.20 are ready including a number of security/bug fixes and improvements. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2023/0216231 https://qlustar.com/qsa/2023/0216232 The following non-security related updates/enhancements/bug fixes are included: For Qlustar 13 only: - Update to MLNX OFED 5.8-1.1.2.1 For Qlustar 13 and 12.0 only: - Update to QluMan 13.0.4 - Update to Lustre 2.15.2 - Update to ZFS 2.1.9

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One more present from Santa - Qlustar 13
by Qlustar List 29 Dec '22

29 Dec '22

The Qlustar team is pleased to announce the immediate availability of Qlustar 13 for download [1]. It updates Qlustar's core platform to current Ubuntu 22.04 LTS. The AlmaLinux [2] edge platform remains based on 8.6 while CentOS 7 [3] is still supported via Qlustar 12 images and the new cross-version compatibility. The highlights of this release are the addition of BMC hardware management via IPMI/Redfish in QluMan, the integration of Spack as the new HPC package manager and the cross-version compatibility between Qlustar releases. QluMan's new *BMC hardware management* support allows for BMC authentification management, power control of nodes via IPMI or Redfish, the display of BIOS settings as well as their validation and correction. A cumulative problem report showing an overview of cluster node misconfigurations has also been added to QluMan. Spack [4] has been introduced as the new package manager for HPC related application software beyond the so-called *Qlustar HPC core stack*. It offers a huge list of supported software packages and by design provides hardware optimized versions of them. The HPC core stack is a new component definition within Qlustar and is related to the introduction of Spack. Rather than aiming to provide as much HPC functionality as possible by OS packages (debs/rpms), the HPC core stack now makes a clear cut between Qlustar related system software which remains provided as OS packages and HPC application software. Starting with this release, *cross-version compatibility* between the current and the previous Qlustar release has been added. In practice this means, that on a cluster with a Qlustar 13 head-node you can still run nodes with Qlustar 12 images/chroots and vice versa. This new feature was added to allow even smoother release upgrades. Highlights among the various *major component updates* include Kernel 5.15.x, Slurm 22.05.x, Lustre 2.15.1, ZFS 2.1.6 and BeeGFS 7.3.2. Please read the release notes [5] for more details. [1] https://qlustar.com/download/ [2] https://almalinux.org/ [3] https://www.centos.org/ [4] https://spack.readthedocs.io/en/latest/ [5] https://docs.qlustar.com/Qlustar/13/ClusterOS/release-notes.html

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Is it possible to add modules to qlustar linux kernel?
by pierre-yves.boelle＠upmc.fr 20 Dec '22

20 Dec '22

Hi all, I'm trying to set up Qlustar 12.0 with ubuntu focal on a HP machine equiped with a smart array controller P816i-a. The problem is that the smart array is not recognized after install: I can see it with lspci, but the disks are not listed in /dev. As far as I understand, this is a driver issue : the smartpqi module is required for this smart array. This module is available from "linux-modules-extra" in ubuntu focal 20.04, but this package is not part of the qlustar distribution. So questions : 1 - Is there a way I can simply add a required module (for example .ko file) in the qlustar kernel and simply recompile the qlustar kernel? 2 - failing that, should I expect trouble running qlustar with a "pure ubuntu" kernel ? If I add the focal repository in apt sources and install linux-modules-extra, I can build a new kernel OK, but it is "pure ubuntu" - not qlustar. Is qlustar kernel just a light version of the ubuntu kernel and that's ok? or does qlustar include extra components ? Any input appreciated PYB

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Security/Bug fix releases 12.0.2.0-b556f1460/11.0.1.19-b549f1462
by Qlustar List 20 Dec '22

20 Dec '22

The Qlustar releases 12.0.2.0-b556f1460 and 11.0.1.19-b549f1462 are ready including a number of security/bug fixes and improvements. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2022/1219221 https://qlustar.com/qsa/2022/1219222 The following non-security related updates/enhancements/bug fixes are included: For 12.0 only: - Update to QluMan 13.0.2 (check the upcoming Qlustar 13 release notes for a description of new features) - Update Nvidia drivers to 515.86.01 - Update to pmix 4.1.2 - Update to slurm 22.05.6 - Update to ucx 1.13.0 - Update to ZFS 2.1.6

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apt, lost in a maze after recent update.
by Gerhard W. Recher 21 Nov '22

21 Nov '22

Hi Qlustar fellows! I recently installed update to qlustar 12, but got a problem with nvidia stuff.... i have no idea how to clean up this mess... help is apprechiated ! apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt --fix-broken install' to correct these. The following packages have unmet dependencies: libucx0 : Depends: libcudart11 (>= 11.7.1-ql.1) but it is not installed E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution). 100 root@biocrunch2 ~ # apt --fix-broken install Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following packages were automatically installed and are no longer required: libcudart11.0 linux-image-5.4.134-ql-generic-12.0-10 zfs-modules-5.4.134-ql-generic-12.0-10 Use 'apt autoremove' to remove them. The following additional packages will be installed: libcudart11 The following NEW packages will be installed: libcudart11 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. 103 not fully installed or removed. Need to get 0 B/168 kB of archives. After this operation, 800 kB of additional disk space will be used. Do you want to continue? [Y/n] y (Reading database ... 95268 files and directories currently installed.) Preparing to unpack .../libcudart11_11.7.1-ql.1+12-focal_amd64.deb ... Unpacking libcudart11:amd64 (11.7.1-ql.1+12-focal) ... dpkg: error processing archive /var/cache/apt/archives/libcudart11_11.7.1-ql.1+12-focal_amd64.deb (--unpack): trying to overwrite '/usr/lib/x86_64-linux-gnu/libcudart.so.11.0', which is also in package libcudart11.0:amd64 11.0.3-ql.4+12-focal Errors were encountered while processing: /var/cache/apt/archives/libcudart11_11.7.1-ql.1+12-focal_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) -- Gerhard W. Recher net4sec UG (haftungsbeschränkt) Leitenweg 6 86929 Penzing +49 8191 4283888 +49 171 4802507

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Modifyint timesyncd.conf
by garroyo＠ifimar-conicet.gob.ar 09 Nov '22

09 Nov '22

Hi! I tried to edit /etc/systemd/timesyncd.conf to add fallbackntp but always changes to the default file that only has one line for one server I tried to edit the files in nodes by using the command to edit images: qlustar-image-edit -e Standard-focal /etc/systemd/timesyncd.conf I tried also with chroot-focal Maybe someone could know how to do it, thanks!

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Security/Bug fix releases 12.0.1.1-b548f1445 / 11.0.1.18-b549f1444
by Qlustar List 29 Oct '22

29 Oct '22

The Qlustar releases 12.0.1.1-b548f1445 and 11.0.1.18-b549f1444 are ready including a number of security/bug fixes and improvements. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/qsa/2022/1029221 https://qlustar.com/qsa/2022/1029222

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