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[Qlustar-General] restart vFE
by ignas.bunikis＠scilifelab.uu.se 20 May '21

20 May '21

Hej, Basic question: can one restart vFE without rebooting whole headnode? Cheers, Iggy

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[Qlustar-General] Qluman Writes Incorrect Permissions to /etc/sssd.conf on Diskless Compute Nodes
by hereiam＠mit.edu 30 Apr '21

30 Apr '21

Hi everyone, This is my first post, and so far I love Qlustar! Just what I've been looking for, you've done amazing work here. I noticed that my physical compute nodes, which are all diskless, fail when Qluman tries to write the Namespace Configurations. Upon trying lots of things, I found that the file /etc/sssd.conf is written with '644' permissions, causing the sssd.service to not start. However, when I manually change these with 'chmod 600 /etc/sssd.conf' and restart the service with 'service restart sssd' when SSH'ed into a compute node, it works perfectly. So my question is, how can I change the permissions of a config file which Qluman writes to all nodes? I think this is my last barrier to a properly provisioned cluster. Thanks, -Mike

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[Qlustar-General] Security/Bug fix releases 12.0.0.2-b531f1351 / 11.0.1.6-b533f1350
by Roland Fehrenbacher 28 Apr '21

28 Apr '21

The Qlustar releases 12.0.0.2-b531f1351 and 11.0.1.6-b533f1350 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/news/qsa-0320211-linux-kernel-vulnerabilities https://qlustar.com/news/qsa-0320212-security-update-bundle The following non-security related enhancements/bug fixes are included: For 12.0 only: - QluMan 12.0.1.0 * Add support for home directories on servers other than the head-node * Network FS mounts: respect Network Override * Improve saving of window geometries * Allow cluster commands to execute on headnodes and show correct execute-on in ExecuteWidget * Fix exception when importing a newly generated auth token * NetworkConfigWidget: Adjust column sizes * Nameservices: add group membership to passwd-sync method * Nameservices: fix permission of sssd.conf on updates * RxEngine: Fix kill/redo button in tabs - Set Infiniband node_desc to the node's hostname on nodes with IB adapters. This allows for better IB fabric analysis. - Prevent motd to display twice upon login on CentOS 8.

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[Qlustar-General] Security/Bug fix releases 12.0.0.3-b536f1363 / 11.0.1.7-b533f1362
by Roland Fehrenbacher 28 Apr '21

28 Apr '21

The Qlustar releases 12.0.0.3-b536f1363 and 11.0.1.7-b533f1362 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/news/qsa-0427211-linux-kernel-vulnerabilities https://qlustar.com/news/qsa-0427212-security-update-bundle The following non-security related enhancements/bug fixes are included: For 12.0 only: - QluMan 12.0.2.0 (GUI update to 12.0.2.0 needed as well) * remove ipv4/ipv6/mac columns from Hosts table on update * LDAP user creation: don't run add_user_hook when homedir already exists * LDAP ConfigWidget: check nextuid/gid for being in use already * Nameservices: Add right to write the Nameservice config class. * RxEngine: Allow execution on head-nodes but only for pre-defined commands with "Execute On" set to "HEADNODE(S)" * Rights Management: Fix permissions for write files * Lustre mount configs: Properly name lnets * Nameservices: Restore passwd/group files when turning off nameservices * Fix wrong routing for CentOS 8 nodes when a non-default gateway is configured - Make OpenSM respect QluMan configured options when running on netboot nodes For 11.0 and 12.0: - Update to Nvidia graphics driver version 460.73.01

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[Qlustar-General] Error trying to install Qlustar
by juancarlos.armas＠russula.com 17 Feb '21

17 Feb '21

Hello, While trying to install Qlustar 12 on one node of the server appears the next error: "The installer has not found any unused disks, installation cannot continue". ISO is directly connected though KVM to the server, so install media shouldn't be the problem. Opening a shell and executing "mdadm --detail-platform" appears this error: "imsm capabilities not found for controller..." and doesent show the existing volume. I have a RAID0 configured with 2 SSDs on a Intel RSTe RAID controller. Model of the server is SYS-6028TP-HTFR. Other SOs can install flawless. Thank you for your help in advice.

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[Qlustar-General] Physical front-end
by shoup.31＠osu.edu 08 Feb '21

08 Feb '21

Hi, I am new to this list. I have a small cluster (3 physical compute nodes, (8 cores/16 threads/64GB ram each) head node & VM-FE) with qlustar 12.0 installed. I am using it to run the Einstein Toolkit (numerical general relativity package). I would like to setup a physical front-end node for my system. My questions are: 1. Does the physical front-end node have to be net-bootable (via the head node)? 2. What qlustar software do I need on it? Is there an automated method for installing it? 3. Do I have to manually install slurm on it to submit jobs to the cluster from the physical front end node? 4. Do I need to register the physical front end node in qluman-qt? Thanks for any help you can provide. Tony...

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[Qlustar-General] Attribute 'filter_group' is not allowed in section 'nss'
by rolnas＠gmail.com 04 Feb '21

04 Feb '21

Hi, In Qlustar 12 sssd.conf file contains filter_group attribute, when by manual it should be filter_groups. Nothing very bad happens, only warning in log file and this setting is ignored. Regards Rolandas

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[Qlustar-General] Critical sudo vulnerability
by Roland Fehrenbacher 29 Jan '21

29 Jan '21

A critical sudo vulnerability has been discovered. You are advised to update as soon as possible. See https://qlustar.com/news/qsa-0128211-sudo-vulnerabilities for details

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[Qlustar-General] After fresh qlustar 12 install no way to generate access token
by rolnas＠gmail.com 26 Jan '21

26 Jan '21

Hi, root@lxibm000 ~ # qluman-cli --gencert Traceback (most recent call last): File "/usr/lib/python3/dist-packages/qluman-12/qluman-cli.py", line 1549, in <module> main() File "/usr/lib/python3/dist-packages/qluman-12/qluman-cli.py", line 1542, in main cluster = Cluster(config=config) File "/usr/lib/python3/dist-packages/qluman-12/client/cli/network.py", line 76, in __init__ self._node = Node(config=config, on_db_update=self._on_db_update) File "/usr/lib/python3/dist-packages/qluman-12/client/cli/network.py", line 53, in __init__ super().__init__(*args, socket_path=socket_path, TypeError: __init__() missing 1 required keyword-only argument: 'name' The same with qluman-cli --gencert -u admin -o token or qluman-cli --gencert -u admin qlustar-initial-config was done already and server rebooted. Regards Rolandas Naujikas P.S. Can newer version of qluman be used for older version of headnode ? Or it is better to use the same major version ?

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[Qlustar-General] Security/Bug fix releases 12.0.0.1-b528f1339 / 11.0.1.5-b527f1338/40
by Roland Fehrenbacher 20 Jan '21

20 Jan '21

The Qlustar releases 12.0.0.1-b528f1339 and 11.0.1.5-b527f1338/40 are ready including a number of security and bug fixes. Please check the following web pages for details about security fixes and special update instructions: https://qlustar.com/news/qsa-0118211-linux-kernel-vulnerabilities https://qlustar.com/news/qsa-0118212-security-update-bundle https://qlustar.com/news/qsa-0118213-security-update-bundle The following non-security related enhancements/bug fixes are included: Both 11.0 and 12.0 update to - The latest Nvidia graphics drivers 460.32.03 supporting recently introduced Nvidia hardware. - The latest ZFS 0.8.6 fixing a memory management bug. Fixes for 12.0 only: - QluMan 12.0.0.39 * Detect IB nics with names other than ib[0-9] * Fix preserving minimized/maximized state for windows * Fix cloning of "Network FS Mounts" configs * Fix kernel options editor for "Network FS Mounts" configs

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