July 2021 - Qlustar General - Qlustar Mailing Lists

[Qlustar-General] Node Replacement Issue - Infinite DNSMasq Lease in /var/lib/misc/dnsmasq.leases
by hereiam＠mit.edu 24 Nov '21

24 Nov '21

Hi everyone, I've run into what may be an uncommon issue when replacing nodes in Qluman. Say I have a node all configured, then I completely remove that machine and replace it with a new one (may or may not be different specs). I have noticed that Qluman allows one to make the new node in the configs, but it never boots Qlustar. I also found the fix - the file /var/lib/misc/dnsmasq.leases doesn't appear to get updated *only when deleting a node.* Adding new nodes works perfectly, as does changing MAC addresses. However, I've had to go in and manually delete the corresponding entries from the file on the headnode, after which Qluman works perfectly adding a New Host with the old IP address. Can anyone else reproduce this issue, and if so, would an addition to the scripts to the tune of deleting the line matching the hostname or MAC address in /var/lib/misc/dnsmasq.leases be required for the next round of updates? It makes sense that leases should have infinite lifetime in a cluster (nodes should sit tight for years), though in this rare situation it requires a bit of extra manual tweaking. Thanks, -Mike

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Difficulties installing Qlustar 12 on HP server
by david.whipp＠helsinki.fi 03 Aug '21

03 Aug '21

Hi, I have an HP Proliant DL380p (gen8) server that has been used as our head node for a Qlustar 10 cluster for several years now. We've recently decided to upgrade to Qlustar 12 (via a clean install) and I have been having issues with the installer not being able to find a disk for the installation. When I boot from USB the installer starts as expected, but once it loads I receive the message "No disks found - The installer ha not found any unused disks, installation cannot continue.". I've done some googling and found a few similar issues, mostly related to RAID, but no solution yet. The server does have a hardware RAID disk controller (HP P420i) and the target disk is a RAID 1 logical volume. The odd thing is that dropping into a shell and using lsblk shows the target RAID volume and another on the same controller as /dev/sda1 and /dev/sdb1. The RAID partitions also appear in the output of `cat /dev/partitions`, and it appears that the hpsa module has loaded properly from the output of `lsmod | grep hpsa`. We've today updated the BIOS and RAID controller firmware on the server and are still having no luck with proceeding with the install (same error every time). I am tempted to test things with the installer for Qlustar 11, but it no longer appears to be available online. Any suggestions? Thanks! Dave p.s. I won't be able to have physical access to the cluster again until July 20, but can try to answer any questions that come up here in the meantime.

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Security/Bug fix releases 12.0.0.5-b542f1391 / 11.0.1.9-b543f1392
by Qlustar List 24 Jul '21

24 Jul '21

The Qlustar releases 12.0.0.5-b542f1391 and 11.0.1.9-b543f1392 are ready including a number of security/bug fixes and improvements. In particular, they include a fix for the Sequoia local root exploit bug https://www.qualys.com/2021/07/20/cve-2021-33909/sequoia-local-privilege-es… Please check the following web pages for details about all security fixes and special update instructions: https://qlustar.com/qsa/2021/0724211 https://qlustar.com/qsa/2021/0724212 The following non-security related enhancements/bug fixes are included: For 12.0 only: - ntpd is replaced by systemd-timesyncd as the daemon to sync system time between head-node(s) and netboot nodes.

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Qluman
by kb0ebg＠juno.com 19 Jul '21

19 Jul '21

Greetings; Once again I must ask for advice. I get frustrated and give up, but I find it's a chalange I must keep working at. Setting my Gateway router to Port Forwarding :80 and assigning cl-head a static IP.I have completed the initial install. First Steps made it through without errors.This helped with 'HTTP Proxy' and the http: downloads from the repo access. I have setup a laptop as user@workspace, and installed 'qluman-12.0.2.0-singularity.sqsh', singularity, go, and associated files. user@workspace:~$ $HOME/qluman-12.0.2.0-singularity.sqshQstandsrdPaths: XDG_RUNTIME_DIR points to non-existing path'/run/user/1000', please create it with 0700 permissions.Qt: Session management error: None of the authentication protocols specified are supported. What Command line would you recommend to createa Path to '/run/user/1000' with 0700 permissions ? I have tried to no avail.user@workspace:~$ chmod 0700 /run/user/1000user@workspace:~$ chmod 0700 $HOME/qluman-12.0.2.0-singularity.sqsh Carlp.s. I love the structure of Qlustar. ____________________________________________________________ Sponsored by https://www.newser.com/?utm_source=part&utm_medium=uol&utm_campaign=rss_tag… Turkish Advocacy Puts Giuliani Under Investigation http://thirdpartyoffers.juno.com/TGL3131/60db7b57f348b7b574ec1st03duc1 75 Days Before Condo Collapse, Residents Got Cautionary Letter http://thirdpartyoffers.juno.com/TGL3131/60db7b5823d647b574ec1st03duc2 Made to Testify, Durst's Brother Speaks: 'He'd Like to Murder Me' http://thirdpartyoffers.juno.com/TGL3131/60db7b584a4567b574ec1st03duc3

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Relay Mail
by kb0ebg＠juno.com 16 Jul '21

16 Jul '21

My email is with juno.com. They don't use relays. Installation requires a relay, the png example uses the DNS address. That has not worked for me. What could be used to meet installation requirements ? Carl ____________________________________________________________ Choose to be safer online. Opt-in to Cyber Safety with NortonLifeLock. Plans starting as low as $6.95 per month.* https://store.netzero.net/account/showService.do?serviceId=nz-nLifeLock&utm…

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how to add nodes
by praveen＠aukcomputing.com 09 Jul '21

09 Jul '21

hi all, i new this Qlustar i want to know how to add nodes into the cluster like stepes in hwwizard it's says hw info missing

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Qlustar 12.0
by kshitij pathak 09 Jul '21

09 Jul '21

Dear Support Team, I would like to tell you that I am installing Qlustar 12.0 in my master node and also completed the installation. I am writing this mail to you because I am not able to connect my compute nodes to the master node. I have even created a certificate for the connection but am not able to proceed further. After putting the password for the certificate and clicking on the connect button a GUI is opened but nothing happens. I am watching the Screenshot kindly go through it once. Please do the needful for the mentioned above. -- Thanks & Regards *Kshitiz Pathak* 7710952632 Mumbai

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Security/Bug fix releases 12.0.0.4-b542f1382 / 11.0.1.8-b543f1384
by Qlustar List 09 Jul '21

09 Jul '21

The Qlustar releases 12.0.0.4-b542f1382 and 11.0.1.8-b543f1384 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/2021/0706211 https://qlustar.com/qsa/2021/0706212 The following non-security related enhancements/bug fixes are included: For 12.0 only: - QluMan 12.0.3.1 (GUI update to 12.0.3.1 needed as well) * Add pre-systemd node customization via new config class * Add AD user import functionality in GUI (final) * Add support for DHCP-less boot * Add PrologFlags=X11 to default slurm config * Add support for routed networks as primary boot networks and in NetworkFSMounts * Exexd now sets the correct time in pre-systemd boot phase * Don't show slurm stuff in GUI if slurm is not installed * Ignore mouse wheel events in comboboxes to prevent accidental changes * SlurmJobManagement: Simplify customizing columns * Drop obsolete torque pam support * Fix version update check - slurm module * Introduce group 'node-ssh'. Members of this group are always allowed to make a node ssh login, even without slurm job. - Added virtualGL image modules (experimental) For 11.0/12.0: - Move CentOS 8 edge platform to 8.4 + OpenHPC 2.3

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i have a issue while installing
by praveen＠aukcomputing.com 08 Jul '21

08 Jul '21

i have download the qlustar 12.0 iso while installing kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block(0,0) i'm getting the above error will help me to resolve

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Qlustar General July 2021