June 2021 - Qlustar General - Qlustar Mailing Lists

[Qlustar-General] Node Replacement Issue - Infinite DNSMasq Lease in /var/lib/misc/dnsmasq.leases
by hereiam＠mit.edu 25 Nov '21

25 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

4 5

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

3 3

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

2 1