September 2018 - Qlustar General - Qlustar Mailing Lists

[Qlustar-General] IMPI
by ignas.bunikis＠scilifelab.uu.se 05 Sep '18

05 Sep '18

Hej, How to correctly set up IMPI? I guess this one is a bit more tricky to trouble shoot, but here's what I have: * IMPI network was set up during installation; * cabling done; * anything to check in BIOS? * following QluMan guide "3.7. IPMI settings" I set "Initialize IPMI: true" in "Generic Property Set" assigned to nodes; * nodes "Hardware Property Set" has "IPMI Adapter: true"; Rebooted everything, started "console-login", but see only headnode. What did I miss? Cheers, Iggy

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[Qlustar-General] SGE
by ignas.bunikis＠scilifelab.uu.se 05 Sep '18

05 Sep '18

Hej, I would like to set up SGE on freshly installed cluster. Could you please briefly describe necessary steps. Cheers, Iggy

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[Qlustar-General] Open file limit
by ignas.bunikis＠scilifelab.uu.se 05 Sep '18

05 Sep '18

Hej, I need to increase Open file limit on the nodes. Should I use customized "limits.conf" and follow admin guide "4.2.5. Adding directories, files, links"? cat /etc/qlustar/common/image-files/my/limits.conf * soft nproc 10024 * hard nproc 10024 * soft nofile 50024 * hard nofile 50024 * soft memlock 255707144 * hard memlock 255707144 cat /etc/qlustar/common/image-files/destinations my/limits.conf /etc/security root:root 644 Is that a good way? Cheers, Iggy

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[Qlustar-General] limit network access
by ignas.bunikis＠scilifelab.uu.se 05 Sep '18

05 Sep '18

Hej, I would like to limit access to the cluster via hosts.allow and hosts.deny. What is the best way to do it? I could create a script in /etc/qlustar/common/rc.boot/ that looks like this: #!/bin/bash echo 'sshd: ALL' >> /etc/hosts.deny echo 'sshd: localhost' >> /etc/hosts.allow echo 'sshd: xxx.xxx.xxx.xxx' >> /etc/hosts.allow Is that ok? Cheers, Iggy

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