Monday, 2021-05-10

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jrossermorning07:12
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openstackgerritJonathan Rosser proposed openstack/ansible-role-pki master: WIP - Create server certificates  https://review.opendev.org/c/openstack/ansible-role-pki/+/78802107:28
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openstackgerritJonathan Rosser proposed openstack/openstack-ansible-openstack_hosts master: Adjust openstack_distrib_code_name  https://review.opendev.org/c/openstack/openstack-ansible-openstack_hosts/+/77462411:13
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ptoI had a openstack crash today, due to mariadb beeing killed by the oom killer. Out Database experts asked why the https://github.com/openstack/openstack-ansible-galera_server/blob/1bb878049915c64dc588a8b8ef0e51c70825359a/templates/systemd.environment.conf.j2 did not contain "OOMScoreAdjust=-1000" which makes the linux oom killer prioritize other processes than galera. Anyone know why this is not implemented?11:56
openstackgerritPerToft proposed openstack/openstack-ansible-galera_server master: Added OOMScoreAdjust to systemd environment config to avoid mariadb galera to be killed in a oom situration Closes-Bug: #1927951  https://review.opendev.org/c/openstack/openstack-ansible-galera_server/+/79042612:12
openstackbug 1927951 in openstack-ansible "MariaDB Galera OOMScoreAdjust" [Undecided,New] https://launchpad.net/bugs/192795112:12
jrosseri guess it's kind of hard to say which think you'd rather have OOM-killed, it's bad that it's happening in any event12:27
jrosserperhaps its valid to have galera as lower priority but it does feel like a bit of a band-aid somehow12:28
openstackgerritJonathan Rosser proposed openstack/ansible-role-pki master: WIP - Create server certificates  https://review.opendev.org/c/openstack/ansible-role-pki/+/78802112:52
ptojrosser: The cluster were down a couple of hours before everything settled after mariadb@node1 were killed, this resulted in mariadb@node2 were locked as a donor and i dont think Mariadb will operate when only one node is online - not sure here. There were allot of processes which could not do queries and restarted.12:52
ptojrosser: I have proposed a fix, but I dont know if something should be done to the resource management of the LXC containers?12:53
jrosseri guess so, though that will be hard12:56
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jrosseras you'd have to come up with memery limits for the individual containers which would not be able to be exceeded12:57
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jrosserand instinct tells me thats going the be a worse overall outcome12:57
openstackgerritJonathan Rosser proposed openstack/openstack-ansible-openstack_hosts master: Use PKI role to install CA certificates  https://review.opendev.org/c/openstack/openstack-ansible-openstack_hosts/+/79043113:01
ptojrosser: We have several large galara clusters (non openstack), and we have avoided many disasters by lowering the oom kill priority on the databases13:01
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admin0anyone worked with pci-passthrough before ?14:51
jrosseryes, i've done pci-passthough of GPU14:53
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openstackgerritJonathan Rosser proposed openstack/openstack-ansible-openstack_hosts master: Use PKI role to install CA certificates  https://review.opendev.org/c/openstack/openstack-ansible-openstack_hosts/+/79043115:01
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admin0jrosser, just a shot if you know .. if i have a pci whitelist in nova.conf like this: https://gist.github.com/a1git/77db09053cf2871eae65208be41f5a0f  . how do I tell a flavor to use the pcipass1 and pcipass4 device ?15:24
jrosseradmin0: is this for neutron SRIOV ports, or PCI passthrough of some generic device?15:31
admin0neutron sriov ports15:31
jrosserwell, i have something like http://paste.openstack.org/show/805172/ for sriov15:34
jrosserand that results in passthrough_whitelist = [{ "physical_network": "physnet_neutron", "devname": "enp59s0f0" }] in the [pci] section of nova.conf15:36
jrosseryou would then create the neutron ports using the cli15:39
jrosserand boot the instance with the ports you've just created specificed also on the cli15:39
jrosseradmin0: ^ does this help?15:40
admin0i will compare and try15:41
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openstackgerritJonathan Rosser proposed openstack/openstack-ansible master: WIP - Test PKI role  https://review.opendev.org/c/openstack/openstack-ansible/+/78803116:07
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admin0jrosser, will it be different if its  generic network devie ?17:37
admin0device*17:37
jrosserI guess you need to instruct the nic which vlan to allow17:39
jrosserthat’s why neutron has dedicated handling for sriov nic17:39
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jrosseradmin0: is there something specific thats not working for you?17:49
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admin0jrosser, i am trying to understand the issue .. something got forward saying its "not working" .. so going into depth18:33
admin0i have 3 instances running active in a project .. if i click any 2 of them .. i get the console and the instances tab just find .. if I click the one, it gives horizon -18:45
admin0Something went wrong!18:45
admin0An unexpected error has occurred. Try refreshing the page. If that doesn't help, contact your local administrator. error .. nova server list shows the server being just fine18:45
admin0just a normal hostname also18:46
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