| *** ysandeep|out is now known as ysandeep | 00:14 | |
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| NeilHanlon | i've got a stupid question that's more of a general openstack one, but in any case.. I've got a simple network setup in a three node cluster (one each infra, compute, storage (cinder)); I can see traffic leaving a VM on the private network and even being SNAT'ed from the infra box on the correct interface. through tcpdump, I see a response packet | 13:29 |
|---|---|---|
| NeilHanlon | come in, and then.. _nothing_.. so then another packet goes and does the same thing. was pulling my hair out last night lol | 13:29 |
| damiandabrowski[m] | hmm, i've seen 2 behaviors similar to Yours lately: | 13:43 |
| damiandabrowski[m] | a) (response packets were reaching physical net infrastructure but not even the openstack router) - it was caused by the GARP bug so the switch had outdated entry in a MAC address table: https://bugs.launchpad.net/neutron/+bug/1952907 | 13:43 |
| damiandabrowski[m] | b) (response packets were reaching router but not VM's compute node) - for some reason(probably some failed migrations) i had stale port bindings in neutron.ml2_port_bindings table(multiple bindings for the same port). That was why my network nodes contained incorrect OVS flows, so it was sending response packets to the incorrect compute nodes. | 13:43 |
| damiandabrowski[m] | (but i just noticed that You have only one network/infra node and only one compute node, so none of the above problems may apply to You :/) | 13:49 |
| NeilHanlon | heh, yeah i just poked around and I don't appear to have at least any stale port bindings in that table, but I wouldn't at all be surprised if there's something mucked up. I think i'll rebuild the lab this afternoon and see if I can make it work from scratch. I suspect it's more to do with my screwing around with linuxbridge agent port bindings, | 13:53 |
| NeilHanlon | etc, while learning | 13:53 |
| damiandabrowski[m] | okok, good luck! | 14:01 |
| NeilHanlon | thanks I'll need it lol | 14:03 |
| *** ysandeep|afk is now known as ysandeep | 14:05 | |
| spatel | Quick question, my controller running on kernel 5.4.0-42-generic. can i upgrade kernel on compute node to 5.4.0-107-generic ? | 14:10 |
| spatel | I want to upgrade nic driver so thinking to upgrade kernel also | 14:10 |
| damiandabrowski[m] | sure, i see no reason not to do it | 15:53 |
| *** ysandeep is now known as ysandeep|out | 15:55 | |
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| *** dviroel is now known as dviroel|lunch | 15:59 | |
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| spatel | damiandabrowski[m] i just did and all good :) | 16:57 |
| spatel | thank you | 16:57 |
| damiandabrowski[m] | awesome! | 16:58 |
| *** dviroel|mtg is now known as dviroel | 17:19 | |
| spatel | I have ubuntu grub question, i have multiple kernel install on ubuntu 20.04. How do i set default kernel? I know how to do it in CentOS using grubby tool but not sure how to do in ubuntu? | 18:25 |
| spatel | https://paste.opendev.org/show/bs6QrpzHW1mevQV0yd8T/ | 18:25 |
| spatel | I want to make linux-image-5.4.0-107-generic default | 18:25 |
| damiandabrowski[m] | hmm, isn't it `GRUB_DEFAULT` in /etc/default/grub? https://www.gnu.org/software/grub/manual/grub/html_node/Simple-configuration.html | 18:28 |
| *** dviroel is now known as dviroel|brb | 18:28 | |
| spatel | GRUB_DEFAULT="Ubuntu, with Linux 5.4.0-107-generic" ? | 18:31 |
| spatel | like that? | 18:31 |
| damiandabrowski[m] | should work, never tested it though | 18:32 |
| damiandabrowski[m] | or You can use number to specify the n-th entry in grub.cfg | 18:32 |
| damiandabrowski[m] | PS. Yo'll need to run update-grub afterwards | 18:33 |
| spatel | ok let me try number | 18:33 |
| spatel | I found one more command: grub-set-default <index> | 18:35 |
| *** dviroel|brb is now known as dviroel | 18:41 | |
| spatel | that works! :) | 18:41 |
| damiandabrowski[m] | \o/ | 18:55 |
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| *** dviroel is now known as dviroel|out | 20:42 | |
| dmsimard | FYI, in case you missed it, it's ansible contributor summit next tuesday: https://hackmd.io/@ansible-community/contrib-summit-202204 | 22:51 |
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