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openstackgerrit | Guo Jingyu proposed openstack/neutron-lib master: Add sort_keys retrieving function https://review.opendev.org/657913 | 02:07 |
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ileixe | Hi forks o/ | 07:22 |
ileixe | I want to ask about simple but unfamiliar problems about neutron db. | 07:23 |
ileixe | How neutron assure db consistency? I could not find any code related the race conditions. | 07:23 |
ileixe | Can anyone shed light on it? :) | 07:24 |
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openstackgerrit | Darragh O'Reilly proposed openstack/neutron master: Make OVS controller inactivity_probe configurable https://review.opendev.org/641681 | 07:39 |
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jlibosva | ileixe: we have a retry mechanism in place for API calls. that means if there was a race and one transaction cannot be finished successfully because there was another transaction modifying the same record, the whole operation of failed transaction is retried | 07:48 |
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ileixe | @jibosva oh.. it makes sense. retry_db_errors() is what you said? | 07:51 |
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ileixe | Hm.. the function only care about local session's transaction.. I could not understand how other neutron API server deal with it.. | 07:57 |
ileixe | TT | 07:57 |
jlibosva | ileixe: right, that decorator. there is a single database. every neutron API server connects to the same database | 08:00 |
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ileixe | jlibosva: Yes, I guess there is one database for every neutron api servers. But the variable 'context.session.is_active' can be varied between neutron servers right..? | 08:03 |
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ileixe | I think there is something I am misunderstanding. Is the session being shared among neutron servers? | 08:05 |
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jlibosva | ileixe: no, I think session is per process | 08:08 |
ileixe | jlibosva: hm.. then how can other processes know there is ongoing transactions? | 08:09 |
ileixe | T_Ta | 08:09 |
jlibosva | ileixe: if there is a collision when writing to database, one transaction fails and sqlalchemy raises an exception | 08:10 |
ileixe | jilibosva: Thanks a lot. Myabe it's due to the lack of sqlalchemy background for me. You gave me a lot of hints, so I can see more :) | 08:13 |
jlibosva | ileixe: happy to help to answer at least something :) feel free to ask for more anytime | 08:15 |
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ileixe | :) | 08:16 |
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rm_work | [midonet][odl][vmware-nsx] FYI: http://lists.openstack.org/pipermail/openstack-discuss/2019-May/006158.html | 08:41 |
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openstackgerrit | Gabriele Cerami proposed openstack/neutron master: ML2 plugin: extract and postpone limit in port query https://review.opendev.org/658777 | 09:42 |
panda | ralonsoh: what does the tag neutron-proactive-backport-potential mean ? | 09:48 |
ralonsoh | panda, that means we should backport this patch to previous stable versions | 09:50 |
ralonsoh | like in the one you refer in the commit message | 09:51 |
ralonsoh | panda, https://review.opendev.org/#/q/cf8f3326be14d30456b20e4d1a55a36762daa550 | 09:51 |
panda | ralonsoh: how's different than "queens-backport-potential" for example ? | 09:52 |
ralonsoh | panda, there you are defining a specific version | 09:53 |
ralonsoh | panda, I wrote this in the bug just as a heads-up | 09:53 |
ralonsoh | good catch, BTW | 09:54 |
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openstackgerrit | Lajos Katona proposed openstack/neutron master: Change curl to osc for listing resource provider inventories https://review.opendev.org/656913 | 10:05 |
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openstackgerrit | Hamdy Khader proposed openstack/neutron master: Return VIF type ovs-dpdk for direct switchdev ports https://review.opendev.org/658784 | 10:40 |
openstackgerrit | Reedip proposed openstack/networking-ovn master: Support for Router Scheduling on addition/removal of chassis https://review.opendev.org/591461 | 10:42 |
openstackgerrit | Hamdy Khader proposed openstack/os-vif master: Plug ovs-dpdk vif port type for dpdk representor integration https://review.opendev.org/658786 | 10:47 |
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openstackgerrit | Harald Jensås proposed openstack/neutron master: Notify ironic on port status changes https://review.opendev.org/658787 | 10:52 |
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openstackgerrit | boden proposed openstack/neutron master: DNM: use SqlFixture and StaticSqlFixture from neutron-lib https://review.opendev.org/657887 | 11:28 |
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openstackgerrit | Harald Jensås proposed openstack/neutron master: Conntrack Helper - OVO and db script https://review.opendev.org/650269 | 11:37 |
openstackgerrit | Harald Jensås proposed openstack/neutron master: Conntrack Helper - Plugin https://review.opendev.org/650270 | 11:37 |
openstackgerrit | Harald Jensås proposed openstack/neutron master: Agent - Conntrack Helper https://review.opendev.org/650846 | 11:37 |
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openstackgerrit | Harald Jensås proposed openstack/neutron master: Notify ironic on port status changes https://review.opendev.org/658787 | 12:25 |
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slaweq | jlibosva: hi, can You maybe take a look at https://review.opendev.org/#/c/639009/ if You will have some time? Thx in advance | 12:36 |
jlibosva | slaweq: who are you? I heard real slaweq is on PTO today | 12:36 |
jlibosva | slaweq: look at my comment from today 9:45am :) | 12:36 |
slaweq | jlibosva: thx, I missed this comment :) and I'm "fake" slaweq :P | 12:40 |
bcafarel | that's a damn good imitation of real slaweq ;) | 12:44 |
jlibosva | slaweq: I'm glad it's not a bot with real AI | 12:45 |
slaweq | bcafarel: jlibosva :D | 12:47 |
slaweq | ok, I'm going afk now (I can't imitate real slaweq too much) | 12:47 |
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openstackgerrit | gugug proposed openstack/neutron-dynamic-routing master: Replace git.openstack.org URLs with opendev.org URLs https://review.opendev.org/658530 | 13:07 |
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openstackgerrit | gugug proposed openstack/neutron-dynamic-routing master: Replace git.openstack.org URLs with opendev.org URLs https://review.opendev.org/658530 | 13:09 |
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openstackgerrit | Slawek Kaplonski proposed openstack/networking-ovn master: Make networking-ovn-tempest-slow to be multinode job https://review.opendev.org/658326 | 14:26 |
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openstackgerrit | Bernard Cafarelli proposed openstack/neutron-tempest-plugin master: Migrate networking-sfc tests to neutron-tempest-plugin https://review.opendev.org/653012 | 16:29 |
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openstackgerrit | Gabriele Cerami proposed openstack/neutron master: ML2 plugin: extract and postpone limit in port query https://review.opendev.org/658777 | 16:46 |
openstackgerrit | David Bingham proposed openstack/neutron-specs master: Allow multiple segments per host for routed networks https://review.opendev.org/657170 | 16:48 |
openstackgerrit | Merged openstack/os-vif master: Replace git.openstack.org URLs with opendev.org URLs https://review.opendev.org/655068 | 16:48 |
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openstackgerrit | Rodolfo Alonso Hernandez proposed openstack/neutron master: Force random new IP in "test_port_ip_update_revises" https://review.opendev.org/658866 | 17:07 |
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eandersson | Is there a way to tune the IP Allocator? | 18:03 |
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eandersson | After upgrading to Rocky (from Mitaka) we are seeing a different pattern in how IP addresses are allocated. | 18:03 |
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eandersson | In Mitaka it would cycle through the IPs, so it was less likely for a VM that was re-created to get the same IP address (unless you specifically asked for it) | 18:04 |
eandersson | With Rocky we are seeing a re-created VM get the same IP, especially in tenants with few VMs. | 18:04 |
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tidwellr | eandersson: yes, I made a change to the algorithm made in newton. From newton to Rocky it randomizes within a window of the first 10 IP addresses. For stein widened the window to randomly select from a wider range of the subnet | 18:08 |
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tidwellr | eandersson: I should say first 10 *available* addresses | 18:09 |
eandersson | Would it be possible to increase that number? | 18:10 |
tidwellr | eandersson: we expanded the selection window in stein | 18:10 |
tidwellr | what problem are you seeing? | 18:10 |
eandersson | Would you happen to have the commit or patch handy? :D | 18:10 |
tidwellr | what problem is the smaller window causing you? | 18:12 |
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tidwellr | eandersson: here's the patch I was talking about we added in stein https://review.opendev.org/#/c/592164/ . This change also tweaked the randomization mechanism so it does a better job at selecting unique addresses. What is the problem you're facing? | 18:17 |
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ccstone | (I'm working with eandersson also) Since we upgraded from mitaka to rocky we've seen some VMs fail to get metadata on startup for a little while. We're starting to suspect an ARP related issue when a VM with an IP that was recently freed up gets used on a different rack. In mitaka we may not have noticed the issue since since it looks like it goes sequentially through the pool, very unlikely to reuse. | 18:19 |
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tidwellr | ccstone: makes sense, we don't work sequentially through the subnet anymore for various reasons mostly related to concurrency and support for distributed DB setups with galera | 18:21 |
tidwellr | ccstone: the patch I mentioned should help quite a bit, especially with larger subnets | 18:23 |
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eandersson | Do you see any obvious issues with backporting that one to Rocky? | 18:28 |
tidwellr | eandersson: it probably can be cherry-picked cleanly if you wanted to customize it yourself, but I'm not sure this is something we would necessarily backport upstream though | 18:31 |
eandersson | For sure that is fine | 18:31 |
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eandersson | Thanks for the help tidwellr | 18:38 |
openstackgerrit | Harald Jensås proposed openstack/neutron master: Notify ironic on port status changes https://review.opendev.org/658787 | 18:48 |
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openstackgerrit | Slawek Kaplonski proposed openstack/networking-ovn master: Make networking-ovn-tempest-slow to be multinode job https://review.opendev.org/658326 | 19:23 |
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openstackgerrit | Brian Haley proposed openstack/networking-ovn master: Floating IP does not work with VLAN tenant networks https://review.opendev.org/658923 | 21:20 |
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openstackgerrit | Brian Haley proposed openstack/networking-ovn master: Add additional tests for networking_ovn.ovsdb.commands https://review.opendev.org/658924 | 21:24 |
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openstackgerrit | Brian Haley proposed openstack/neutron master: Use --bind-dynamic with dnsmasq instead of --bind-interfaces https://review.opendev.org/658240 | 21:43 |
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openstackgerrit | Swaminathan Vasudevan proposed openstack/neutron master: DVR: Add ARP responder flows for allowed_address_pair IP https://review.opendev.org/601336 | 22:55 |
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