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openstackgerrit | Merged openstack/neutron-lib master: Update the minversion parameter. https://review.opendev.org/707413 | 01:32 |
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openstackgerrit | Merged openstack/neutron-tempest-plugin master: Enhance the test_multicast_between_vms_on_same_network test https://review.opendev.org/705776 | 02:22 |
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openstackgerrit | Merged openstack/neutron-tempest-plugin master: Use default cirros image to reap the benefits of infra cache https://review.opendev.org/702946 | 02:31 |
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openstackgerrit | Slawek Kaplonski proposed openstack/neutron master: Merge networking-ovn documentation into neutron https://review.opendev.org/701571 | 08:54 |
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openstackgerrit | Rodolfo Alonso Hernandez proposed openstack/neutron master: "ping"/"ping6" command support in rootwrap filters https://review.opendev.org/707452 | 09:21 |
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openstackgerrit | Tom Stappaerts proposed openstack/neutron master: Support for stateless security groups https://review.opendev.org/572767 | 09:27 |
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openstackgerrit | Lucas Alvares Gomes proposed openstack/neutron master: [OVN] Add IGMP snooping support https://review.opendev.org/705237 | 09:31 |
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openstackgerrit | Akihiro Motoki proposed openstack/neutron master: Merge networking-ovn documentation into neutron https://review.opendev.org/701571 | 09:54 |
lucasagomes | maciejjozefczyk: as a quick test, on the functional test patch... Can we change the parent of that job from "devstack-minimal" to "devstack"... Not sure, I wonder if the minimal one is struggling with the new services running | 09:57 |
lucasagomes | and making things fail all the time | 09:57 |
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lucasagomes | maciejjozefczyk: can I make that change for a test in ur patch ? | 09:57 |
maciejjozefczyk | lucasagomes, yes please :) | 09:58 |
lucasagomes | ack | 09:59 |
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openstackgerrit | Lucas Alvares Gomes proposed openstack/neutron master: [OVN] Add OVN functional tests - part 1 https://review.opendev.org/701733 | 10:00 |
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openstackgerrit | Maciej Józefczyk proposed openstack/neutron master: [OVN] Add OVN functional tests - part 1 https://review.opendev.org/701733 | 10:31 |
TomStappaerts | Hi guys, I am struggling with an OVN unit test. neutron.tests.unit.plugins.ml2.drivers.ovn.mech_driver.test_mech_driver.TestOVNMechanismDriverPortsV2.test_port_create_resillient_to_duplicate_records is failing on me with Standard attribute ID not found. I can't figure out what is wrong with my patchset https://review.opendev.org/#/c/572767/ that triggers this error. Anyone willing to shed some light on that for me? | 10:35 |
openstackgerrit | David Shaughnessy proposed openstack/neutron master: Introduction of Neutron Classifier https://review.opendev.org/670050 | 10:36 |
slaweq | TomStappaerts: You should probably ask maciejjozefczyk or lucasagomes for help with ovn driver's unit tests | 10:40 |
openstackgerrit | David Shaughnessy proposed openstack/neutron-lib master: Neutron-Classifier service plugin https://review.opendev.org/670049 | 10:40 |
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* lucasagomes looks | 10:42 | |
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lucasagomes | TomStappaerts: that's strange, I can't point the error just by looking at ur patch... The error itself means that the port created in that test doesn't have a corresponding standard attribute id to it (in the standardattributes table) | 10:53 |
lucasagomes | the standard-attr extension seems to be enabled, otherwise it would fail on other tests | 10:53 |
lucasagomes | hmmm | 10:53 |
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TomStappaerts | lucasgomes Yeah this one is puzzling me :/ | 10:56 |
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maciejjozefczyk | TomStappaerts, strange, let me debug it | 11:09 |
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ralonsoh | TomStappaerts, maciejjozefczyk lucasagomes: this test is trying to check what is happening if another thread is taking first the same IP (IPAllocations register) | 11:22 |
ralonsoh | by creating a "grenade" IPAllocations class | 11:23 |
ralonsoh | that explodes when the transaction is done | 11:23 |
ralonsoh | that means when the precommit notification is done | 11:24 |
ralonsoh | the query in "_get_standard_attr_id" will return nothing for this port ID, because this transaction will fail | 11:24 |
ralonsoh | in this case, you should overwrite this test for OVN mech driver and patch any OVN notification | 11:25 |
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maciejjozefczyk | ralonsoh, ack, actually If I run the test_port_create (its different test) separately, it also fails: "tox -e py3 neutron.tests.unit.plugins.ml2.drivers.ovn.mech_driver.test_mech_driver.TestOVNMechanismDriverPortsV2.test_port_create' | 11:38 |
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maciejjozefczyk | ralonsoh, sorry, the test is the same, ack | 11:39 |
ralonsoh | maciejjozefczyk, | 11:40 |
ralonsoh | File "/opt/stack/neutron/neutron/db/ovn_revision_numbers_db.py", line 94, in _get_standard_attr_id | 11:40 |
ralonsoh | id=resource_uuid).one() | 11:40 |
ralonsoh | File "/opt/stack/neutron/.tox/py3/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3354, in one | 11:40 |
ralonsoh | raise orm_exc.NoResultFound("No row was found for one()") | 11:40 |
maciejjozefczyk | ralonsoh++ | 11:41 |
ralonsoh | this is happening because of IPAllocationsGrenade | 11:41 |
ralonsoh | hehehe | 11:41 |
maciejjozefczyk | ralonsoh, yes thats right | 11:41 |
ivve | hi, im troubleshooting a strange issue in neutron l3 (running dvr_snat mode) where two namespaces are promoted to master, i have debug on but can't find anything useful at all. just that the ha.py promotes a second namespace 5 seconds after initial promotion of the "original" | 11:48 |
openstackgerrit | Lucas Alvares Gomes proposed openstack/neutron master: DO NOT REVIEW: [OVN] Use the Chassis_Private table for agents healthcheck https://review.opendev.org/707626 | 11:48 |
ivve | any pointer on where to look for problems, this only happens "sometimes" during creation of stacks with number of machines. obviously this creates problems for instances using the snat as two of them have all the gateways and sessions are able to hop and be split across leading to drops | 11:49 |
ivve | well more or less asymmetrical routing | 11:50 |
ivve | im looking at the ha_vrrp_health_check_interval setting, which is currently set to default. would this identify two masters and handle demotes as well? | 11:51 |
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openstackgerrit | Rodolfo Alonso Hernandez proposed openstack/neutron master: "ping"/"ping6" command support in rootwrap filters https://review.opendev.org/707452 | 11:58 |
openstackgerrit | Rodolfo Alonso Hernandez proposed openstack/neutron master: [OVN] Add OVN functional tests - part 1 https://review.opendev.org/701733 | 11:59 |
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frickler | slaweq: ralonsoh: turns out yesterdays issue is indeed a bug (at least IMO) in the OVS native firewall driver https://bugs.launchpad.net/neutron/+bug/1863091 would be great to hear whether you have seen something like that already | 12:05 |
openstack | Launchpad bug 1863091 in neutron "IPVS setup fails with openvswitch firewall driver, works with iptables_hybrid" [Undecided,New] | 12:05 |
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openstackgerrit | Maciej Józefczyk proposed openstack/neutron master: Centralize traffic when LB and member has FIP https://review.opendev.org/707633 | 12:21 |
TomStappaerts | ralonsoh maciejjozefczyk lucasagomes Thx for the analysis. What should we do? | 12:21 |
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ralonsoh | TomStappaerts, first idea is to overwrite this method in the OVN test class, mocking the ovn notification methods | 12:37 |
ralonsoh | I'm also investigating if it's possible to have this SG info in the port, to avoid the call https://review.opendev.org/#/c/572767/45/neutron/db/securitygroups_db.py@634 | 12:38 |
ralonsoh | this is what is triggering the error in the test case | 12:38 |
ralonsoh | and also having this information in the port without making another read in the DB can speed up the port creation/update | 12:39 |
ralonsoh | (and this is something we need to care about, every new version the API performance decreases a lot) | 12:39 |
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ignaziocassano1 | Hello, on my queens installation I devine a network with more than 10 subnets. When dnsmasq dhcp send static routes with option 121, I got the following error: dnsmasq-dhcp[52165]: cannot send DHCP/BOOTP option 121: no space left in packet | 12:42 |
ignaziocassano1 | In the above case the routeing table related to metadata is not received | 12:43 |
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TomStappaerts | ralonsoh ok let me know what you propose, I do not have complete neutron overview to notice these issues most of the time sadly. | 12:44 |
ignaziocassano1 | Any help , please ? | 12:47 |
ralonsoh | ignaziocassano1, try to reduce the static route list | 12:48 |
ralonsoh | it the dhcp packet size is limited | 12:48 |
openstackgerrit | Darragh O'Reilly proposed openstack/neutron stable/train: ovs agent: signal to plugin if tunnel refresh needed https://review.opendev.org/704173 | 12:49 |
ignaziocassano1 | ralonsoh: I cannot reduce .....it creates a statuc route for every subnet. It depends by the number of subnets. | 12:50 |
ralonsoh | how many subnets do you have? | 12:50 |
ignaziocassano1 | ralonsoh: 18 subnets :-( | 12:51 |
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ignaziocassano1 | ralonsoh: increaseing the number of subnets, I must reduce the hostname length | 12:52 |
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ralonsoh | ignaziocassano1, https://tools.ietf.org/html/rfc3442 | 12:54 |
ralonsoh | yes, this is an option | 12:54 |
ignaziocassano1 | ralonsoh: I am not skilled on network but if I understood well, the dhcp packet size is not enough large for containing a lot of infirmatio. Right? | 12:56 |
ralonsoh | no | 12:56 |
ignaziocassano1 | ralonsoh: what tou suggest to solve, please ? | 12:57 |
ralonsoh | as you said, reduce the hostname sizes | 12:57 |
ralonsoh | you can try it | 12:57 |
ignaziocassano1 | Yes , I tried and i works, but I need do add further subnets :-( | 12:58 |
frickler | IIUC that is a limitation of DHCP, not of neutron. you could drop dhcp and use static addressing/config-drive | 12:58 |
ralonsoh | exactly, this is another option | 12:58 |
ralonsoh | dhcp is not mandatory | 12:59 |
frickler | or maybe increase the MTU to have more space in the dhcp packet? | 12:59 |
ignaziocassano1 | ralonsoh: Is there an option for not using metadata in namespace ? My provider network could reach the metadata agent on internal api | 12:59 |
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ignaziocassano1 | ralonsoh: if the above is possible, option 121 could be avoided | 13:01 |
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ignaziocassano1 | guys: I am using mtu=8000 | 13:04 |
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ignaziocassano1 | sorry mtu=9000 | 13:04 |
ralonsoh | mtu does not define the dhcp packet size | 13:05 |
ralonsoh | https://www.rfc-editor.org/rfc/rfc1531.txt | 13:05 |
frickler | "DHCP clients may negotiate the use of larger DHCP messages through the 'Maximum DHCP message size' option." so maybe having the client do that might help | 13:07 |
ralonsoh | take a look at section 3.4 | 13:07 |
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ralonsoh | exactly | 13:07 |
ignaziocassano1 | Option 57 ? | 13:08 |
frickler | but needing 18 subnets I would also suggest to rethink your addressing scheme. | 13:08 |
ignaziocassano1 | I could try to set option 57....which is the max value ....please ? | 13:09 |
ignaziocassano1 | frickler: unfortunately I cannot decide .....I suggested vxlan but my boss does not hear me | 13:10 |
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openstackgerrit | Merged openstack/neutron master: Add "ncat" rootwrap filter for debug https://review.opendev.org/707368 | 13:53 |
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openstackgerrit | Lajos Katona proposed openstack/networking-bagpipe master: Remove ofctl code from bagpipe https://review.opendev.org/707649 | 14:26 |
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openstackgerrit | Roman Safronov proposed openstack/neutron-tempest-plugin master: Add VRRP failover test https://review.opendev.org/707660 | 14:41 |
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openstackgerrit | Maciej Józefczyk proposed openstack/neutron master: Centralize traffic when LB and member has FIP https://review.opendev.org/707633 | 14:53 |
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openstackgerrit | Lucas Alvares Gomes proposed openstack/neutron master: DO NOT REVIEW: [OVN] Use the Chassis_Private table for agents healthcheck https://review.opendev.org/707626 | 14:57 |
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haleyb | ralonsoh, frickler: i remember this "DHCP packet too large" coming up somewhere else recently, but can't find a bug/patch. the agent should do some rough math and drop some/all of the subnet routes if the response will be too big | 15:00 |
ralonsoh | haleyb, but is the DHCP responsible of this? | 15:00 |
ralonsoh | or should be? | 15:00 |
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slaweq | ralonsoh: bug triage call, are You joining? | 15:04 |
ralonsoh | slaweq, sorry! | 15:05 |
slaweq | ralonsoh: np :) | 15:05 |
haleyb | ralonsoh: we made a change (years ago) to send these routes, and doing so can cause dhcp to not work. i always figured the response was mtu-limited but guess not, so we have to be more conservative in what we send | 15:21 |
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frickler | haleyb: from the rfc that ralonsoh cited, the default size is about 500b, but the client can set an option to request a larger size | 15:28 |
haleyb | frickler: right, i just didn't know if any clients did that, and that would only be known by dnsmasq, not by the neutron code that is creating the conf file | 15:29 |
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frickler | haleyb: how would neutron select which subnets to announce to clients? | 15:34 |
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haleyb | frickler: it would just send none perhaps? the option of dhcp not working is worse, but i don't think the routes are required, it's just a bonus | 15:35 |
frickler | haleyb: well, if there is a router, yes, if it is an isolated network not so much | 15:40 |
frickler | maybe documenting and enforcing a hard limit on the number of subnets with dhcp enabled would make more sense | 15:41 |
frickler | likely number per ip version | 15:42 |
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haleyb | frickler: then we're back at which subnets do we include? | 15:48 |
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frickler | haleyb: either select or limit creating subnets in the first place. not sure how one would handle existing oversized networks, though | 15:56 |
frickler | likely just doing a check on subnet create could work, though | 15:57 |
frickler | or allow deployments to override a sane default config value | 15:57 |
openstackgerrit | Bence Romsics proposed openstack/neutron master: Bump neutron-lib to 2.1.0 https://review.opendev.org/707389 | 16:02 |
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openstackgerrit | Maciej Józefczyk proposed openstack/neutron master: [WIP] Enable qos service plugin in tempest jobs https://review.opendev.org/704833 | 16:09 |
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openstackgerrit | Maciej Józefczyk proposed openstack/neutron master: [WIP] Enable qos service plugin in tempest jobs https://review.opendev.org/704833 | 16:15 |
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openstackgerrit | Rodolfo Alonso Hernandez proposed openstack/neutron master: Set an absolute path in rootwrap filters_path https://review.opendev.org/707697 | 17:11 |
openstackgerrit | Rodolfo Alonso Hernandez proposed openstack/neutron master: [OVN] Add OVN functional tests - part 1 https://review.opendev.org/701733 | 17:15 |
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openstackgerrit | Jens Harbott (frickler) proposed openstack/neutron stable/rocky: Catch OVSFWTagNotFound in update_port_filter https://review.opendev.org/707712 | 19:25 |
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openstackgerrit | Hang Yang proposed openstack/neutron master: Check SG members instead of ports to skip flow update https://review.opendev.org/707248 | 22:38 |
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