openstack/neutron
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OpenStack Networking (Neutron)
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Daniel Alvarez Sanchez 36ba1cc319 [ovn][metadata] Remove metadata readiness mechanism 
Prior to this patch, the metadata agent was writing into SB
database when a network had been provisioned with metadata
on a particular chassis.

Then, neutron-server would wait for that event to happen with
a 15s timeout before sending the vif-plugged event to Nova.

By removing this mechanism:

1) We'll save writes to OVN SB database which, in highly loaded
systems and at scale reduces significantly the load on ovsdb-server.

2) Ignoring healthchecks (that still requires write to the SB DB),
we can make OVN metadata agent to connect to slave instances when
using active-backup OVN databases since writes are not needed.

3) There's a chance that the VM boots very fast and requests
metadata before the service is ready but since the timeout was
15 seconds, we can safely rely on the the cloud-init retries.

Signed-off-by: Daniel Alvarez Sanchez <dalvarez@redhat.com>
Change-Id: Ia6cd7a9a3b9662a9a8ce106e01a93c357c255956
2021-06-03 16:09:31 +00:00
api-ref Fix some typos 2016-06-28 22:46:19 +02:00
devstack [OVN] security group logging support (2 of 2) 2021-03-02 10:48:23 -05:00
doc [ovn][metadata] Remove metadata readiness mechanism 2021-06-03 16:09:31 +00:00
etc Adding placement auth options to oslo.config entry_points 2021-05-10 09:00:57 -04:00
neutron [ovn][metadata] Remove metadata readiness mechanism 2021-06-03 16:09:31 +00:00
playbooks Add periodic jobs to test "nftables" binaries 2021-04-12 09:48:11 +00:00
rally-jobs [ci] Fix several rally task arguments 2020-05-06 14:56:27 +03:00
releasenotes Deprecate [designate] admin_* parameters 2021-05-11 12:08:42 +09:00
roles Fix "nftables" ansible role 2021-04-27 15:56:43 +00:00
tools Remove call to "fixup_ubuntu" 2021-05-18 14:13:31 +00:00
vagrant/ovn Fix local neutron folder path in ovn/sparse/Vagrantfile 2020-11-03 17:02:34 +01:00
zuul.d Switch neutron-rally-task job to ML2/OVS and skip "test_models_sync" 2021-06-02 17:19:54 +00:00
.coveragerc Cleanup coverage configuration 2016-10-17 17:06:19 +05:30
.gitignore Add etc/neutron/*.sample files to be ignored by git 2019-12-12 12:38:24 +01:00
.gitreview OpenDev Migration Patch 2019-04-19 19:38:27 +00:00
.mailmap Add mailmap entry 2014-05-16 13:40:04 -04:00
.pylintrc Remove "six" library 2020-07-28 16:55:52 +00:00
.stestr.conf Fix post gate hook to accommodate for new os-testr 2017-09-12 14:20:12 -06:00
bindep.txt include python36-devel in bindep, for tests 2020-10-03 21:58:20 +10:00
CONTRIBUTING.rst [Community goal] Add contributor and PTL guide 2020-03-03 04:43:26 +01:00
HACKING.rst Remove "six" library 2020-07-28 16:55:52 +00:00
LICENSE Adding Apache Version 2.0 license file. This is the official license agreement under which Quantum code is available to 2011-08-08 12:31:04 -07:00
lower-constraints.txt Merge "Improve "objects.db.api.count" method" 2021-04-29 17:31:15 +00:00
plugin.spec Add OVN migration OSP 16.2 option 2021-01-24 17:18:55 +02:00
README.rst Start README.rst with a better title 2019-11-19 17:42:57 +01:00
requirements.txt Merge "Improve "objects.db.api.count" method" 2021-04-29 17:31:15 +00:00
setup.cfg setup.cfg: Replace dashes with underscores 2021-05-12 18:23:20 +08:00
setup.py Updated from global requirements 2017-03-04 11:19:58 +00:00
test-requirements.txt Follow-up: Move linters dependencies to tox.ini 2021-01-07 04:26:07 +09:00
TESTING.rst [Docs] Guide about running and debugging tempest tests 2021-01-07 21:36:42 +01:00
tox.ini Change minversion of tox to 3.18.0 2021-05-21 08:06:40 +00:00

README.rst

OpenStack Neutron

image

Neutron is an OpenStack project to provide "network connectivity as a service" between interface devices (e.g., vNICs) managed by other OpenStack services (e.g., Nova).

To learn more about neutron:

Get in touch via email. Use [Neutron] in your subject.

To learn how to contribute, please read the CONTRIBUTING.rst file.