[ml2][ovs] ports tag are missing and flood on those
Bug #1952567 reported by
LIU Yulong
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
neutron |
Fix Released
|
High
|
LIU Yulong |
Bug Description
During some ml2 ovs agent port processing performance test, we noticed
that some ports are missing tag before it really done processing. While
ovs treats those ports without tag as trunk port, so some packets will
be flooded to it. In large scale cloud, if too many port added to the
bridge, the ovs-vswitchd will consume a huge amount of CPU cores if
ports are not bound in a short time.
Another potential problem is openflow security group may not get processed during the first created event.
Upstream test failures of waiting too long time to ping some cases, may be related to these problems.
Changed in neutron: | |
importance: | Undecided → High |
status: | New → In Progress |
assignee: | nobody → LIU Yulong (dragon889) |
tags: | added: ovs |
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Fix proposed to branch: master /review. opendev. org/c/openstack /neutron/ +/819567
Review: https:/