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Message #87754
[Bug 1952567] [NEW] [ml2][ovs] ports tag are missing and flood on those
Public bug reported:
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.
** Affects: neutron
Importance: High
Assignee: LIU Yulong (dragon889)
Status: In Progress
** Changed in: neutron
Importance: Undecided => High
** Changed in: neutron
Status: New => In Progress
** Changed in: neutron
Assignee: (unassigned) => LIU Yulong (dragon889)
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https://bugs.launchpad.net/bugs/1952567
Title:
[ml2][ovs] ports tag are missing and flood on those
Status in neutron:
In Progress
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.
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