Public bug reported:
When OVS restart and executed here
(https://github.com/openstack/neutron/blob/80dfbb03715ff3b8ee06f698df4bfa95d285b0e5/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py#L2579),
some flows will be missing in the br-int, as follows:
* table=60, n_packets=230017, n_bytes=25281846,
priority=4,in_port="int-br-floating" actions=resubmit(,61)
* table=60, n_packets=23697, n_bytes=1230474, priority=4,in_port="patch-tun"
actions=resubmit(,61)
* table=61, n_packets=2713148, n_bytes=800997718, priority=0
actions=resubmit(,62)
These flows are initialized in the function
install_ingress_direct_goto_flows(), and this function is only called in
the constructor of the class OVSNeutronAgent. So when ovs_status equals
constants.OVS_RESTARTED and flows need to be regenerated, but this
function is not called and these flows are not regenerated.
In order to solve this problem, we need to additionally restart ovs-
neutron-agent to call install_ingress_direct_goto_flows() to regenerate
these flows.
** Affects: neutron
Importance: Undecided
Status: New
** Tags: ovs
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https://bugs.launchpad.net/bugs/1920700
Title:
When OVS restart, some flows will be missing in the br-int
Status in neutron:
New
Bug description:
When OVS restart and executed here
(https://github.com/openstack/neutron/blob/80dfbb03715ff3b8ee06f698df4bfa95d285b0e5/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py#L2579),
some flows will be missing in the br-int, as follows:
* table=60, n_packets=230017, n_bytes=25281846,
priority=4,in_port="int-br-floating" actions=resubmit(,61)
* table=60, n_packets=23697, n_bytes=1230474, priority=4,in_port="patch-tun"
actions=resubmit(,61)
* table=61, n_packets=2713148, n_bytes=800997718, priority=0
actions=resubmit(,62)
These flows are initialized in the function
install_ingress_direct_goto_flows(), and this function is only called
in the constructor of the class OVSNeutronAgent. So when ovs_status
equals constants.OVS_RESTARTED and flows need to be regenerated, but
this function is not called and these flows are not regenerated.
In order to solve this problem, we need to additionally restart ovs-
neutron-agent to call install_ingress_direct_goto_flows() to
regenerate these flows.
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1920700/+subscriptions
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