** Project changed: neutron => networking-sfc
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https://bugs.launchpad.net/bugs/1660893
Title:
Neutron SFC port chain delete fails
Status in networking-sfc:
New
Bug description:
I'm experimenting with Neutron SFC. The chain creation happens successfully
whereas the chain deletion doesn't succeed always. For the first couple of
times, I was able to delete the chains successfully however once it fails, it
mostly never succeeds again.
When it failed for the first time, I had to manually delete the port chain
entry from DB. Even though the successive chain creations happen successfully,
the deletion continuously fails. Once I remove the port chain entry from DB,
other things like flow classifier, port pairs, port pair groups can be removed
through CLI.
Environment: Multi-node devstack with 1 controller and 2 computes where VMs
are launched in the same compute.
OS: Ubuntu 16.04
Kernel: 4.4.0-59-generic
OVS: 2.6.1
Devstack and SFC: Newton
All my neutron agents are alive.
Steps to create chain
openstack network create net11
openstack subnet create --subnet-range 11.0.0.0/24 --network net11 sub11
openstack network create net12
openstack subnet create --subnet-range 12.0.0.0/24 --network net12 sub12
openstack router create sfc-router
openstack router add subnet sfc-router sub11
openstack router add subnet sfc-router sub12
openstack port create --network net11 p1
openstack port create --network net12 p2
openstack server create --nic port-id=p1 --nic port-id=p2 --flavor 3
--image vyos sf-vm
sleep 5
openstack port pair create --ingress p1 --egress p2 pp1
openstack port pair group create --port-pair pp1 ppg1
openstack flow classifier create --source-ip-prefix 11.0.0.0/24
--destination-ip-prefix\
12.0.0.0/24 --source-port 1:65535 --destination-port 80:80 --protocol
TCP \
--logical-source-port $(neutron port-list | grep \"11.0.0.1\" | awk
'{print $2}') fc1
openstack port chain create --port-pair-group ppg1 --flow-
classifier fc1 pc1
Steps to delete chain
openstack server delete sf-vm
openstack port chain delete pc1
openstack flow classifier delete fc1
openstack port pair group delete ppg1
openstack port pair delete pp1
openstack port delete p1
openstack port delete p2
openstack router remove subnet sfc-router sub11
openstack router remove subnet sfc-router sub12
openstack subnet delete sub11
openstack subnet delete sub12
openstack router delete sfc-router
openstack network delete net11
openstack network delete net12
Expected Output
Successful completion of step "openstack port chain delete pc1" and other
obvious success messages.
Actual Output
delete_port_chain failed.
Neutron server returns request_ids:
['req-eea26895-dcf5-4c31-a858-4da5ffe40b14']
This is a blocker for me.
Neutron Log: http://paste.openstack.org/show/597125/
Controller OVS agent LOG: http://paste.openstack.org/show/597126/
Compute OVS agent LOG: http://paste.openstack.org/show/597127/
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