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Message #79007
[Bug 1821203] Re: DVR: When a subnet is removed from a router the qrouter namespaces aren't removed from the compute nodes
[Expired for neutron because there has been no activity for 60 days.]
** Changed in: neutron
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1821203
Title:
DVR: When a subnet is removed from a router the qrouter namespaces
aren't removed from the compute nodes
Status in neutron:
Expired
Bug description:
[stack@undercloud-0 ~]$ cat /etc/rhosp-release
Red Hat OpenStack Platform release 14.0.1 RC (Rocky)
[stack@undercloud-0 ~]$ yum info openstack-neutron
Loaded plugins: search-disabled-repos
Available Packages
Name : openstack-neutron
Arch : noarch
Epoch : 1
Version : 13.0.3
Release : 0.20190119134915.886782c.el7ost
Size : 28 k
Repo : rhelosp-14.0-puddle/x86_64
Summary : OpenStack Networking Service
URL : http://launchpad.net/neutron/
License : ASL 2.0
Description :
: Neutron is a virtual network service for Openstack. Just like
: OpenStack Nova provides an API to dynamically request and configure
: virtual servers, Neutron provides an API to dynamically request and
: configure virtual networks. These networks connect "interfaces" from
: other OpenStack services (e.g., virtual NICs from Nova VMs). The
: Neutron API supports extensions to provide advanced network
: capabilities (e.g., QoS, ACLs, network monitoring, etc.)
[stack@undercloud-0 ~]$ yum list | grep neutron
puppet-neutron.noarch 13.3.1-0.20181013115834.el7ost
python2-neutron-lib.noarch 1.18.0-0.20180816094046.67865c7.el7ost
python2-neutronclient.noarch 6.9.1-0.20180925041810.7eba94e.el7ost
openstack-neutron.noarch 1:13.0.3-0.20190119134915.886782c.el7ost
openstack-neutron-bigswitch-agent.noarch
openstack-neutron-bigswitch-lldp.noarch
openstack-neutron-common.noarch 1:13.0.3-0.20190119134915.886782c.el7ost
openstack-neutron-fwaas.noarch 1:13.0.2-0.20190123183836.90951a5.el7ost
openstack-neutron-l2gw-agent.noarch
openstack-neutron-lbaas.noarch 1:13.0.1-0.20181017150329.1353bad.el7ost
openstack-neutron-lbaas-ui.noarch
openstack-neutron-linuxbridge.noarch
openstack-neutron-macvtap-agent.noarch
openstack-neutron-metering-agent.noarch
openstack-neutron-ml2.noarch 1:13.0.3-0.20190119134915.886782c.el7ost
openstack-neutron-openvswitch.noarch
openstack-neutron-rpc-server.noarch
openstack-neutron-sriov-nic-agent.noarch
python-neutron.noarch 1:13.0.3-0.20190119134915.886782c.el7ost
python-neutron-fwaas.noarch 1:13.0.2-0.20190123183836.90951a5.el7ost
python-neutron-fwaas-tests.noarch
python-neutron-lbaas.noarch 1:13.0.1-0.20181017150329.1353bad.el7ost
python-neutron-lbaas-tests.noarch
python2-ironic-neutron-agent.noarch
python2-neutron-lib-tests.noarch 1.18.0-0.20180816094046.67865c7.el7ost
python2-neutron-tests-tempest.noarch
Subnets are deleted from the routers:
51 openstack router remove subnet router 8646bed0-7dfd-43a3-bdb5-ab7368cbbbdb
54 openstack router remove subnet router2 dd8f26ec-b98a-4fe3-8d36-ee54b117dbca
(overcloud) [stack@undercloud-0 ~]$ openstack router show router
+-------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+-------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | nova |
| created_at | 2019-03-20T09:15:21Z |
| description | |
| distributed | True |
| external_gateway_info | {"network_id": "4eecbefb-7d7a-4210-836e-3b2b3de215db", "enable_snat": true, "external_fixed_ips": [{"subnet_id": "6c9c958d-caf3-4154-b266-6df78c9bd4df", "ip_address": "10.0.0.223"}]} |
| flavor_id | None |
| ha | False |
| id | 15e60f7b-1f53-4688-84ec-0a3b8747cb9a |
| interfaces_info | [] |
| name | router |
| project_id | 908c484257cf4e8cb09d170caa0cea06 |
| revision_number | 18 |
| routes | |
| status | ACTIVE |
| tags | |
| updated_at | 2019-03-21T15:15:45Z |
+-------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
(overcloud) [stack@undercloud-0 ~]$ openstack router show router2
+-------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+-------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | nova |
| created_at | 2019-03-20T09:15:27Z |
| description | |
| distributed | True |
| external_gateway_info | {"network_id": "4eecbefb-7d7a-4210-836e-3b2b3de215db", "enable_snat": true, "external_fixed_ips": [{"subnet_id": "6c9c958d-caf3-4154-b266-6df78c9bd4df", "ip_address": "10.0.0.214"}]} |
| flavor_id | None |
| ha | False |
| id | 6d303551-abc1-483e-9a12-ffaf7240fb2e |
| interfaces_info | [] |
| name | router2 |
| project_id | 908c484257cf4e8cb09d170caa0cea06 |
| revision_number | 10 |
| routes | |
| status | ACTIVE |
| tags | |
| updated_at | 2019-03-21T15:33:54Z |
+-------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
But qrouter namespaces aren't deleted in the computes:
[root@compute-1 heat-admin]# ip netns
qrouter-6d303551-abc1-483e-9a12-ffaf7240fb2e (id: 2)
fip-4eecbefb-7d7a-4210-836e-3b2b3de215db (id: 1)
qrouter-15e60f7b-1f53-4688-84ec-0a3b8747cb9a (id: 0)
[root@compute-1 heat-admin]# ip netns exec qrouter-6d303551-abc1-483e-9a12-ffaf7240fb2e ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: rfp-6d303551-a@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 5a:92:68:df:f0:23 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 169.254.109.46/31 scope global rfp-6d303551-a
valid_lft forever preferred_lft forever
inet6 fe80::5892:68ff:fedf:f023/64 scope link
valid_lft forever preferred_lft forever
19: qr-cf638cc8-a6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether fa:16:3e:2c:af:c1 brd ff:ff:ff:ff:ff:ff
inet 10.0.3.1/24 brd 10.0.3.255 scope global qr-cf638cc8-a6
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:fe2c:afc1/64 scope link
valid_lft forever preferred_lft forever
[root@compute-1 heat-admin]# ip netns exec qrouter-15e60f7b-1f53-4688-84ec-0a3b8747cb9a ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: rfp-15e60f7b-1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether d6:9e:2b:3f:f1:c4 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 169.254.106.114/31 scope global rfp-15e60f7b-1
valid_lft forever preferred_lft forever
inet6 fe80::d49e:2bff:fe3f:f1c4/64 scope link
valid_lft forever preferred_lft forever
13: qr-db00fd0d-28: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether fa:16:3e:cb:1e:f0 brd ff:ff:ff:ff:ff:ff
inet 10.0.3.1/24 brd 10.0.3.255 scope global qr-db00fd0d-28
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:fecb:1ef0/64 scope link
valid_lft forever preferred_lft forever
[root@compute-2 heat-admin]# ip netns
qrouter-15e60f7b-1f53-4688-84ec-0a3b8747cb9a (id: 0)
fip-4eecbefb-7d7a-4210-836e-3b2b3de215db (id: 1)
[root@compute-2 heat-admin]# ip netns exec qrouter-15e60f7b-1f53-4688-84ec-0a3b8747cb9a ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: rfp-15e60f7b-1@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 4a:e2:e3:cd:66:44 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 169.254.95.212/31 scope global rfp-15e60f7b-1
valid_lft forever preferred_lft forever
inet6 fe80::48e2:e3ff:fecd:6644/64 scope link
valid_lft forever preferred_lft forever
33: qr-00a27ff9-15: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether fa:16:3e:ae:76:ac brd ff:ff:ff:ff:ff:ff
inet 10.1.0.1/24 brd 10.1.0.255 scope global qr-00a27ff9-15
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:feae:76ac/64 scope link
valid_lft forever preferred_lft forever
Similar behavior in controllers:
(overcloud) [stack@undercloud-0 ~]$ openstack router show guirouter
+-------------------------+--------------------------------------+
| Field | Value |
+-------------------------+--------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | nova |
| created_at | 2019-03-21T10:26:42Z |
| description | |
| distributed | True |
| external_gateway_info | None |
| flavor_id | None |
| ha | False |
| id | 1c862e3a-ccca-4cae-9893-7d6028400eae |
| interfaces_info | [] |
| name | guirouter |
| project_id | 908c484257cf4e8cb09d170caa0cea06 |
| revision_number | 6 |
| routes | |
| status | ACTIVE |
| tags | |
| updated_at | 2019-03-21T16:00:16Z |
+-------------------------+--------------------------------------+
Deleted even esternal gateway:
[root@controller-1 heat-admin]# ip netns exec qrouter-1c862e3a-ccca-4cae-9893-7d6028400eae ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
[root@controller-1 heat-admin]#
When the qrouters are deleted the qrouters are deleted.
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References
