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[Bug 1709779] Re: reboot ovs service lose dhcp port in dhcp namespace

 

Hello, Boden:
  I have installed ocata using devstack today, this issue can't reproduce too. So I think my configuration maybe incorrect. I will double check to figure out what's wrong.

Moving it to 'invalid'

** Changed in: neutron
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1709779

Title:
  reboot ovs service lose dhcp port  in dhcp namespace

Status in neutron:
  Invalid

Bug description:
  a. i install ocata  on two host, all agent work well, as below:
  [root@controller openstack]# openstack network agent list
  +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
  | ID                                   | Agent Type         | Host       | Availability Zone | Alive | State | Binary                    |
  +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
  | 1296f653-7e28-47dc-b0c7-73e9fabb695f | Metadata agent     | controller | None              | True  | UP    | neutron-metadata-agent    |
  | 47bd5b59-feb7-47a6-864e-0cf7ed90ab8e | Open vSwitch agent | compute    | None              | True  | UP    | neutron-openvswitch-agent |
  | 9d8f5a9d-2fd4-4c6f-b6d6-1730843738e3 | DHCP agent         | controller | nova              | True  | UP    | neutron-dhcp-agent        |
  | c420da8e-7028-4589-bd2f-9d25756e08f2 | Open vSwitch agent | controller | None              | True  | UP    | neutron-openvswitch-agent |
  | f79bf249-874b-422a-9d21-949786fbf367 | L3 agent           | controller | nova              | True  | UP    | neutron-l3-agent          |
  +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
  [root@controller openstack]# openstack compute service list
  +----+------------------+------------+----------+---------+-------+----------------------------+
  | ID | Binary           | Host       | Zone     | Status  | State | Updated At                 |
  +----+------------------+------------+----------+---------+-------+----------------------------+
  |  1 | nova-consoleauth | controller | internal | enabled | up    | 2017-08-10T05:47:04.000000 |
  |  3 | nova-conductor   | controller | internal | enabled | up    | 2017-08-10T05:47:04.000000 |
  |  7 | nova-scheduler   | controller | internal | enabled | up    | 2017-08-10T05:47:05.000000 |
  | 10 | nova-compute     | controller | nova     | enabled | up    | 2017-08-10T05:47:06.000000 |
  | 11 | nova-compute     | compute    | nova     | enabled | up    | 2017-08-10T05:47:09.000000 |
  +----+------------------+------------+----------+---------+-------+----------------------------+

  
  b. create a tenant with vlan mode, 
  [root@controller openstack]# ip netns
  qdhcp-006b70a9-9c44-40e9-b3a1-3334a472dda6
  [root@controller openstack]# ip netns exec qdhcp-006b70a9-9c44-40e9-b3a1-3334a472dda6 ifconfig
  lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
          inet 127.0.0.1  netmask 255.0.0.0
          inet6 ::1  prefixlen 128  scopeid 0x10<host>
          loop  txqueuelen 1  (Local Loopback)
          RX packets 0  bytes 0 (0.0 B)
          RX errors 0  dropped 0  overruns 0  frame 0
          TX packets 0  bytes 0 (0.0 B)
          TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

  tapbfe934a3-9d: flags=323<UP,BROADCAST,RUNNING,PROMISC>  mtu 1500
          inet 1.2.3.4  netmask 255.255.255.0  broadcast 1.2.3.255
          inet6 fe80::f816:3eff:feed:ea19  prefixlen 64  scopeid 0x20<link>
          ether fa:16:3e:ed:ea:19  txqueuelen 1000  (Ethernet)
          RX packets 0  bytes 0 (0.0 B)
          RX errors 0  dropped 0  overruns 0  frame 0
          TX packets 5  bytes 438 (438.0 B)
          TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

  3. when reboot ovs sevice, port tapbfe934a3-9d in dhcp namespace will be lose
  [root@controller openstack]#  systemctl restart openvswitch
  [root@controller openstack]# ip netns exec qdhcp-006b70a9-9c44-40e9-b3a1-3334a472dda6 ifconfig -a
  lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
          inet 127.0.0.1  netmask 255.0.0.0
          inet6 ::1  prefixlen 128  scopeid 0x10<host>
          loop  txqueuelen 1  (Local Loopback)
          RX packets 0  bytes 0 (0.0 B)
          RX errors 0  dropped 0  overruns 0  frame 0
          TX packets 0  bytes 0 (0.0 B)
          TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

  4. when reboot dhcp agent, that port appear again
  [root@controller openstack]# systemctl restart neutron-dhcp-agent.service
  [root@controller openstack]# ip netns exec qdhcp-006b70a9-9c44-40e9-b3a1-3334a472dda6 ifconfig -a
  lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
          inet 127.0.0.1  netmask 255.0.0.0
          inet6 ::1  prefixlen 128  scopeid 0x10<host>
          loop  txqueuelen 1  (Local Loopback)
          RX packets 0  bytes 0 (0.0 B)
          RX errors 0  dropped 0  overruns 0  frame 0
          TX packets 0  bytes 0 (0.0 B)
          TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

  tapbfe934a3-9d: flags=323<UP,BROADCAST,RUNNING,PROMISC>  mtu 1500
          inet 1.2.3.4  netmask 255.255.255.0  broadcast 1.2.3.255
          inet6 fe80::f816:3eff:feed:ea19  prefixlen 64  scopeid 0x20<link>
          ether fa:16:3e:ed:ea:19  txqueuelen 1000  (Ethernet)
          RX packets 0  bytes 0 (0.0 B)
          RX errors 0  dropped 0  overruns 0  frame 0
          TX packets 5  bytes 438 (438.0 B)
          TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

  
  as describe above, i want to know weather this is normal

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