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[Dongcan Ye <hellochosen@xxxxxxxxx>]

$ neutron port-show 960ea43e-5644-47f8-ab30-a6cdd6dde664
+-----------------------+---------------------------------------------------------------------------------------+
| Field                 | Value                                                                                 |
+-----------------------+---------------------------------------------------------------------------------------+
| admin_state_up        | True                                                                                  |
| allowed_address_pairs |                                                                                       |
| binding:host_id       | node-A                                                                            |
| binding:profile       | {}                                                                                    |
| binding:vif_details   | {"port_filter": true, "ovs_hybrid_plug": false}                                       |
| binding:vif_type      | ovs                                                                                   |
| binding:vnic_type     | normal                                                                                |
| created_at            | 2016-05-27T01:24:32                                                                   |
| description           |                                                                                       |
| device_id             | a54ffb2d-bbfe-4c4b-85be-5c09140273c2                                                  |
| device_owner          | network:router_ha_interface                                                           |
| dns_name              |                                                                                       |
| extra_dhcp_opts       |                                                                                       |
| fixed_ips             | {"subnet_id": "097af809-cd4b-4801-adf4-26ce04584791", "ip_address": "169.254.192.20"} |
| id                    | 960ea43e-5644-47f8-ab30-a6cdd6dde664                                                  |
| mac_address           | fa:16:3e:c0:6f:24                                                                     |
| name                  | HA port tenant a17b3b9772b74811a3d62ebefd65d3b0                                       |
| network_id            | dc3c02c5-c1c5-4950-83db-939740e73916                                                  |
| port_security_enabled | False                                                                                 |
| security_groups       |                                                                                       |
| status                | ACTIVE                                                                                |
| tenant_id             |                                                                                       |
| updated_at            | 2016-05-27T02:28:02                                                                   |
+-----------------------+---------------------------------------------------------------------------------------+

$ ip netns exec qrouter-a54ffb2d-bbfe-4c4b-85be-5c09140273c2 ping 169.254.192.21
PING 169.254.192.21 (169.254.192.21) 56(84) bytes of data.
>From 169.254.192.20 icmp_seq=1 Destination Host Unreachable
>From 169.254.192.20 icmp_seq=2 Destination Host Unreachable
>From 169.254.192.20 icmp_seq=3 Destination Host Unreachable
>From 169.254.192.20 icmp_seq=4 Destination Host Unreachable
>From 169.254.192.20 icmp_seq=5 Destination Host Unreachable
>From 169.254.192.20 icmp_seq=6 Destination Host Unreachable
>From 169.254.192.20 icmp_seq=7 Destination Host Unreachable
>From 169.254.192.20 icmp_seq=8 Destination Host Unreachable


@Assaf Muller, it seems strange, I do another test in other node, stop l3 agent, create router(both ha and ha+distributed), then start l3 agent, it seems OK, there only one active ha router, and vip address only in  one namespace.

Thanks for your kindly reply, I will do more tests.

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

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https://bugs.launchpad.net/bugs/1586058

Title:
  Online an new neutron l3 agent, the router ha_state is active

Status in neutron:
  Invalid

Bug description:
  When we manually online an new l3 agent, after sync router info from
  Neutron server,  neutron-keepalived-state-change will always write
  master in it's state file and notify other agents, even though there
  still have an active ha router in other node.

  ====== Step to reproduce =======
  1. stop neutron-l3-agent on node-A
  2. create ha and distribute router test_router
  3. we can see l3 agents hosting router info:
  $ neutron l3-agent-list-hosting-router test_router
  +--------------------------------------+------------+----------------+-------+----------+
  | id                                   | host       | admin_state_up | alive | ha_state |
  +--------------------------------------+------------+----------------+-------+----------+
  | 678cc6a6-3b28-462d-9374-4a7fb42193dc | compute1   | True           | :-)   | standby  |
  | de274597-e35b-4ae5-baba-01c26bbed5b9 | compute2   | True           | :-)   | active   |
  | 1c301ec4-9320-44e0-a4e0-a0441fee849a | network    | True           | :-)   | standby  |
  | 4ae490f7-8791-4460-8545-c172af58de8f | network2   | True           | :-)   | standby  |
  +--------------------------------------+------------+----------------+-------+----------+

  4. start neutron-l3-agent on node-A, after sync, we can see there are
  two active ha routers in compute2 and node-A.

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