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[Bug 1977629] [NEW] [ovn]agent's heartbeat time is error

 

Public bug reported:

when we show an agent, we can check agent's alive and heartbeat time. but now agent's alive is False, 
it's last_heart_at close to the current time, and each show will refresh the last_heart_at.

The code[1] shows that the heartbeat time returns the current time, we
should return to the real update time


[1] https://opendev.org/openstack/neutron/src/commit/d253b9fd08b969ebab09a5624df127a4bf1bfb1f/neutron/plugins/ml2/drivers/ovn/agent/neutron_agent.py#L85

stack@openstack:~$ openstack network agent show d02fc630-4ac8-466f-9795-38e8177cfc55
+-------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field             | Value                                                                                                                                                                                    |
+-------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up    | UP                                                                                                                                                                                       |
| agent_type        | OVN Controller Gateway agent                                                                                                                                                             |
| alive             | XXX                                                                                                                                                                                      |
| availability_zone |                                                                                                                                                                                          |
| binary            | ovn-controller                                                                                                                                                                           |
| configuration     | {'chassis_name': 'd02fc630-4ac8-466f-9795-38e8177cfc55', 'bridge-mappings': 'public:br-ex'}                                                                                              |
| created_at        | None                                                                                                                                                                                     |
| description       |                                                                                                                                                                                          |
| ha_state          | None                                                                                                                                                                                     |
| host              | openstack                                                                                                                                                                                |
| id                | d02fc630-4ac8-466f-9795-38e8177cfc55                                                                                                                                                     |
| last_heartbeat_at | 2022-06-04 01:59:27.926511                                                                                                                                                               |
| location          | Munch({'cloud': '', 'region_name': 'RegionOne', 'zone': '', 'project': Munch({'id': '40e85036922248828c47cededb23036b', 'name': 'admin', 'domain_id': 'default', 'domain_name': None})}) |
| name              | None                                                                                                                                                                                     |
| resources_synced  | None                                                                                                                                                                                     |
| started_at        | None                                                                                                                                                                                     |
| topic             | n/a                                                                                                                                                                                      |
+-------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

** Affects: neutron
     Importance: Undecided
     Assignee: ZhouHeng (zhouhenglc)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => ZhouHeng (zhouhenglc)

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https://bugs.launchpad.net/bugs/1977629

Title:
  [ovn]agent's heartbeat time is error

Status in neutron:
  New

Bug description:
  when we show an agent, we can check agent's alive and heartbeat time. but now agent's alive is False, 
  it's last_heart_at close to the current time, and each show will refresh the last_heart_at.

  The code[1] shows that the heartbeat time returns the current time, we
  should return to the real update time

  
  [1] https://opendev.org/openstack/neutron/src/commit/d253b9fd08b969ebab09a5624df127a4bf1bfb1f/neutron/plugins/ml2/drivers/ovn/agent/neutron_agent.py#L85

  stack@openstack:~$ openstack network agent show d02fc630-4ac8-466f-9795-38e8177cfc55
  +-------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  | Field             | Value                                                                                                                                                                                    |
  +-------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  | admin_state_up    | UP                                                                                                                                                                                       |
  | agent_type        | OVN Controller Gateway agent                                                                                                                                                             |
  | alive             | XXX                                                                                                                                                                                      |
  | availability_zone |                                                                                                                                                                                          |
  | binary            | ovn-controller                                                                                                                                                                           |
  | configuration     | {'chassis_name': 'd02fc630-4ac8-466f-9795-38e8177cfc55', 'bridge-mappings': 'public:br-ex'}                                                                                              |
  | created_at        | None                                                                                                                                                                                     |
  | description       |                                                                                                                                                                                          |
  | ha_state          | None                                                                                                                                                                                     |
  | host              | openstack                                                                                                                                                                                |
  | id                | d02fc630-4ac8-466f-9795-38e8177cfc55                                                                                                                                                     |
  | last_heartbeat_at | 2022-06-04 01:59:27.926511                                                                                                                                                               |
  | location          | Munch({'cloud': '', 'region_name': 'RegionOne', 'zone': '', 'project': Munch({'id': '40e85036922248828c47cededb23036b', 'name': 'admin', 'domain_id': 'default', 'domain_name': None})}) |
  | name              | None                                                                                                                                                                                     |
  | resources_synced  | None                                                                                                                                                                                     |
  | started_at        | None                                                                                                                                                                                     |
  | topic             | n/a                                                                                                                                                                                      |
  +-------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

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