yahoo-eng-team team mailing list archive

Thread
Date

[Bug 2086776] [NEW] [RFE] Configurable Agent Termination on OVS Restart

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Serj <2086776@xxxxxxxxxxxxxxxxxx>
Date: Wed, 06 Nov 2024 12:09:55 -0000
Reply-to: Bug 2086776 <2086776@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx

Public bug reported:

Add a configurable (opt-in) feature to terminate the Neutron agent when
Open vSwitch restarts, allowing for clean recovery through service
manager restart mechanisms.

When Open vSwitch (OVS) restarts, the current recovery process for
network services can be unreliable, leading to networking issues that
require manual intervention, in general this intervention is force
restart of agent.

Proposed change is to add two (2) new configuration options:
  - OVS_TERMINATE_ON_RESTART (type: boolean, default: False)
  - OVS_RESTART_EXIT_CODE (type: integer, optional)

and extend `ovs_const.OVS_RESTARTED` handling logic
(self.int_br.check_canary_table()) to trigger
`sys.exit($OVS_RESTART_EXIT_CODE)` when OVS_TERMINATE_ON_RESTART config
option is enabled.

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: rfe

** Tags added: rfe

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/2086776

Title:
  [RFE] Configurable Agent Termination on OVS Restart

Status in neutron:
  New

Bug description:
  Add a configurable (opt-in) feature to terminate the Neutron agent
  when Open vSwitch restarts, allowing for clean recovery through
  service manager restart mechanisms.

  When Open vSwitch (OVS) restarts, the current recovery process for
  network services can be unreliable, leading to networking issues that
  require manual intervention, in general this intervention is force
  restart of agent.

  Proposed change is to add two (2) new configuration options:
    - OVS_TERMINATE_ON_RESTART (type: boolean, default: False)
    - OVS_RESTART_EXIT_CODE (type: integer, optional)

  and extend `ovs_const.OVS_RESTARTED` handling logic
  (self.int_br.check_canary_table()) to trigger
  `sys.exit($OVS_RESTART_EXIT_CODE)` when OVS_TERMINATE_ON_RESTART
  config option is enabled.

To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/2086776/+subscriptions