yahoo-eng-team team mailing list archive

[Russell Bryant <1647421@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

OVN has its own native support for DHCP, so the Neutron DHCP agent is
not in use.  When networks get created, we see warnings in the log about
Neutron still trying to schedule DHCP agents.

We should be able to disable this code path completely when the DHCP
agent is intentionally not in use.

2016-12-05 16:44:12.252 23149 WARNING neutron.scheduler.dhcp_agent_scheduler [req-038bedd2-fa56-4cfb-af68-8a36f39a2e9c 560fda6bf041441581ea756be353433c 21888697d4914989af439a25ebda0b76 - - -] No more DHCP agents
2016-12-05 16:44:12.253 23149 WARNING neutron.api.rpc.agentnotifiers.dhcp_rpc_agent_api [req-038bedd2-fa56-4cfb-af68-8a36f39a2e9c 560fda6bf041441581ea756be353433c 21888697d4914989af439a25ebda0b76 - - -] Unable to schedule network 45d29a60-a672-429f-b7d7-551ee985c8ca: no agents available; will retry on subsequent port and subnet creation events.

** Affects: networking-ovn
     Importance: Medium
         Status: Confirmed

** Affects: neutron
     Importance: Undecided
         Status: New

** Changed in: networking-ovn
       Status: New => Confirmed

** Changed in: networking-ovn
   Importance: Undecided => Medium

** Description changed:

  OVN has its own native support for DHCP, so the Neutron DHCP agent is
  not in use.  When networks get created, we see warnings in the log about
  Neutron still trying to schedule DHCP agents.
  
  We should be able to disable this code path completely when the DHCP
  agent is intentionally not in use.
+ 
+ 2016-12-05 16:44:12.252 23149 WARNING neutron.scheduler.dhcp_agent_scheduler [req-038bedd2-fa56-4cfb-af68-8a36f39a2e9c 560fda6bf041441581ea756be353433c 21888697d4914989af439a25ebda0b76 - - -] No more DHCP agents
+ 2016-12-05 16:44:12.253 23149 WARNING neutron.api.rpc.agentnotifiers.dhcp_rpc_agent_api [req-038bedd2-fa56-4cfb-af68-8a36f39a2e9c 560fda6bf041441581ea756be353433c 21888697d4914989af439a25ebda0b76 - - -] Unable to schedule network 45d29a60-a672-429f-b7d7-551ee985c8ca: no agents available; will retry on subsequent port and subnet creation events.

** Also affects: neutron
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1647421

Title:
  Neutron attempts to schedule DHCP agents even when intentionally not
  in use

Status in networking-ovn:
  Confirmed
Status in neutron:
  New

Bug description:
  OVN has its own native support for DHCP, so the Neutron DHCP agent is
  not in use.  When networks get created, we see warnings in the log
  about Neutron still trying to schedule DHCP agents.

  We should be able to disable this code path completely when the DHCP
  agent is intentionally not in use.

  2016-12-05 16:44:12.252 23149 WARNING neutron.scheduler.dhcp_agent_scheduler [req-038bedd2-fa56-4cfb-af68-8a36f39a2e9c 560fda6bf041441581ea756be353433c 21888697d4914989af439a25ebda0b76 - - -] No more DHCP agents
  2016-12-05 16:44:12.253 23149 WARNING neutron.api.rpc.agentnotifiers.dhcp_rpc_agent_api [req-038bedd2-fa56-4cfb-af68-8a36f39a2e9c 560fda6bf041441581ea756be353433c 21888697d4914989af439a25ebda0b76 - - -] Unable to schedule network 45d29a60-a672-429f-b7d7-551ee985c8ca: no agents available; will retry on subsequent port and subnet creation events.

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