← Back to team overview

yahoo-eng-team team mailing list archive

  1. yahoo-eng-team team
  2. Mailing list archive
  3. Message #71963

[Bug 1758952] [NEW] DHCP agent fails to configure routed networks due to failure generating subnet options

  Thread Previous • Date Previous • • Thread Next 
Public bug reported:

In a routed networks environment, after the merge of
https://review.openstack.org/#/c/468744, the dhcp agent attempts to
generate subnet options for both local and non local subnets. If one of
the non-local subnets is classified as isolated from the point of view
of the metadata service, the following traceback occurs:

Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent [-] Unable to enable dhcp for 40dcd8c6-e4a1-4510-ac62-f37c11e65a5a.: KeyError: u'2cbde018-1c03-40f8-9d67-90a03c7ebd37'
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent Traceback (most recent call last):
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 144, in call_driver
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     getattr(driver, action)(**action_kwargs)
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 219, in enable
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     self.spawn_process()
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 446, in spawn_process
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     self._spawn_or_reload_process(reload_with_HUP=False)
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 455, in _spawn_or_reload_process
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     self._output_config_files()
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 499, in _output_config_files
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     self._output_opts_file()
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 872, in _output_opts_file
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     options, subnet_index_map = self._generate_opts_per_subnet()
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 933, in _generate_opts_per_subnet
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     subnet_dhcp_ip and subnet.ip_version == 4):
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent KeyError: u'2cbde018-1c03-40f8-9d67-90a03c7ebd37'
Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent 

This traceback is due to the fact that the non-local subnet in question
has no interface in the DHCP agent namespace, so it is not found when:

subnet_dhcp_ip = subnet_to_interface_ip[subnet.id]

is executed

** Affects: neutron
     Importance: Medium
     Assignee: Miguel Lavalle (minsel)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Miguel Lavalle (minsel)

** Changed in: neutron
   Importance: Undecided => Medium

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1758952

Title:
  DHCP agent fails to configure routed networks due to failure
  generating subnet options

Status in neutron:
  New

Bug description:
  In a routed networks environment, after the merge of
  https://review.openstack.org/#/c/468744, the dhcp agent attempts to
  generate subnet options for both local and non local subnets. If one
  of the non-local subnets is classified as isolated from the point of
  view of the metadata service, the following traceback occurs:

  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent [-] Unable to enable dhcp for 40dcd8c6-e4a1-4510-ac62-f37c11e65a5a.: KeyError: u'2cbde018-1c03-40f8-9d67-90a03c7ebd37'
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent Traceback (most recent call last):
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 144, in call_driver
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     getattr(driver, action)(**action_kwargs)
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 219, in enable
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     self.spawn_process()
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 446, in spawn_process
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     self._spawn_or_reload_process(reload_with_HUP=False)
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 455, in _spawn_or_reload_process
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     self._output_config_files()
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 499, in _output_config_files
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     self._output_opts_file()
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 872, in _output_opts_file
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     options, subnet_index_map = self._generate_opts_per_subnet()
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent   File "/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 933, in _generate_opts_per_subnet
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent     subnet_dhcp_ip and subnet.ip_version == 4):
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent KeyError: u'2cbde018-1c03-40f8-9d67-90a03c7ebd37'
  Mar 26 15:21:41 compute2 neutron-dhcp-agent[31181]: ERROR neutron.agent.dhcp.agent 

  This traceback is due to the fact that the non-local subnet in
  question has no interface in the DHCP agent namespace, so it is not
  found when:

  subnet_dhcp_ip = subnet_to_interface_ip[subnet.id]

  is executed

To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1758952/+subscriptions

Follow ups

  Thread Previous • Date Previous • • Thread Next