[Yahoo-eng-team] [Bug 1498370] [NEW] DHCP agent: interface unplug leads to exeception

Gary Kotton Tue, 22 Sep 2015 01:56:44 -0700

Public bug reported:

2015-09-22 01:23:42.612 ERROR neutron.agent.dhcp.agent [-] Unable to disable 
dhcp for c543db4d-e077-488f-b58c-5805f63f86b6.
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent Traceback (most recent 
call last):
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 115, in call_driver
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     getattr(driver, 
action)(**action_kwargs)
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 221, in disable
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     
self._destroy_namespace_and_port()
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 226, in 
_destroy_namespace_and_port
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     
self.device_manager.destroy(self.network, self.interface_name)
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 1223, in destroy
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     
self.driver.unplug(device_name, namespace=network.namespace)
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/interface.py", line 358, in unplug
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     tap_name = 
self._get_tap_name(device_name, prefix)
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/interface.py", line 299, in 
_get_tap_name
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     dev_name = 
dev_name.replace(prefix or self.DEV_NAME_PREFIX,
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent AttributeError: 
'NoneType' object has no attribute 'replace'
2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent 
2015-09-22 01:23:42.616 INFO neutron.agent.dhcp.agent [-] Synchronizing state 
complete


The reason is the device is None

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1498370

Title:
  DHCP agent: interface unplug leads to exeception

Status in neutron:
  New

Bug description:
  2015-09-22 01:23:42.612 ERROR neutron.agent.dhcp.agent [-] Unable to disable 
dhcp for c543db4d-e077-488f-b58c-5805f63f86b6.
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent Traceback (most recent 
call last):
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 115, in call_driver
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     getattr(driver, 
action)(**action_kwargs)
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 221, in disable
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     
self._destroy_namespace_and_port()
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 226, in 
_destroy_namespace_and_port
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     
self.device_manager.destroy(self.network, self.interface_name)
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 1223, in destroy
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     
self.driver.unplug(device_name, namespace=network.namespace)
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/interface.py", line 358, in unplug
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     tap_name = 
self._get_tap_name(device_name, prefix)
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent   File 
"/opt/stack/neutron/neutron/agent/linux/interface.py", line 299, in 
_get_tap_name
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent     dev_name = 
dev_name.replace(prefix or self.DEV_NAME_PREFIX,
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent AttributeError: 
'NoneType' object has no attribute 'replace'
  2015-09-22 01:23:42.612 TRACE neutron.agent.dhcp.agent 
  2015-09-22 01:23:42.616 INFO neutron.agent.dhcp.agent [-] Synchronizing state 
complete

  The reason is the device is None

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[Yahoo-eng-team] [Bug 1498370] [NEW] DHCP agent: interface unplug leads to exeception

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