[Bug 1498370] Re: [SRU] DHCP agent: interface unplug leads to exception
Martin Pitt
martin.pitt at ubuntu.com
Fri Nov 13 11:00:16 UTC 2015
trusty has 2014.1.5-0ubuntu, this patch is against some 2015 "trusty-
kilo" which is not Ubuntu. Is this actually an issue in trusty? If so,
please adjust the patch and set back to new, otherwise invalidate the
trusty task.
Unsubscribing sponsors, as there is nothing to do here.
** Changed in: neutron (Ubuntu Trusty)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1498370
Title:
[SRU] DHCP agent: interface unplug leads to exception
Status in neutron:
Fix Released
Status in neutron package in Ubuntu:
Fix Released
Status in neutron source package in Trusty:
Incomplete
Status in neutron source package in Vivid:
Won't Fix
Status in neutron source package in Wily:
Fix Released
Status in neutron source package in Xenial:
Fix Released
Bug description:
[Impact]
There are edge cases when the DHCP agent attempts to unplug an interface
and the device does not exist. This patch ensures that the agent can
tolerate this case.
[Test Case]
* create subnet with dhcp enabled
* set pdb.set_trace() in neutron.agent.linux.dhcp.DeviceManager.destroy()
* manually delete ns-<id> device in tenant namespace
* pdb continue and should not raise any error
[Regression Potential]
None
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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