[Expired for neutron because there has been no activity for 60 days.]
** Changed in: neutron
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1786047
Title:
neutron-dhcp-agent is unable to set network namespaces
Status in neutron:
Expired
Bug description:
Hi all,
I am running neutron-dhcp-agents on all my controller nodes. I figured
out that neutron-dhcp-agent has a problem to work with namespaces. It
is failing continuously. I have deployed openstack by using openstack
ansible and all my networking agents run on the hosts not on
containers.
root@ctrl1:~# uname -a
Linux ctrl1 4.4.0-130-generic #156-Ubuntu SMP Thu Jun 14 08:53:28 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
You have new mail in /var/mail/root
root@ctrl1:~# /openstack/venvs/neutron-18.0.0.0b3/bin/neutron-dhcp-agent
--version
neutron-dhcp-agent 12.0.0.0rc2.dev241
root@ctrl1:~# ls -la /var/run/netns
total 0
drwxrwxrwx 2 root root 100 aug 8 11:59 .
drwxr-xr-x 44 root root 1520 aug 8 16:11 ..
---------- 1 root root 0 aug 8 11:59
qdhcp-b43d85c9-575d-40f5-8960-2ba26620e127
---------- 1 root root 0 aug 7 11:28
qrouter-3755419c-2a20-4ed0-9012-af24863f2447
---------- 1 root root 0 aug 7 11:28
snat-3755419c-2a20-4ed0-9012-af24863f2447
root@ctrl3:~# ip netns
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
qdhcp-b43d85c9-575d-40f5-8960-2ba26620e127
RTNETLINK answers: Invalid argument
qrouter-3755419c-2a20-4ed0-9012-af24863f2447
RTNETLINK answers: Invalid argument
snat-3755419c-2a20-4ed0-9012-af24863f2447
root@ctrl1:~# tail -f /var/log/neutron/neutron-dhcp-agent.log
2018-08-08 16:06:32.408 1039014 ERROR neutron.agent.linux.utils [-] Exit
code: 1; Stdin: ; Stdout: ; Stderr: RTNETLINK answers: Invalid argument
setting the network namespace "qdhcp-b43d85c9-575d-40f5-8960-2ba26620e127"
failed: Invalid argument
2018-08-08 16:06:32.409 1039014 WARNING neutron.agent.linux.ip_lib [-]
Setting ['sysctl', '-w', 'net.ipv6.conf.default.accept_ra=0'] in namespace
qdhcp-b43d85c9-575d-40f5-8960-2ba26620e127 failed: Exit code: 1; Stdin: ;
Stdout: ; Stderr: RTNETLINK answers: Invalid argument
setting the network namespace "qdhcp-b43d85c9-575d-40f5-8960-2ba26620e127"
failed: Invalid argument
.: ProcessExecutionError: Exit code: 1; Stdin: ; Stdout: ; Stderr: RTNETLINK
answers: Invalid argument
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent [-] Unable to
enable dhcp for b43d85c9-575d-40f5-8960-2ba26620e127.: OSError: [Errno 13]
Permission denied
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent Traceback
(most recent call last):
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent File
"/openstack/venvs/neutron-18.0.0.0b3/lib/python2.7/site-packages/neutron/agent/dhcp/agent.py",
line 144, in call_driver
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent
getattr(driver, action)(**action_kwargs)
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent File
"/openstack/venvs/neutron-18.0.0.0b3/lib/python2.7/site-packages/neutron/agent/linux/dhcp.py",
line 217, in enable
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent
interface_name = self.device_manager.setup(self.network)
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent File
"/openstack/venvs/neutron-18.0.0.0b3/lib/python2.7/site-packages/neutron/agent/linux/dhcp.py",
line 1438, in setup
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent
namespace=network.namespace):
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent File
"/openstack/venvs/neutron-18.0.0.0b3/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 1111, in ensure_device_is_ready
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent if not
dev.link.address:
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent File
"/openstack/venvs/neutron-18.0.0.0b3/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 545, in address
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent return
self.attributes.get('link/ether')
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent File
"/openstack/venvs/neutron-18.0.0.0b3/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 574, in attributes
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent
self._parent.namespace)
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent File
"/openstack/venvs/neutron-18.0.0.0b3/lib/python2.7/site-packages/oslo_privsep/priv_context.py",
line 207, in _wrap
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent return
self.channel.remote_call(name, args, kwargs)
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent File
"/openstack/venvs/neutron-18.0.0.0b3/lib/python2.7/site-packages/oslo_privsep/daemon.py",
line 202, in remote_call
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent raise
exc_type(*result[2])
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent OSError:
[Errno 13] Permission denied
2018-08-08 16:06:32.419 1039014 ERROR neutron.agent.dhcp.agent
2018-08-08 16:06:32.420 1039014 INFO neutron.agent.dhcp.agent [-] Finished
network b43d85c9-575d-40f5-8960-2ba26620e127 dhcp configuration
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