Public bug reported:
I get endless attempts to configure the network in the neutron-dhcp-
agent logs.
Conditions
- devstack setup with extra `force_metadata = true` config option.
- DHCP enabled vxlan network with MTU=1000
$ openstack network create net1000 --mtu 1000
$ openstack subnet create sub1 --network net1000 --dhcp --subnet-range
10.20.30.0/24
Jul 26 09:38:35 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [None req-dfc13386-aaed-48e3-80b5-ebad6f324f3a None
None] Synchronizing state
Jul 26 09:38:35 devoct30 neutron-dhcp-agent[1690530]: INFO
oslo_messaging._drivers.amqpdriver [None
req-2caf8aeb-fbf0-457f-ac27-35d9aa75db90 None None] Expecting reply to msg
57ad6fa408c5444aa5b56be27020ccce in queue reply_081c0528a7b5431897eb5e8a5e4a7919
Jul 26 09:38:35 devoct30 neutron-dhcp-agent[1690530]: INFO
oslo_messaging._drivers.amqpdriver [-] Received RPC response for msg
57ad6fa408c5444aa5b56be27020ccce
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [None req-2caf8aeb-fbf0-457f-ac27-35d9aa75db90 None
None] All active networks have been fetched through RPC.
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [-] Starting network
e5e3d4ff-f552-4864-aafc-5ed022616467 dhcp configuration
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent [-] Unable to enable dhcp for
e5e3d4ff-f552-4864-aafc-5ed022616467.:
neutron.privileged.agent.linux.ip_lib.InvalidArgument: Invalid parameter/value
used on interface tapb8ae86a5-ca, namespace
qdhcp-e5e3d4ff-f552-4864-aafc-5ed022616467.
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent Traceback (most recent call last):
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 265, in _call_driver
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent rv = getattr(driver, action)(**action_kwargs)
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 331, in enable
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent common_utils.wait_until_true(self._enable,
timeout=300)
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File "/opt/stack/neutron/neutron/common/utils.py",
line 739, in wait_until_true
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent while not predicate():
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 343, in _enable
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent interface_name = self.device_manager.setup(
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 1890, in setup
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent self.driver.init_l3(interface_name, ip_cidrs,
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/interface.py", line 152, in init_l3
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent device.addr.add(ip_cidr)
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 560, in add
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent add_ip_address(cidr, self.name,
self._parent.namespace, scope,
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 853, in add_ip_address
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent privileged.add_ip_address(
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/usr/local/lib/python3.9/site-packages/oslo_privsep/priv_context.py", line
271, in _wrap
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent return self.channel.remote_call(name, args, kwargs,
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/usr/local/lib/python3.9/site-packages/oslo_privsep/daemon.py", line 215, in
remote_call
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent raise exc_type(*result[2])
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent neutron.privileged.agent.linux.ip_lib.InvalidArgument:
Invalid parameter/value used on interface tapb8ae86a5-ca, namespace
qdhcp-e5e3d4ff-f552-4864-aafc-5ed022616467.
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [-] Finished network
e5e3d4ff-f552-4864-aafc-5ed022616467 dhcp configuration
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [None req-2caf8aeb-fbf0-457f-ac27-35d9aa75db90 None
None] Synchronizing state complete
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [None req-2caf8aeb-fbf0-457f-ac27-35d9aa75db90 None
None] Synchronizing state
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2074207
Title:
DHCP agent makes endless attempts to configure a network with MTU <
1280
Status in neutron:
New
Bug description:
I get endless attempts to configure the network in the neutron-dhcp-
agent logs.
Conditions
- devstack setup with extra `force_metadata = true` config option.
- DHCP enabled vxlan network with MTU=1000
$ openstack network create net1000 --mtu 1000
$ openstack subnet create sub1 --network net1000 --dhcp --subnet-range
10.20.30.0/24
Jul 26 09:38:35 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [None req-dfc13386-aaed-48e3-80b5-ebad6f324f3a None
None] Synchronizing state
Jul 26 09:38:35 devoct30 neutron-dhcp-agent[1690530]: INFO
oslo_messaging._drivers.amqpdriver [None
req-2caf8aeb-fbf0-457f-ac27-35d9aa75db90 None None] Expecting reply to msg
57ad6fa408c5444aa5b56be27020ccce in queue reply_081c0528a7b5431897eb5e8a5e4a7919
Jul 26 09:38:35 devoct30 neutron-dhcp-agent[1690530]: INFO
oslo_messaging._drivers.amqpdriver [-] Received RPC response for msg
57ad6fa408c5444aa5b56be27020ccce
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [None req-2caf8aeb-fbf0-457f-ac27-35d9aa75db90 None
None] All active networks have been fetched through RPC.
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [-] Starting network
e5e3d4ff-f552-4864-aafc-5ed022616467 dhcp configuration
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent [-] Unable to enable dhcp for
e5e3d4ff-f552-4864-aafc-5ed022616467.:
neutron.privileged.agent.linux.ip_lib.InvalidArgument: Invalid parameter/value
used on interface tapb8ae86a5-ca, namespace
qdhcp-e5e3d4ff-f552-4864-aafc-5ed022616467.
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent Traceback (most recent call last):
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 265, in _call_driver
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent rv = getattr(driver, action)(**action_kwargs)
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 331, in enable
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent common_utils.wait_until_true(self._enable,
timeout=300)
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File "/opt/stack/neutron/neutron/common/utils.py",
line 739, in wait_until_true
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent while not predicate():
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 343, in _enable
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent interface_name = self.device_manager.setup(
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/dhcp.py", line 1890, in setup
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent self.driver.init_l3(interface_name, ip_cidrs,
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/interface.py", line 152, in init_l3
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent device.addr.add(ip_cidr)
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 560, in add
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent add_ip_address(cidr, self.name,
self._parent.namespace, scope,
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 853, in add_ip_address
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent privileged.add_ip_address(
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/usr/local/lib/python3.9/site-packages/oslo_privsep/priv_context.py", line
271, in _wrap
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent return self.channel.remote_call(name, args, kwargs,
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent File
"/usr/local/lib/python3.9/site-packages/oslo_privsep/daemon.py", line 215, in
remote_call
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent raise exc_type(*result[2])
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent neutron.privileged.agent.linux.ip_lib.InvalidArgument:
Invalid parameter/value used on interface tapb8ae86a5-ca, namespace
qdhcp-e5e3d4ff-f552-4864-aafc-5ed022616467.
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: ERROR
neutron.agent.dhcp.agent
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [-] Finished network
e5e3d4ff-f552-4864-aafc-5ed022616467 dhcp configuration
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [None req-2caf8aeb-fbf0-457f-ac27-35d9aa75db90 None
None] Synchronizing state complete
Jul 26 09:38:36 devoct30 neutron-dhcp-agent[1690530]: INFO
neutron.agent.dhcp.agent [None req-2caf8aeb-fbf0-457f-ac27-35d9aa75db90 None
None] Synchronizing state
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