Public bug reported:
The error message is seen on each ovs agent resync on compute node where
there are dvr serviced ports. Resync can be triggered by any error -
this is unrelated to this bug.
The error message appears on processing distributed router port for a
subnet which is already in local_dvr_map of the agent, see
_bind_distributed_router_interface_port in ovs_dvr_neutron_agent.py:
if subnet_uuid in self.local_dvr_map:
ldm = self.local_dvr_map[subnet_uuid]
csnat_ofport = ldm.get_csnat_ofport()
if csnat_ofport == constants.OFPORT_INVALID:
LOG.error(_LE("DVR: Duplicate DVR router interface detected "
"for subnet %s"), subnet_uuid)
return
where csnat_ofport = OFPORT_INVALID by default and can only change when
the agent processes csnat port of the router - this will never happen on
compute node and we'll see the misleading log.
The proposal would be to delete the condition and the log as they're
useless.
** Affects: neutron
Importance: Medium
Assignee: Oleg Bondarev (obondarev)
Status: Confirmed
** Tags: l3-dvr-backlog
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https://bugs.launchpad.net/bugs/1629816
Title:
Misleading "DVR: Duplicate DVR router interface detected for subnet"
Status in neutron:
Confirmed
Bug description:
The error message is seen on each ovs agent resync on compute node
where there are dvr serviced ports. Resync can be triggered by any
error - this is unrelated to this bug.
The error message appears on processing distributed router port for a
subnet which is already in local_dvr_map of the agent, see
_bind_distributed_router_interface_port in ovs_dvr_neutron_agent.py:
if subnet_uuid in self.local_dvr_map:
ldm = self.local_dvr_map[subnet_uuid]
csnat_ofport = ldm.get_csnat_ofport()
if csnat_ofport == constants.OFPORT_INVALID:
LOG.error(_LE("DVR: Duplicate DVR router interface detected "
"for subnet %s"), subnet_uuid)
return
where csnat_ofport = OFPORT_INVALID by default and can only change
when the agent processes csnat port of the router - this will never
happen on compute node and we'll see the misleading log.
The proposal would be to delete the condition and the log as they're
useless.
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https://bugs.launchpad.net/neutron/+bug/1629816/+subscriptions
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