Hi,
We are seeing severe boot and delete performance issues with
FlatDHPManager and a lot of instances.
If I have 200 instances running and boot 1 new instance a kill -HUP
dnsmasq calls nova-dhcpbridge 201 times, 200 for the existing leases and
once for the new one.
The 200 events for existing leases end up here in nova-dhcpbridge:
def old_lease(mac, ip_address):
"""Update just as add lease."""
LOG.debug(_("Adopted old lease or got a change of mac"))
add_lease(mac, ip_address)
I'm not sure why we need to do this at all. The comment mentions
tracking a change of MAC and yet add_lease doesn't seem to do anything
with the MAC parameter.
I can fix my performance problem by ignoring any old leases, but I was
hoping someone could explain what the purpose is here.
Anton
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