[openstack-dev] [neutron[dhcp][dnsmask]: duplicate entries in addn_hosts causing no IP allocation

Daniel Comnea comnea.dani at gmail.com
Sun Jun 7 17:31:18 UTC 2015

Hi all,

I'm running IceHouse (build using Fuel 5.1.1) on Ubuntu where dnsmask
version 2.59-4.
I have a very basic network layout where i have a private net which has 2

 2fb7de9d-d6df-481f-acca-2f7860cffa60 | private-net
               | e79c3477-d3e5-471c-a728-8d881cf31bee |
|                                                         |
f48c3223-8507-455c-9c13-8b727ea5f441 |

and i'm creating VMs via HEAT.
What is happening is that sometimes i get duplicated entries in [1] and
because of that the VM which was spun up doesn't get an ip.
The Dnsmask processes are running okay [2] and i can't see anything
special/ wrong in it.

Any idea why this is happening? Or are you aware of any bugs around this
area? Do you see a problems with having 2 subnets mapped to 1 private-net?


[1] /var/lib/neutron/dhcp/2fb7de9d-d6df-481f-acca-2f7860cffa60/addn_hosts

nobody    5664     1  0 Jun02 ?        00:00:08 dnsmasq --no-hosts
--no-resolv --strict-order --bind-interfaces --interface=tapc9164734-0c
--leasefile-ro --dhcp-authoritative
--dhcp-range=set:tag1,,static,86400s --dhcp-lease-max=512
--conf-file= --server= --server= --domain=openstacklocal
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