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[Bug 1242712] Re: multiple dnsmaq instances on multiple nodes for the same network are not aware of each other's leases

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Tue, 01 Apr 2014 11:56:16 -0000
Reply-to: Bug 1242712 <1242712@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1242712

Title:
  multiple dnsmaq instances on multiple nodes for the same network are
  not aware of each other's leases

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  Configuration:
  ===========
  In multi-node configuration with,

  On one node:
  # Quantum
  disable_service n-net
  enable_service q-svc
  enable_service q-agt
  enable_service q-dhcp
  enable_service q-l3
  enable_service q-meta
  enable_service neutron

  On the other node:
  ENABLED_SERVICES=n-cpu,rabbit,neutron,q-agt,q-dhcp

  - Set up a private network, and add a dhcp agent per node (for HA).
  - Spawn a VM on each node and check each vm to have received a lease from a diferent dhcp server.

  Problem:
  =======

  Each DHCP server is not aware the other dhcp server's leases and VMs
  in the same network do not always perform name resolution to each
  other VMs.

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