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[Bug 1250644] Re: dhcp_release not called causing new VMs to fail DHCP

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 05 Mar 2014 20:11:38 -0000
Reply-to: Bug 1250644 <1250644@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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

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https://bugs.launchpad.net/bugs/1250644

Title:
  dhcp_release not called causing new VMs to fail DHCP

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

Bug description:
  I've found some situations where dhcp_release is not called when a
  port is deleted.  When this happens, dnsmasq refused to give out the
  IP to a new port when the IP address gets recycled.  The result is
  that the VM with the new port cannot get its IP address on boot.

  There are a few conceivable scenarios that lead to this.  I will
  attempt to describe some in the comments.

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