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[Bug 1189909] Re: dhcp-agent does always provide IP address for instances with re-cycled IP addresses.

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Ryan Moats <rmoats@xxxxxxxxxx>
Date: Wed, 14 Oct 2015 18:39:34 -0000
Reply-to: Bug 1189909 <1189909@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Package changed: quantum (CentOS) => centos

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https://bugs.launchpad.net/bugs/1189909

Title:
  dhcp-agent does always provide IP address for instances with re-cycled
  IP addresses.

Status in neutron:
  Fix Released
Status in quantum package in Ubuntu:
  Confirmed
Status in CentOS:
  New

Bug description:
  Configuration: OpenStack Networking, OpenvSwitch Plugin (GRE tunnels), OpenStack Networking Security Groups
  Release: Grizzly

  Sometime when creating instances, the dnsmasq instance associated with
  the tenant l2 network does not have configuration for the requesting
  mac address:

  Jun 11 09:30:23 d7m88-cofgod dnsmasq-dhcp[10083]: DHCPDISCOVER(tap98031044-d8) fa:16:3e:da:41:45 no address available
  Jun 11 09:30:33 d7m88-cofgod dnsmasq-dhcp[10083]: DHCPDISCOVER(tap98031044-d8) fa:16:3e:da:41:45 no address available

  Restarting the quantum-dhcp-agent resolved the issue:

  Jun 11 09:30:41 d7m88-cofgod dnsmasq-dhcp[11060]: DHCPDISCOVER(tap98031044-d8) fa:16:3e:da:41:45
  Jun 11 09:30:41 d7m88-cofgod dnsmasq-dhcp[11060]: DHCPOFFER(tap98031044-d8) 10.5.0.2 fa:16:3e:da:41:45

  The IP address (10.5.0.2) was re-cycled from an instance that was
  destroyed just prior to creation of this one.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: quantum-dhcp-agent 1:2013.1.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
  Uname: Linux 3.8.0-23-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.1
  Architecture: amd64
  Date: Tue Jun 11 09:31:38 2013
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: quantum
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.quantum.dhcp.agent.ini: [deleted]
  modified.conffile..etc.quantum.rootwrap.d.dhcp.filters: [deleted]

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