[Bug 1314189] Re: instance creation fails on compute nodes with > 175 instances with neutron security groups enabled

[Ryan Moats]

This report has gone ~1 year without activity.  Marking it as incomplete
to start the 60 day clean up timer - if this issue is still valid,
please update the defect

** Changed in: neutron
       Status: Confirmed => Incomplete

** Changed in: neutron (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1314189

Title:
  instance creation fails on compute nodes with > 175 instances with
  neutron security groups enabled

Status in neutron:
  Incomplete
Status in neutron package in Ubuntu:
  Incomplete

Bug description:
  Setup: Neutron ML2 plugin, OpenvSwitch mechanism driver, Neutron
  Security Groups enabled.

  When compute nodes get busy with lots of instances (> 175), the
  neutron-openvswitch-agents start to take a long time to parse and
  update iptables firewall rules; we see the agent state go inactive and
  after a while nova gives up waiting for the notification from neutron
  to say that everything is setup and just tears down the instance
  (which was in paused state awaiting port creation I think).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: neutron-plugin-openvswitch-agent 1:2014.1-0ubuntu1
  ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  Date: Tue Apr 29 12:49:49 2014
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: neutron
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.neutron.rootwrap.d.openvswitch.plugin.filters: [deleted]

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