[Bug 1453062] Re: ovs-vsctl fails with Protocol error until restarted

[Matt Fischer]

I have the same issue except I'm installing with puppet not juju and I'm
using Ubuntu Cloud Archive:

root at openstack-puppet-test:/var/log/openvswitch# apt-cache policy openvswitch-switch
openvswitch-switch:
  Installed: 2.4.0-0ubuntu4~cloud0
  Candidate: 2.4.0-0ubuntu4~cloud0
  Version table:
 *** 2.4.0-0ubuntu4~cloud0 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ trusty-updates/liberty/main amd64 Packages
        100 /var/lib/dpkg/status

** Changed in: openvswitch (Ubuntu)
       Status: New => Confirmed

** Changed in: openvswitch (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1453062

Title:
  ovs-vsctl fails with Protocol error until restarted

Status in openvswitch package in Ubuntu:
  Confirmed

Bug description:
  Having deployed vivid-kilo-proposed with openstack-charm-testing, I'm initially unable to launch instances, because ovs-vsctl errors out:
  ovs-vsctl: unix:/var/run/openvswitch/db.sock: database connection failed (Protocol error)

  Restarting openvswitch-switch resolves the issue:
  $ juju ssh nova-compute/0 sudo systemctl restart openvswitch-switch.service

  See attached a nova-compute.log from one of the units where this
  failed.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: openvswitch-switch 2.3.1-0ubuntu1
  ProcVersionSignature: User Name 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  Date: Fri May  8 09:19:37 2015
  Ec2AMI: ami-00000360
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.medium
  Ec2Kernel: aki-00000002
  Ec2Ramdisk: ari-00000002
  SourcePackage: openvswitch
  UpgradeStatus: No upgrade log present (probably fresh install)

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