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[Launchpad Bug Tracker <1323348@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Dashboard (Horizon) because there has been no
activity for 60 days.]

** Changed in: horizon
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1323348

Title:
  Unclear error message when launching instance fails

Status in OpenStack Dashboard (Horizon):
  Expired

Bug description:
  I got this error message on dashboard after trying to launch a new
  instance with a fresh downloaded image:

  Error: Failed to launch instance "xxx": Please try again later [Error:
  Error during following call to agent: ['ovs-vsctl', '--timeout=120',
  'del-port', 'br-int', u'qvo4e119f09-94']]

  This message made me thought it's definitely a neutron error, and
  spending hours debuging neutron. Then I found in nova-compute.log:

  Stderr: 'ovs-vsctl: no port named qvo4e119f09-94\n'
  2014-05-26 15:44:01.386 32212 ERROR nova.compute.manager [req-41da714f-9719-4d0a-9c18-f373a5ec4eb6 a26770b472c04e5aa064b1f2e7f7e791 704a532a5260484ba56b069b7219d3ff] [instance: fd515727-b579-43cb-9ad1-770caa64be73] Error: Flavor's disk is too small for requested image.

  The real error is the flavor is too small. "ovs no port" is simply a side-effect when rolling back the instance. 
  I wonder could we change the error message on Dashboard.

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