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[Hoang Do <dohuyhoang88@xxxxxxxxx>]

Public bug reported:

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.

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: dashboard error horizon

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

Title:
  Wrong Dashboard error message after launching instance failed

Status in OpenStack Neutron (virtual network service):
  New

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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