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instance boot up hangs in multi-node setup

asked 2014-02-12 12:28:08 -0600

sivasamyk gravatar image

updated 2014-02-12 13:19:10 -0600

  • Setup : devstack multi node configuration with 1 Controller+compute and 1 Compute node.
  • Images : Cirros & CentOS 6.5
  • Hypervisor : kvm

  • Launching an instance in Controller node with Cent OS - success & reachable

  • Launching an instance in Compute node with Cirros - success & reachable
  • Launching an instance in Compute node with Cent OS - Fail - Dashboard show the instance is active - instance not reachable

Let me know how to further debug this issue or places to look for more clues.


  • In case of CentOS instance the ramdisk& kernel file is not present at /opt/stack/data/nova/instances/<id>


2014-02-13 01:53:21.556+0000: 7883: error : virNWFilterDHCPSnoopEnd:2131 : internal error ifname "vnet0" not in key map
2014-02-13 01:53:21.557+0000: 7883: error : virNetDevGetIndex:653 : Unable to get index for interface vnet0: No such device

Console log:

Google, Inc.
Serial Graphics Adapter 12/07/11
SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ ( Wed Dec  7 17:04:47 UTC 2011
Term: 80x24
4 0
[2JSeaBIOS (version seabios-
Machine UUID 69d2575e-2ce0-4109-9cab-a082712f953c
gPXE ( - 00:03.0 C100 PCI2.10 PnP BBS PMM07E0@10 C100
Press Ctrl-B to configure gPXE (PCI 00:03.0)...                                                                               
Booting from Hard Disk...
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answered 2015-02-20 17:14:48 -0600 gravatar image

We ran into exactly the same issue. After upgrading to the latest C65 image with grub-0.97-93.el6.x86_64 and 2.6.32-504.1.3.el6.x86_64 kernel it resolved this issue.

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Also please check the image's grub.conf to make sure it does not depenf on vnc as the serial graphic devices. Otherwise the vnc service needs to be enabled. gravatar ( 2015-02-23 16:18:04 -0600 )edit

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Asked: 2014-02-12 12:28:08 -0600

Seen: 1,106 times

Last updated: Feb 20 '15