Open Stack

You need to use block migration. Default is set to false:

usage: nova live-migration [--block-migrate] [--disk-over-commit]
                           <server> [<host>]

Migrate running server to a new machine.

Positional arguments:
  <server>            Name or ID of server.
  <host>              destination host name.

Optional arguments:
  --block-migrate     True in case of block_migration.
                      (Default=False:live_migration)
  --disk-over-commit  Allow overcommit.(Default=False)

-----Original Message-----
From: Darren Worrall [mailto:darren at iweb.co.uk] 
Sent: Friday, November 14, 2014 5:54 AM
To: openstack at lists.openstack.org
Subject: [Openstack] Live migration no longer working after Icehouse -> Juno upgrade

Hi all,

I'm experimenting in a multi-node lab environment, and have an
LVM+iSCSI cinder volume service behind 2 compute nodes. On Icehouse, I
was able to live migrate instances between the compute nodes apparently without issue, but after an upgrade to Juno I get:

InvalidSharedStorage: compute2 is not on shared storage: Live migration can not be used without shared storage.

[compute2 being the source node of the migration]

It's true that /var/lib/nova/instances/ is not on shared storage, but it wasnt before and it was apparently still fine. Here's the nova.conf[0], and the cinder.conf[1]

Can anyone help?

Darren

[0]: http://pastebin.com/Vcug4WJG
[1]: http://pastebin.com/CB2LZZzX

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