Multiple node compute doesn't support retry semantics

[Brian Elliott]

Commit 885cf0949ab2e116da39143c2f6469362367ec7d introduced multiple-node compute support, but does not send information about nodes attempting when rescheduling builds, so the RetryFilter will avoid the entire host.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/16799
Committed: http://github.com/openstack/nova/commit/f87c2e8334306cb7ef78b64a4bf5949b73d87617
Submitter: Jenkins
Branch: master

commit f87c2e8334306cb7ef78b64a4bf5949b73d87617
Author: Arata Notsu <email address hidden>
Date: Sat Nov 24 02:09:25 2012 +0900

    RetryFilter checks 'node' as well as 'host'

    FilterScheduler and RetryFilter use "(host, node)" instead of "host" to
    filter candidates. It makes rescheduling on different nodes in the same
    host possible.

    Fix bug 1081370

    Change-Id: Id51b262de7b47b5f9215463eca5ae07a29109c3f