Comment 7 for bug 1316373

Reviewed: https://review.openstack.org/113208
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=82cc3be42fbcb7b3088d15ed15af520ae3fa0cec
Submitter: Jenkins
Branch: stable/icehouse

commit 82cc3be42fbcb7b3088d15ed15af520ae3fa0cec
Author: Vladik Romanovsky <email address hidden>
Date: Mon May 12 17:24:48 2014 -0400

    Do not fail cell's instance deletion, if it's missing info_cache

    Currently the methods in cell messaging are trying to refresh the
    instance. However, in some corner cases info_cache is not being
    created for instances in ERROR state. This makes the delete
    operation, of such instances, to fail, while it should not.

    Handling the InstanceInfoCacheNotFound exception and not
    re-raising it, for delete operations.

    (cherry picked from commit 47898ba8f9526c88a03209dbc35a59d90b79e809)

    Conflicts:
            nova/tests/cells/test_cells_messaging.py

    Closes-Bug: #1316373
    Change-Id: I33c33e3ac1180e8293d950d60fb126e325a2c0cf