Comment 11 for bug 1230047

Reviewed: https://review.openstack.org/63933
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=bf882fbc4aa68cf0191bce70e622d81969617c02
Submitter: Jenkins
Branch: master

commit bf882fbc4aa68cf0191bce70e622d81969617c02
Author: Gary Kotton <email address hidden>
Date: Tue Dec 24 06:19:26 2013 -0800

    VMware: create datastore utility functions

    The patch moves datastore interfaces from vmops and vm_util
    to a separate file - ds_util.

    This is part of the blueprint vmware-image-cache-management.

    In the past the datastore methods would poll the task
    to determine that it had completed. This has beem addressed by
    making the driver _poll_task return the task information.

    The patch set also solves the following bugs by checking if
    the FileAlreadyExistsException exception is raised. This could
    be due to another process or thread creating the file.

    Closes-bug: 1230047
    Closes-bug: 1254128

    Change-Id: I788e33dbcb3dedc41831b976137607274b1c02ca