Comment 2 for bug 1628626

Reviewed: https://review.openstack.org/378945
Committed: https://git.openstack.org/cgit/openstack/os-brick/commit/?id=1d51eb64acebf7bafa277f0060bc5d2c7ca73d52
Submitter: Jenkins
Branch: master

commit 1d51eb64acebf7bafa277f0060bc5d2c7ca73d52
Author: cheng <email address hidden>
Date: Wed Sep 28 18:03:31 2016 +0000

    Close connection to ceph after cinder bakcup

    If we don't close connection to ceph cluster,
    The connection count increases with cinder bakcup until exceed max open files.
    Then rise OSError: [Errno 24] Too many open files

    This patch is to close connection to ceph cluster after cinder backup.

    Change-Id: I2fb243d2a57771dc3589e96db54e998e2c1c8ef7
    Closes-bug: #1628626