Updated openstack/openstack
Project: openstack/swift  a46438a93458c6aa7b334c3ca5bb9285fd6b9b5a

Multithread optimization for object updater

This change makes the object updater work the same
as the container updater, which is that it now
spawns one thread for each node that it needs to
update. This should help optimize its
performance/efficiency.

Change-Id: If740b8c67c0d953e4b510913bd8594570d868da6