Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/27966

Log:
commit bfd7aa535f611939173304646c4ac05e0656a1e1
Author: Greg Lange <greglange at gmail.com>
Date:   Wed May 1 21:11:25 2013 +0000

    Add parallelism to object expirer daemon.
    
    Two types of parallelism are added:
    
    - concurrency to speed up what a single process does
    - a way to run multiple daemons to work on different parts of the work
    
    This change will cause the object expirer's DELETE concurrency to go
    from 1 to 1024.  If this is not desired, thread_count can be set in the
    config to whatever value is desired.
    
    DocImpact
    
    Change-Id: I48997f68eb2fd8de19a5ee8b9fcdf76dde2ba0ab