Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/16596

Log:
commit b1e8c29bd95874eb8a3d210b40da200051836aa8
Author: Chris Behrens <cbehrens at codestud.com>
Date:   Tue Nov 20 21:15:57 2012 +0000

    Add eventlet db_pool use for mysql
    
    This adds the use of eventlet's db_pool module so that we can make mysql
    calls without blocking the whole process.
    
    New config options are introduced:
    
    sql_dbpool_enable -- Enables the use of eventlet's db_pool
    sql_min_pool_size -- Set the minimum number of SQL connections
    
    The default for sql_dbpool_enable is False for now, so there is
    no forced behavior changes for those using mysql.  sql_min_pool_size
    is defaulted to 1 to match behavior if not using db_pool.
    
    Adds a new test module for our sqlalchemy code, testing this new option
    as much as is possible without requiring mysql server to be running.
    
    DocImpact
    
    Change-Id: I99833f447df05c1beba5a3925b201dfccca72cae