Hi, I'd like you to take a look at this patch for potential DocImpact. https://review.openstack.org/37407 Log: commit e378be10db6b085f1baa9c12a41909cf827c50fe Author: Inbar <inbar_shapira at il.ibm.com> Date: Tue Jul 16 23:27:55 2013 +0300 WIP: multiple scheduler policies (drivers) Add initial support for multiple scheduler policies in a single scheduler environment Currently supports FilterScheduler implements blueprint multiple-scheduler-drivers TODO tests DocImpact Change-Id: I8bcd3e48d8047b0ff19c435c7c8ae49cdb24352f Automatically generated bug (please review): https://bugs.launchpad.net/bugs/1205593