Fix cluster scaling in IDH plugin
Fix cluster scaling in IDH plugin

Fixes bug: #1275096

Change-Id: I12d32a120b513454bb0221519057553e0f910d71

crobby/sahara,openstack/sahara,esikachev/sahara-backup,mapr/sahara,esikachev/scenario,tellesnobrega/storm_plugin,henaras/sahara,zhujzhuo/Sahara,henaras/sahara,bigfootproject/sahara,xme1226/sahara,mapr/sahara,citrix-openstack-build/sahara,esikachev/scenario,citrix-openstack-build/sahara,tellesnobrega/storm_plugin,keedio/sahara,bigfootproject/sahara,matips/iosr-2015,egafford/sahara,crobby/sahara,esikachev/scenario,ekasitk/sahara,redhat-openstack/sahara,zhujzhuo/Sahara,crobby/sahara,tellesnobrega/storm_plugin,redhat-openstack/sahara,egafford/sahara,zhangjunli177/sahara,henaras/sahara,tellesnobrega/sahara,citrix-openstack-build/sahara,tellesnobrega/sahara,xme1226/sahara,mapr/sahara,keedio/sahara,zhangjunli177/sahara,bigfootproject/sahara,ekasitk/sahara,zhangjunli177/sahara,ekasitk/sahara,xme1226/sahara,redhat-openstack/sahara,keedio/sahara,esikachev/sahara-backup,zhujzhuo/Sahara,matips/iosr-2015,openstack/sahara,esikachev/sahara-backup,matips/iosr-2015