[Users] Importing Image from Glance times out

Hi, Using the new 3.4 public glance repository, I was able to successfully import the tiny 12mb CirrOS image and it appeared in my data store. However when trying the larger CentOS image, it took much longer. For some reason I can only push 50Kbps from any of the ovirt infrastructure so after many hours in the datastore I can see it's finished downloading the full 1gb image but it'll remain locked in the ovirt engine. Any thoughts on why this happens? Thanks, Andrew