I had this issue this week as well.
When asked about the glusterfs that you self provisioned you stated
"ovirt1.localdomain:/gluster_bricks/engine”
So I am new to gluster but as a client of gluster you can only refer to it via volume
name.
host:/<volume name>
Hence maybe try ovirt1.localdomain:/engine.
That did the trick for me. Hope this helps. Cost me a week.