ovirt-scheduler-proxy is missing in oVirt 4.3 release. Tracking here for inclusion in 4.3.2.
Verified on: ovirt-engine-4.3.2.1-0.0.master.20190305140204.git3649df7.el7.noarch ovirt-scheduler-proxy 0.1.8-1.el7.centos ovirt-master-snapshot
This bugzilla is included in oVirt 4.3.2 release, published on March 19th 2019. Since the problem described in this bug report should be resolved in oVirt 4.3.2 release, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.