Please advise on what I can do to debug this. Note I have restarted node 2 (which is why you see the drop) to see if it raises in memory use over tim even with no VM's running
[compute[root@node2 log]$ rpm -qa | grep -i ovirt
libgovirt-0.3.2-1.el6.x86_64
ovirt-release35-006-1.noarch
ovirt-hosted-engine-ha-1.2.8-1.el6.noarch
ovirt-hosted-engine-setup-1.2.6.1-1.el6.noarch
ovirt-engine-sdk-python-3.5.6.0-1.el6.noarch
ovirt-host-deploy-1.3.2-1.el6.noarch