By default, oVirt's web UI logs users out after 30 minutes of inactivity. At times, this can be annoying - it may seem that every time you sit down at your desk, you have to put your credentials in again. Here's how to change that value from 30 minutes to something longer (or shorter, if wanted).
> engine-config -g UserSessionTimeOutInterval UserSessionTimeOutInterval: 30 version: general
engine-config -s UserSessionTimeOutInterval=600
> engine-config -g UserSessionTimeOutInterval UserSessionTimeOutInterval: 600 version: general
systemctl restart ovirt-engine
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