on November 8, oVirt 4.2 saw the introduction of an important behind-the-scenes enhancement.
The change is associated with the exchange of information between the engine and the VDSM. It addresses the issue of multiple abstraction layers, with each layer needing to convert its input into a suitably readable format in order to report to the next layer.
This change improves data communication between the engine and Libvirt – the tool that manages platform virtualization.
Previously, the configuration file for a newly created virtual machine (VM) originated in the engine as a map or dictionary.