Over-committing of Co-efficients

This feature is only available in: DaDesktop Private Server (DDPS), DaDesktop On-Premise (DDOP) only.

 

With the increase in complexity and processing power required for courses, especially with nested virtualisation or higher performance requirements for a higher number of trainees' desktops; it's possible you may very occasionally encounter an error such as this :-

The warning specifically relates to CPU, memory or disk space. In this case the first course of action would be to try moving your machine(s) to a less heavily loaded server or data centre, or to reduce the resource requirements if at all possible.

If neither option is available, a simple and quick solution, when the running units are just slightly over the maximum number normally permitted, is to temporarily employ 'over-committing' for one or more of the CPU, memory or disk coefficients.This can be carried out via the GUI, as shown below.

Navigate to /da/admin/servers/all, click the Edit button for your server, and then scroll down to this section.

The server list also displays those servers with over-committed coefficients currently in use. This is useful if you need to clear these after a course has concluded, allowing the coefficients to be returned to their default values again.

 

 

 

 

 

 

 

 

 

 

Any changes made should be considered a temporary fix and not a permanent solution to insufficient resources. Changes made to permit a course to continue or take place should be reverted at the conclusion of the course.
 

DaDesktop On-premise Requirements

The over-committing function is possible because of tpapi, which is part of the DaDesktop codebase. Tpapi is currently only compatible with Python 3.12, meaning the corresponding operating system must be at least Ubuntu 23.10.