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At the end of a a reservation VCL must do something with the node that was just used. What it does This action is controlled by the Predictive Loading Modules. Previous to version 2.4, these were set as an attribute of Management Nodes. In the 2.4 release, they were moved to be an attribute of Computers. As of version 2.4, there are 3 options to choose from:

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Level 1 analyzes reservation log data to determine the most popular set of images over a time frame. The time frame used varies depending on the percentage of nodes being used. The higher the percentage of nodes in use, the shorter the time frame. Then, it determines the most popular image during that time frame that is not already preloaded on at least two node. That image is deployed to the nodenodes. This module does a good job providing a variety of preloaded images. However, it does not handle spikes for specific images well.

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