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When an autoscaling event is triggered, Abiquo will search for a scaling rule that is valid for the specific time range, or for a default rule. Abiquo will create or delete/undeploy the number of virtual machines for the scaling operation, then wait for the cooldown period before accepting another scaling request. Scaling operations are managed by action plans and subject to all standard Abiquo constraints, such as privileges and allocation limits. In this initial release, Abiquo
When scaling in, Abiquo deletes and undeploys virtual machines without waiting for user confirmation to force the undeploy of virtual machines with disks that are not stored in the Apps library (ISO configuration drive or additional hard disk). Abiquo currently selects the virtual machines to delete or undeploy using first in, first out (FIFO), but in future releases the administrator will be able to select the scale in policy, from last in, first out (LIFO) or FIFO.
When scaling out, Abiquo will always create new clones instead of deploying virtual machines that are undeployed, for example, machines that were manually undeployed during maintenance.
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