VIRTUAL MACHINE MANAGEMENT

A migration management service monitors the resource usage or other behavior factors related to virtual machine instances implementing database functionality and hosted on various physical computing devices. Based on the resource usage associated with the implementation of the database functionality and other behavioral factors, the migration management service identifies a set of target hosted virtual machine instances for possible migration. The migration management service can further identify and prioritize from the set of target hosted virtual machine instances which hosted virtual machine instances may have a greater likelihood to impact the execution of other hosted virtual machine instances being hosted in the same physical computing device. Based on the identification and prioritization, the migration management service can then cause the migration of one or more hosted virtual machine instances unto on a different physical computing device.