Patent ID: 8539488

Claim:
A computer system for providing live migration of one or more applications comprising: computer system memory comprised of one or more memory locations configured to store said one or more applications; one or more Central Processing Units (CPUs) operatively connected to said computer system memory and configured to execute said one or more applications on a host with a host operating system; one or more memory storage locations configured to store isolated environments containing one or more applications, wherein the isolated environments comprise at least one of one or more interception layers configured to intercept access to system resources and interfaces for the one or more applications, one or more barrier synchronization barriers, and a checkpointing library for each of the one or more applications, configured to capture a runtime state of one or more of the applications; and an interception database configured to map between resources inside and outside the isolated environments for the one or more applications, wherein the one or more applications are isolated from other applications and said host operating system while the one or more applications are running within the isolated environments, wherein the one or more applications are launched into the isolated environments without being suspended during launch; wherein the live migration of the one or more applications is performed by said checkpointing library performing a checkpoint-restore operation and said checkpointing library is pre-loaded; and wherein the one or more applications are live migrated between isolated environments running on different hosts, and are Kept running on a primary host within an isolated environment and live migrated to isolated environments running on one or more additional hosts to perform a scale-out operation between said primary host and the one or more additional host.