METHOD FOR HIGH AVAILABILITY OF SERVICES IN CLOUD COMPUTING SYSTEMS

A method and computer program product for providing High Availability (HA) of services in a cloud-based system. The services are the applications used by the end users of the cloud system. The system uses shared cloud distributed storage. The cloud data is distributed over several nodes and is duplicated in an on-line mode. Each user launches and runs his own Virtual Execution Environment VEE (VM or Container) used as a cloud service. If one of the hardware nodes becomes unavailable, the HA system restores all of the VEEs of the failed node on a functional hardware node. Each node has a daemon, which monitors the situation and, if one of the nodes crashes, a master daemon provides for the restoration of the services of this node on other available nodes of the cloud.