Hierarchical system configuration method and integrated scheduling method to provide multimedia streaming service on two-level double cluster system

One or more computer-readable media comprising computer-readable instructions thereon which, when executed by a computer, perform a method for providing an integrated scheduling of a hierarchical multimedia streaming server system to provide a multimedia streaming service on a two-level double cluster system, comprising the steps of:

• determining whether a system configuration mode of a current system is a two-level double cluster based system configuration mode;
• if the system configuration mode of the current system is not the two-level double cluster based system configuration mode, determining whether the system configuration mode of the current system is a mono-level single virtual cluster based system configuration mode;
• if the system configuration mode of the current system is the mono-level single virtual cluster based system configuration mode, performing a scheduling function for a mono-level virtual cluster based multimedia streaming server system including one virtual dispatcher node and multiple virtual server nodes;
• and
• if the system configuration mode of the current system is not the mono-level single virtual cluster based system configuration mode, performing a scheduling function for a single virtual server node based multimedia streaming server system according to the system configuration mode of the current system and a representative network address of the current system,
• wherein depending on a scale and a characteristic of the multimedia streaming service, the hierarchical multimedia streaming server system is configured into a single virtual server node based system, which is a minimum-scale, a mono-level single virtual cluster based system, which is a medium-scale, and a two-level double cluster based system, which is a maximum-scale and the integrated scheduling can be commonly used under each of the system configurations to provide the multimedia streaming service, and
• wherein performing the scheduling function for the mono-level virtual cluster based multimedia streaming server system includes:
• receiving an initial request related to a streaming service from a multimedia stream reproducing block through the virtual dispatcher node;
• analyzing the request and checking whether there is an available virtual server node storing a corresponding multimedia file;
• determining whether the available virtual server node exists;
• if the available virtual server node exists, determining whether there are multiple available virtual server nodes;
• if the multiple available virtual server nodes exist, analyzing resource states of multiple available virtual servers and selecting an optimum virtual server node;
• notifying a network address of the selected virtual server node to the multimedia stream reproducing block through the virtual dispatcher node;
• awaiting a request related to the streaming service from the multimedia stream reproducing block;
• and
• transmitting a multimedia stream data to the multimedia stream reproducing block from the selected virtual server node when receiving the request from the multimedia stream reproducing block.