Electronics and Telecommunications Research Institute

Seungjo Bae

Kwang-Won Koh

Myung-Joon Kim

Kang Ho Kim

Young-Woo Jung

Jin Mee Kim

Seung Hyub Jeon

Young Choon Woo

A method for memory management, include allocating an empty page of a physical memory for reference data according to execution of an application program, and mapping the empty page to a virtual memory; checking a physical address of the physical memory to which the reference data has been loaded; mapping the checked physical address to the virtual memory to which the empty page has been mapped, and mapping the reference data; and releasing allocation of the allocated physical memory when the reference data is mapped to the virtual memory.

Method and apparatus for memory management

Provided are a virtualization based high availability cluster system and a method for managing failures in a virtualization based high availability cluster system. The high availability cluster system includes a plurality of virtual nodes, and a plurality of physical nodes each including a message generator for generating a message denoting that the virtual nodes are in a normal state and transmitting the generated message to virtual nodes in a same physical node. One of the virtual nodes not included in a first physical node among the plurality of the physical nodes takes over resources related to a service if a failure is generated in one of virtual nodes included in the first physical node.

Virtualization based high availability cluster system and method for managing failure in virtualization based high availability cluster system

Growing community of inventors

Daejeon, South Korea

Seungjo Bae