Method, apparatus and system for resource migration

An apparatus for resource migration, the apparatus comprising:

• a first obtaining unit, configured to, when a node is removed, obtain process information in the node, wherein the process information comprises mapping between a process and a memory corresponding to the process and affinity of the process;
• a first determining unit, configured to determine a destination node to which the process and the memory corresponding to the process are migrated, according to the mapping between the process and the memory corresponding to the process, and the affinity of the process which are obtained by the first obtaining unit;
• and
• a first migrating unit, configured to migrate the process in the node and the memory corresponding to the process to the destination node determined by the first determining unit.

A system for resource migration, the system comprising:

• a plurality of nodes, wherein each node comprises a CPU and a memory, and the plurality of nodes comprises:
• a to-be-immigrated node, a to-be-emigrated node and a control node;
• wherein a CPU on the control node is configured to, when the to-be-emigrated node is removed, obtain process information in the to-be-emigrated node, determine, according to the process information, the to-be-immigrated node to which a process and a memory corresponding to the process are migrated, and migrate the process in the to-be-emigrated node and the memory corresponding to the process to the to-be-immigrated node;
• and
• wherein the process information comprises mapping between the process and the memory corresponding to the process and affinity of the process.