Method and device for managing memory resources in cluster system, and network system

Abstract

The embodiment of the invention provides a method and a device for managing memory resources in a cluster system. The method for managing the memory resources in the cluster system comprises: sending a message for requesting remote caching to an arbitration server by a requesting party, wherein the message for requesting the remote caching comprises remote caching capacity required by a local virtual machine; receiving information of a provision party sent by the arbitration server by the requesting party, wherein the information of the provision party is acquired by the arbitration server according to idle memory information reported by a physical host in the cluster system and the remote caching capacity required by the local virtual machine; and utilizing an idle memory of the provision party by the requesting party according to the information of the provision party, wherein the requesting party and the provision party are different physical hosts in the cluster system. By using the technical proposal provided by the embodiment of the invention, the utilization rate of the memory resources in the cluster system can be improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, device and network system for managing memory resources in a cluster system. Background technique [0002] Multiple virtual machines (Virtual Machine, VM) are virtualized on a physical host, referred to as virtual machines, on which multiple independent guest operating systems can run simultaneously. Virtual Machine Monitor, VMM) to access actual physical resources. [0003] The prior art provides an exclusive memory server as a buffer between the physical host memory and the local disk. The memory server maintains a free memory pool as the remote buffer of each physical host, so that each physical host The operating system and application software on the virtual machine can use the high-speed network to transparently use the memory resources on the memory server across physical hosts. [0004] The disadvantages of the prior art are: [0005] In the prior art,...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, a single memory server maintains a free memory pool as a remote buffer for each physical host. When the number of physical hosts increases, the capacity of the free memory pool maintained by the memory server increases, and one memory server is very slow. It is difficult to meet the large-capacity memory requirements; and the idle memory resources of each physical host are not utilized, so that the utilization rate of memory resources in the cluster system is low

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