关键词: 云计算集群, 容错池, 容器迁移

Abstract: With the application and popularization of cloud services, the number of containers in cloud computing cluster is also increasing continuously. Once a node in a cluster fails, how to efficiently migrate the service on the fault node to a reliable one becomes an important problem for maintaining cloud computing cluster. The traditional cluster fault tolerant methods take backup hosts as fault tolerant nodes. Due to the limitation of service operating environment, a physical host can only be used as an alternate host that runs one single kind of service. In order to improve the efficiency of backup machine utilization and reduce the rejection rate and fault tolerant migration delay, a container migration technology based on container fault-tolerant is proposed. It integrates the check point and remote direct memory access (RDMA) techniques to relieve the impact of task recovery environment coupling problems on task migration without affecting the normal operation of the container virtual cluster. Extensive simula-tions are conducted to verify the availability and effectiveness of the proposed method in a laboratory environment.

Key words: cloud computing cluster, fault-tolerant pool, container migration