Live Container Migration via Pre-restore and Random Access Memory

Container technology is increasingly being used for virtualization due to its ability to isolate the operating environment of the program. In cloud computing environment, we need to migrate containers between different hosts for load balancing or downtime maintenance. However, during the migration process, the container will be temporarily shut down, and the service will be unavailable. Therefore, the time cost is an essential indicator to measure the quality of the migration process. To achieve live container migration, we propose a pre-restore method and a complete random access memory (RAM) based method to migrate containers. Extensive experiments validate the effectiveness of our methods in reducing downtime and improving the efficiency of container migration.