SYSTEMS AND METHODS FOR VIRTUAL MACHINE LIVE MIGRATION

• Main Authors: PETTER VLADIMIR, SHANKAR VINOD R, KUZNETSOV VYACHESLAV
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

Systems and methods for live migration of VMs between different nodes are provided. The system and methods utilize a heat map and an access pattern to determine the fetching order of files and/or blocks from the cache of a host node for rebuilding the cache on a destination node. The systems and methods are able to persist the cache of a host node across a crash, allowing a destination node to fetch blocks and/or files from the cache on the host node after a crash instead of having to access the VM files and/or blocks from an original source. Accordingly, the systems and methods decrease migration latency of the VM and free up network bandwidth during the live migration when compared to prior systems and methods that utilize just the heat map to determine the fetching order and/or that arenot able to persist the cache across a crash. 提供了用于VM在不同节点之间的实时迁移的系统和方法。该系统和方法利用热图和访问模式来确定从主机节点的高速缓存对文件和/或块的提取顺序以用于在目的地节点上重建高速缓存。该系统和方法能够跨崩溃保持主机节点的高速缓存，从而允许目的地节点从崩溃之后的主机节点上的高速缓存提取块和/或文件，而不是必须从原始源访问VM文件和/或块。因此，当与仅利用热图来确定提取顺序和