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A virtual cluster (VC) consists of multiple virtual machines (VMs) running on different physical hosts, interconnected by a virtual network. A fault-tolerant protocol and mechanism are essential to the VC's availability and usability. We present Virtual Predict Checkpointing (or VPC), a lightweight, globally consistent checkpointing mechanism, which checkpoints the VC for immediate restoration after VM failures. By predicting the checkpoint-caused page faults during each checkpointing interval,doi:10.1109/sbac-pad.2012.31 dblp:conf/sbac-pad/LuRK12 fatcat:4axv6vqxqre2zp2a4wlpajhyea