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Most mass data processing applications nowadays often need long, continuous, and uninterrupted data access. Parallel/distributed file systems often use multiple metadata servers to manage the global namespace and provide a reliability guarantee. With the rapid increase of data amount and system scale, the probability of hardware or software failures keeps increasing, which easily leads to multiple...
As PC clusters increase in popularity and quantity, message-passing between nodes has been an important issue for high failure rate in the network. File access in a cluster file system often contains several sub-operations, each includes one or more network transmissions. Any network failures will cause the file system service unavailable. In this paper, we describe a highly reliable message-passing...
As one of the key characteristics of virtualization, live virtual machine (VM) migration provides great benefits for load balancing, power management, fault tolerance and other system maintenance issues in modern clusters and data centers. Although Pre-Copy is a widespread used migration algorithm, it does transfer a lot of duplicated memory image data from source to destination, which results in...
Checkpoint/restart has been widely used in computing systems for fault tolerance, job scheduling and system maintenance purposes. However, the lack of transparency has hindered adoptions of many implementations of it. In this paper, we present a fully transparent parallel checkpoint/restart framework, DCR, which takes the advantages of kernel-level checkpointing method and TCP session preservation...
In large-scale cluster systems, the failure rate of network connection is non-negligibly high. A cluster file system must have the ability to handle network failures in order to provide high-available data accesses service. Traditionally, network failure handling is only guaranteed by network protocol, or implemented within the file system semantic layer. We present the high-available message-passing...
Daemon-based MPI launchers are the mainstream in nowadays, because they can startup processes rapidly. However, effective task management and fault tolerance become more important as the scale of supercomputers enlarges. A new fast-start and fault tolerant launcher, called SFLauncher, has been used to startup MPICH task on Dawning supercomputers. This paper details its features and implementation,...
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