Abstract
Virtual machine is an emulation environment developed for dependable computing. Live migration mechanism provides the functionality that moves an ongoing virtual machine across hosts seamlessly so as to provide non-stop services. However, service quality cannot be satisfied if excessive pages are synchronized at the stop-and-copy phase. In this paper, a task-guided framework is proposed for live migration to start at an opportune time such that a short service downtime can be guaranteed. In our framework, a code entity which updates pages within a small range or in a low frequency is tagged. Once a tag has been detected, the coordinator either approves a pending live migration request or withdraws the permission to an ongoing live migration depending on the tag types. The prototype which is capable of task-guided live migration has been implemented. Our experiments show that both the service downtime and the task execution time have been improved by our task-guided approach regardless of the possibly existing suspension overhead.
This research is supported by Ministry of Science and Technology under the grant MOST 106-2221-E-197-004.
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Lin, CC., Kuo, YH. (2018). A Framework for Task-Guided Virtual Machine Live Migration. In: Xiang, Y., Sun, J., Fortino, G., Guerrieri, A., Jung, J. (eds) Internet and Distributed Computing Systems. IDCS 2018. Lecture Notes in Computer Science(), vol 11226. Springer, Cham. https://doi.org/10.1007/978-3-030-02738-4_4
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DOI: https://doi.org/10.1007/978-3-030-02738-4_4
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