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Harald Schiöberg's Publications

Live Wide-Area Migration of Virtual Machines Including Local Persistent State
Citation key BKFS-LWMVMILPS-07
Author Bradford, Robert and Kotsovinos, Evangelos and Feldmann, Anja and Schiöberg, Harald
Title of Book Proceedings of the Third International ACM SIGPLAN/SIGOPS Conference on Virtual Execution Environments (VEE '07)
Pages 169–179
Year 2007
ISBN 978-1-59593-630-1
DOI http://dx.doi.org/10.1145/1254810.1254834
Location San Diego, California, USA
Address New York, NY, USA
Month June
Publisher ACM Press
Abstract So far virtual machine (VM) migration has focused on transferring the run-time memory state of the VMs in local area networks (LAN). However, for wide-area network (WAN) migration it is crucial to not just transfer the VMs image but also transfer its local persistent state (its file system) and its on-going network connections. In this paper we address both: by combining a blocklevel solution with pre-copying and write throttling we show that we can transfer an entire running web server, including its local persistent state, with minimal disruption three seconds in the LAN and 68 seconds in the WAN); by combining dynDNS with tunneling, existing connections can continue transparently while new ones are redirected to the new network location. Thus we show experimentally that by combining well-known techniques in a novel manner we can provide system support for migrating virtual execution environments in the wide area.
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