Live wide-area migration of virtual machines including local persistent state
| Venue: | In VEE ’07: Proceedings of the 3rd international conference on Virtual execution environments (New |
| Citations: | 32 - 0 self |
BibTeX
@INPROCEEDINGS{Bradford_livewide-area,
author = {Robert Bradford and Evangelos Kotsovinos and Anja Feldmann and Harald Schiöberg},
title = {Live wide-area migration of virtual machines including local persistent state},
booktitle = {In VEE ’07: Proceedings of the 3rd international conference on Virtual execution environments (New},
year = {},
pages = {169--179},
publisher = {ACM Press}
}
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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.
