Synergistic policy and virtual machine consolidation in cloud data centers
Synergistic policy and virtual machine consolidation in cloud data centers
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DOI：
10.1109/infocom.2016.7524354
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发表时间：
2016-04
期刊：
影响因子：
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通讯作者：
Lin Cui;Richard Cziva;Fung Po Tso;D. Pezaros
中科院分区：
文献类型：
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作者：
Lin Cui;Richard Cziva;Fung Po Tso;D. Pezaros
在现代云数据中心（DC）中，网络策略的正确实施对于为租户提供安全、高效、高性能的服务至关重要。据报道，网络策略管理低效导致数据中心停机时间的78%，受到动态变化的网络特性和动态虚拟机（VM）整合影响的挑战。尽管在政策和虚拟机管理方面已经有了重要的研究，但迄今为止它们一直被视为不相交的研究问题。在本文中，我们探索了同时、动态VM和策略整合，并制定了策略-VM整合（PVC）问题，该问题被证明是NP-Hard问题。然后，我们提出了同步，这是一种有效且协同的方案，可以共同整合网络策略和虚拟机。广泛的评估结果和控制器的测试床实施表明，同步下的策略和虚拟机迁移可在严格遵守网络策略要求的同时，在几秒钟内显着降低流端到端延迟近 40%，全网通信成本降低 50%。
In modern Cloud Data Centers (DC)s, correct implementation of network policies is crucial to provide secure, efficient and high performance services for tenants. It is reported that the inefficient management of network policies accounts for 78% of DC downtime, challenged by the dynamically changing network characteristics and by the effects of dynamic Virtual Machine (VM) consolidation. While there has been significant research in policy and VM management, they have so far been treated as disjoint research problems. In this paper, we explore the simultaneous, dynamic VM and policy consolidation, and formulate the Policy-VM Consolidation (PVC) problem, which is shown to be NP-Hard. We then propose Sync, an efficient and synergistic scheme to jointly consolidate network policies and virtual machines. Extensive evaluation results and a testbed implementation of our controller show that policy and VM migration under Sync significantly reduces flow end-to-end delay by nearly 40%, and network-wide communication cost by 50% within few seconds, while adhering strictly to the requirements of network policies.