| 基于哈希图的虚拟机实时迁移方法 |
| |
| 引用本文： | 田俊峰,屈雪晴,何欣枫,李珍.基于哈希图的虚拟机实时迁移方法[J].电子与信息学报,2020,42(3):712-719. |
| |
| 作者姓名： | 田俊峰 屈雪晴 何欣枫 李珍 |
| |
| 作者单位： | 河北大学网络空间安全与计算机学院 保定 071002 |
| |
| 基金项目： | 国家自然科学基金(61802106) |
| |
| 摘 要： | 跨广域网的虚拟机实时迁移是多数据中心云计算环境的重要技术支撑。当前跨广域网的虚拟机实时迁移受到带宽小和无共享存储的限制而面临着技术挑战，如镜像数据迁移的安全性和一致性问题。为此，该文提出基于哈希图(HashGraph)的跨数据中心虚拟机实时迁移方法，运用去中心化的思想，实现数据中心之间可靠和高效的镜像信息分布式共享。通过HashGraph中Merkle DAG存储结构，改善了重复数据删除在跨数据中心迁移虚拟机镜像时的缺陷。与现有方法相比，该文方法缩短了总迁移时间。
|
| 关 键 词： | 云计算 虚拟机实时迁移 跨数据中心 哈希图 重复数据删除 3层镜像结构 |
| 收稿时间： | 2019-03-29 |
The Method of Virtual Machine Live Migration Based on HashGraph |
| |
| Junfeng TIAN,Xueqing QU,Xinfeng HE,Zhen LI.The Method of Virtual Machine Live Migration Based on HashGraph[J].Journal of Electronics & Information Technology,2020,42(3):712-719. |
| |
| Authors: | Junfeng TIAN Xueqing QU Xinfeng HE Zhen LI |
| |
| Affiliation: | School of Cyber Security and Computer, Hebei University, Baoding 071002, China |
| |
| Abstract: | Live migration of Virtual Machines(VMs) across WANs is an important support for multi-datacenter cloud computing environments. The current live migration of VMs across WANs faces many technical challenges due to the limitations of small bandwidth and no shared storage, such as ensuring the security and consistency of image data migration. Therefore, a method for VM live migration across data centers based on HashGraph is proposed in this paper, decentralized ideas are used to achieve reliable and efficient image distribution between data centers. The Merkle DAG of HashGraph improves the deficiencies of deduplication when migrating images across data centers. Compared with existing methods, it can reduce total migration time. |
| |
| Keywords: | |
|
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
