基于KVM的虚拟机Post-Copy动态迁移算法稳定性优化

doi:10.11959/j.issn.1000-0801.2021145

Telecommunications Science ›› 2021, Vol. 37 ›› Issue (7): 57-66.doi: 10.11959/j.issn.1000-0801.2021145

• Research and Development • Previous Articles Next Articles

Stability optimization of dynamic migration algorithm for Post-Copy of virtual machine based on KVM

Shuangxi CHEN¹^,²^,³, Ruoyan ZHAO¹, Hui LIU², Chunming WU¹, Wei RUAN¹

¹ Zhejiang University, Hangzhou 310058, China
² Jiaxing Vocational Technical College, Jiaxing 314036, China
³ Jiaxing Key Laboratory of Industrial Internet, Jiaxing 314036, China

Revised:2021-06-08 Online:2021-07-20 Published:2021-07-01
Supported by:
The National Key Research and Development Program(2018YFB2100400);Zhejiang Public Welfare Technol-ogy Research Project(LGF20F020003);Zhejiang Key Research and Development Program(2020C01077);Zhejiang Key Research and Development Program(2021C01036);Zhejiang Key Research and Development Program(2020C01021);Zhijiang Laboratory Major Scientific Research Project(2018FD0ZX01)

Abstract

Abstract:

The dynamic migration technology of virtual machine provides a strong support for the resource scheduling of virtualization system.As one of the two core algorithms of virtual machine dynamic migration, Post-Copy algorithm has been a hot issue for scholars at home and abroad for its advantages of stable migration time and short migration downtime.The fault tolerance mechanism of virtual machine, the connection between the transfer mode of memory page and the page missing error during the migration process, and the source code of QEMU-KVM platform were studied.A fault tolerant method based on transaction synchronization was proposed to improve the stability of the Post-Copy migration algorithm.The experimental results show that the proposed algorithm can ensure the fast repair of deep end virtual machine failure, target virtual machine failure and network fault during the migration process, and solve the stability problem at a small cost.The method proposed effectively improves the stability of the Post-Copy migration algorithm, and provides reference for the future optimization research direction.

Key words: dynamic migration of virtual machine, Post-Copy, fault tolerance, QEMU-KVM

CLC Number:

TP393

Shuangxi CHEN, Ruoyan ZHAO, Hui LIU, Chunming WU, Wei RUAN. Stability optimization of dynamic migration algorithm for Post-Copy of virtual machine based on KVM[J]. Telecommunications Science, 2021, 37(7): 57-66.

Figures/Tables 10

References 16

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