Virtual cloud fault-tolerant resource supply method

A virtual cloud and resource technology, applied in the field of cloud computing, to achieve the effect of improving schedulability

Active Publication Date: 2015-10-28
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] In view of the lack of a fault-tolerant resource supply method in the cloud computing environment in the prior art, the purpose of the present invention is to propose a fault-tolerant resource supply method in a virtualized cloud, which can use the PB model to perform resource supply for fault-tolerant tasks in a cloud computing environment. Improve resource utilization and schedulability of fault-tolerant tasks

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Embodiment Construction

[0057] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be further clearly, completely and detailedly described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0058] According to an embodiment of the present invention, a method for supplying fault-tolerant resources in a virtualized cloud is provided.

[0059] Such as figure 1 As shown, a method for supplying fault-tolerant resources in a virtualized cloud according to an embodiment of the present invention includes:

[0060] Step S101, obtaining the information of the ...

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Abstract

The invention discloses a virtual cloud fault-tolerant resource supply method. The method is characterized by comprising the following steps of: acquiring arrived dependent task group information and virtual cloud physical host information; building a primary version and a backup version of each task in a dependent task group by using a primary-backup (PB) model; allocating earliest start time and latest finish time to each version of each task in the dependent task group; dividing a plurality of virtual machines on each activated physical host, and acquiring information of each virtual machine on each activated physical host; loading each version of each task in the dependent task group onto each virtual machine on each activated physical at a specified time slot; running each loaded version of each task in the dependent task group according to the specified time, and adjusting the resource utilization rate of a system by using a resource extension mechanism and a resource contraction mechanism; and finishing all tasks in the dependent task group and returning a task result.

Description

technical field [0001] The invention relates to the field of cloud computing, in particular to a method for supplying fault-tolerant resources in a virtualized cloud. Background technique [0002] Due to the unpredictability of computer system errors, it is very important to add support for fault tolerance when designing scheduling algorithms. Fault-tolerant scheduling algorithms can be roughly divided into two categories, namely static fault-tolerant scheduling and dynamic fault-tolerant scheduling: static fault-tolerant scheduling makes scheduling decisions before task submission, and is usually used to schedule periodic tasks; dynamic fault-tolerant scheduling is usually used to schedule non-periodic tasks , whose task arrival time is uncertain. [0003] At present, there are two main fault-tolerant scheduling methods in the distributed computing environment, namely, resubmission and replication. Resubmission means that when the computing node to which a task is assigne...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/50G06F9/455G06F11/14
Inventor 朱晓敏包卫东刘忠王吉纪浩然肖文华陈超
Owner NAT UNIV OF DEFENSE TECH
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