MULTI-TENANT RESOURCE COORDINATION METHOD

• US 20170019345A1
• Filed: 08/27/2014
• Published: 01/19/2017
• Est. Priority Date: 08/27/2014
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: YAMASAKI, Kenta, MORIMURA, Tomohiro, KUDOU, Yutaka, IWASAKI, Masaaki
• Granted Patent: US 10,333,859 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 9/46 Multiprogramming arrangements
• CPC Class Codes: G06F 9/50 Allocation of resources, e.g. of the central processing unit [CPU]
• CPC Class Codes: G06F 9/5005 to service a request
• CPC Class Codes: G06F 9/5072 Grid computing
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/131 Protocols for games, networked simulations or virtual reality
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services

Abstract

In a system, such as a cloud, which allows resource allocation to be flexibly changed in a multi-tenant environment, it is necessary to interchange resources between the tenants. Efficient resource coordination for resource allocation cannot be attained by merely adjusting resource allocation amounts or resource usage amounts. In order to address this problem, the present invention selects an optimum allocation method from among a plurality of resource allocation methods including CPU capping, taking into account each period for which resources must be allocated and the manner in which each tenant uses resources, and then coordinates allocation of resources across the entire system using the selected allocation method. This makes it possible to improve the efficiency of resource coordination even in a multi-tenant environment.

Claims

1. A coordination server that connects to a computer system forming a multi-tenant environment, comprising:

configuration information representing configurations of tenants involved in the multi-tenant environment;

usage status information representing usage status of each of the tenants; and

policy information including information on ways of allocating resources by resource usage scheme;

receiving from one of the tenants a resource allocation request including information on a requested quantity of resources to be allocated and the resource usage scheme;

referring to the configuration information, the usage status information, the policy information, and the resource allocation request and creating coordination information including tenants to offer resources, a quantity of resources to be offered by each of the tenants, and a way in which resources are offered by each of the tenants;

changing a quantity of resources which are allocated to each of the tenants, based on the coordination information; and

outputting a result of the changing.

2. The coordination server according to claim 1, wherein information on the resource usage scheme includes a time span of using resources requested by the tenant.

3. The coordination server according to claim 2, wherein the ways of allocating resources include removing a virtual computer that the tenant uses, shutting down the virtual computer, and decreasing a quantity of CPUs assigned to the virtual computer by capping.

4. The coordination server according to claim 3, wherein the way of allocating resources is decreasing a quantity of CPUs by capping if the time span of using resources is a short time, shutting down the virtual computer if the time span of using resources is a medium time, and removing the virtual machine if the time span of using resources is a long time.

5. The coordination server according to claim 1, wherein information on the resource usage scheme includes a way of using resource by the tenant.

6. The coordination server according to claim 5, wherein, if the way of using resource is an HA configuration, the coordination server creates the coordination information so that resources are allocated to both active and standby systems.

7. A resource coordination method for use in a computer system forming a multi-tenant environment and including a coordination server, the resource coordination method comprising:

a step of transmitting and receiving a resource allocation request including information on a requested quantity of resources to be allocated and a resource usage scheme from a tenant involved in the multi-tenant environment to the coordination server;

a step of referring to configuration information representing configurations of the tenants, usage status information representing usage status of the tenant, policy information including information on ways of allocating resources by the resource usage scheme, and the resource allocation request, and creating coordination information including tenants to offer resources, a quantity of resources to be offered by the tenants, and a way in which resources are offered by the tenants;

a step of changing a quantity of resources which are allocated to each of the tenants, based on the coordination information; and

a step of outputting a result of the changing from the coordination server.

8. The resource coordination method according to claim 7, wherein information on the resource usage scheme includes a time span of using resources requested by the tenant.

9. The resource coordination method according to claim 8, wherein the ways of allocating resources include removing a virtual computer that a tenant uses, shutting down the virtual computer, and decreasing a quantity of CPUs assigned to the virtual computer by capping.

10. The resource coordination method according to claim 9, wherein the way of allocating resources to be selected is decreasing a quantity of CPUs by capping if the time span of using resources is a short time, shutting down the virtual computer if the time span of using resources is a medium time, and removing the virtual machine if the time span of using resources is a long time.

11. The resource coordination method according to claim 7, wherein information on the resource usage scheme includes a way of using resource by the tenant.

12. The resource coordination method according to claim 11, wherein, if the way of resource is an HA configuration, the step of creating the coordination information further takes account of whether resources can be allocated to both active and standby systems.