US 2009/0006526 A1Published application

Autonomic control of a distributed computing system using finite state machines

AssigneeCassatt Corporation

InventorsRobert A. Gingell, JR., James D. Engquist, David A. Henseler, Jerry R. Jackson, Michael John Lamb, Sanjay Radia

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Abstract

In general, this disclosure describes techniques of managing resources in a service-oriented distributed computing system. As described in this disclosure, one or more control nodes provide for the efficient and automated allocation and management of resources within the distributed computing system. In order to provide automated allocation and management of computing functions and resources, a control node uses a set of governors. This set of governors includes a set of service governors to govern services used in the distributed computing system. The set of governors also includes a set of resource governors that govern individual resources of the services in the distributed computing system. The service governors and the resource governors may be implemented using finite state machines.

Claims37

Dependent claims

A distributed computing system comprising:

a first set of resources, wherein resources in the first set of resources are capable of providing a flux service, wherein a service is a defined set of functionality;
a second set of resources, wherein resources in the second set of resources are capable of providing interpreting services;
and
a control node that autonomically controls the distributed computing system, wherein the control node comprises:
a first set of resource governors, each of which implement a finite state machine that governs a process by which an individual one of the resources in the first set of resources starts providing or stops providing the flux service;
a first service governor, wherein the first service governor implements a finite state machine that controls whether resource governors in the first set of resource governors initiate the processes by which resources in the first set of resources start providing or stop providing the flux service;
and
a service-level agreement (SLA) governor that receives monitoring data that indicate a current service level of the flux service provided by the distributed computing system and causes the first service governor to enhance the service level of the flux service when the current service level of the flux service does not satisfy a service-level agreement.

5 more elements

A method of controlling a distributed computing system, the method comprising:

receiving, with a control node of the distributed computing system, input that defines a service-level agreement;
receiving status data from resources that provide services in the distributed computing system, wherein a service is a defined set of functionality;
using the status data to determine whether a current service level of a flux service provided by the distributed computer system satisfies the service-level agreement;
initiating, when a finite state machine of first service governor is in a first state and when the current service level of a flux service does not satisfy the service-level agreement, a process of a first resource governor by which a first resource in a first set of resources starts providing the flux service, wherein each resource in the first set of resource is capable of providing the flux service;
and
controlling, with a finite state machine of the first resource governor, the process by which a first resource in the first set of resources starts providing the flux service.

3 more elements

Dependencies are inferred from the claim text.