Method for obtaining the state of network resources in a distributed computing environment by utilizing a provider associated with indicators of resource states

• US 5,781,736 A
• Filed: 04/30/1996
• Issued: 07/14/1998
• Est. Priority Date: 04/30/1996
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Schmidt, Michael Anthony
• Primary Examiner(s): Ellis, Richard L.
• Application Number:
  US08/640,306
• Time in Patent Office: 805 Days
• Field of Search: 395/200.1, 395/200.11, 395/200.5, 395/200.51, 395/200.52, 395/200.54
• US Class Current: 709/224
• CPC Class Codes: G06F 9/50 Allocation of resources, e.g. of the central processing unit [CPU]
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A method for processing a request for a state of a resource in a distributed processing environment may in general terms comprise receiving an identification of a resource, and identifying a provider associated with an indicator of states of the resource. The method may further comprise obtaining the state of the resource. The state may be obtained by observing the state in memory shared with the indicator, or by retrieving the state from memory in which the state is contained, or by requesting and receiving the state from a remote provider, depending upon the particular resource.

Claims

1. In a network of computers, a method for processing a request from a requester for a state of a prespecified network resource in a distributed computing environment, the method comprising:

receiving a request for a state of a resource, said request comprising an identifier of a prespecified network resource; and

identifying a provider associated with an indicator of states of said resource, said indicator indicating the states of said resource and said provider obtaining the states from said indicator and providing it to said requester, said states being provided to said requester irrespective or whether the resource has changed location in the network;

initiating the operation of said indicator such that said indicator places said state in a memory device shared with said provider so that it may be observed by said provider;

observing by said provider, said state in said shared memory device for obtaining a state of said resource from said indicator.

2. The method of claim 1, wherein said identifier indicates that said resource is of a prespecified resource type.

3. The method of claim 2, wherein identifying said provider comprises determining that providers associated with indicators of states of resources of said type are identified by identifiers of resources of said type.

4. The method of claim 1, wherein identifying said provider comprises determining said provider from a database which correlates resources with providers of states of resources.

5. The method of claim 1, wherein obtaining said state comprises said provider retrieving said state perildically at a predetermined rate from a memory device containing data representative of the state of said resource.

6. The method of claim 1, wherein obtaining said state comprises:

requesting from a first node in said distributed computing environment, said state from a provider of states associated with said indicator on a second node in said distributed computing environment, and receiving said state from said provider.

7. The method of claim 1, further comprising:

receiving from said requester via a client communications module, identification of said requester of said state; and

indicating to said requester via said client communications module, said state to said requester.