Connection Pool Use of Runtime Load Balancing Service Performance Advisories

• US 20110055368A1
• Filed: 11/03/2010
• Published: 03/03/2011
• Est. Priority Date: 08/14/2003
• Status: Active Grant

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: Oracle International Corporation (Oracle Corporation)
• Inventors: Colrain, Carol L., Surber, Douglas N., Irudayaraj, Rajkumar A.
• Granted Patent: US 8,626,890 B2
• Time in Patent Office: Days
• US Class Current: 709/223
• CPC Class Codes: G06F 2209/508 Monitor
• CPC Class Codes: G06F 9/505 considering the load
• CPC Class Codes: G06F 9/5083 Techniques for rebalancing the load in a distributed system

Abstract

Runtime connection load balancing of work across connections to a clustered computing system involves the routing of requests for a service, based on the current operational performance of each of the instances that offer the service. A connection is selected from an identified connection pool, to connect to an instance that provides the service for routing a work request. The operational performance of the instances may be represented by performance information that characterizes the response time and/or the throughput of the service that is provided by a particular instance on a respective node of the system, and is relative to other instances that offer the same service.

Claims

1. A computer-implemented method for managing connections to a computing system that comprises a plurality of computing nodes that each hosts a server instance that provides a service that performs work, the method comprising:

periodically gravitating connections to server instances, from a plurality of server instances executing on said plurality of computing nodes, that are performing well relative to other server instances from said plurality of server instances; and

wherein said gravitating is based on service performance information for instances that offer said service that is associated with connections being gravitated;

wherein the method is performed by one or more computing devices.

2. The method of claim 1, further comprising:

in response to a request for a connection to said computing system for requesting said service, selecting a connection that is associated with said service, to route a request for performance of work associated with said service;

wherein said selecting is based on substantially current performance information for said instances that offer said service that is associated with said selected connection.

3. A non-transitory machine-readable storage medium storing one or more sequences of instructions which, when executed by one or more processors, causes the one or more processors to perform:

periodically gravitating connections to server instances, from a plurality of server instances executing on said plurality of computing nodes, that are performing well relative to other server instances from said plurality of server instances; and

wherein said gravitating is based on service performance information for instances that offer said service that is associated with connections being gravitated.

4. The non-transitory machine-readable storage medium of claim 3, said instructions further comprising instructions which, when executed by one or more processors, causes the one or more processors to perform:

in response to a request for a connection to said computing system for requesting said service, selecting a connection that is associated with said service, to route a request for performance of work associated with said service;

wherein said selecting is based on substantially current performance information for said instances that offer said service that is associated with said selected connection.