METHOD AND SYSTEM FOR MANAGING RESOURCE CONNECTIONS

• US 20080250419A1
• Filed: 04/07/2008
• Published: 10/09/2008
• Est. Priority Date: 04/05/2007
• Status: Active Grant

• Current Assignee: PayPal, Inc. (PayPal Holdings, Inc.)
• Original Assignee: eBay Inc.
• Inventors: Kasten, Christopher J., Chernyshev, Igor
• Granted Patent: US 8,413,156 B2
• Time in Patent Office: Days
• US Class Current: 718/104
• CPC Class Codes: G06F 13/00 Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units interface circuits for specific input/output devices G06F3/00 ; multiprogram control therefor G06F9/46; multiprocessor systems G06F15/16
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/60 Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources admission control or resource allocation H04L47/70
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols

Abstract

Methods and system for managing resource connections are described. In one embodiment, a user request associated with a centralized resource may be received. Availability of a connection to the centralized resource may be determined. A stagger delay for connection creation may be determined. The stagger delay may define a delay for creation of a new connection. The new connection to the centralized resource may be created based on the determining of whether the connection to the centralized resource is available and the delay interval. The new connection may be utilized to process the user request.

Claims

1. A method comprising:

receiving a user request associated with a centralized resource;

determining availability of a connection to the centralized resource;

determining a stagger delay for connection creation, the stagger delay defining a delay for creation of a new connection;

creating the new connection to the centralized resource based on to the determining availability of the connection and the stagger delay; and

utilizing the new connection to process the user request.

2. The method of claim 1, further comprising:

calculating a number of requests placed on a waiter queue during a time period,

determining whether the number of requests placed on the waiter queue during the time period exceeds a threshold,

wherein the creating of the new connection is based on whether the threshold is exceeded.

3. The method of claim 1, further comprising:

calculating a number of waiter timeouts during a time period; and

determining whether the number of waiter timeouts exceeds a request threshold,

wherein the creating of the new connection is based on whether the waiter timeout threshold is exceeded.

4. The method of claim 1, further comprising:

determining a last creation time of a previous new connection,

wherein the determination of the stagger delay is based on the determining of the last creation time.

5. The method of claim 1, further comprising:

receiving an additional user request associated with the centralized resource;

creating an additional new connection from a particular application to the centralized resource based on a throttle delay,

wherein the creating of the new connection is from the particular application to the centralized resource.

6. The method of claim 5, wherein the throttle delay includes a same amount of time as the stagger delay.

7. The method of claim 1, further comprising:

receiving an additional user request associated with the centralized resource;

determining availability of an existing connection to the centralized resource; and

utilizing the existing connection to process the additional user request based on the availability of the existing connection.

8. The method of claim 1, further comprising:

receiving a plurality of initial user requests associated with the centralized resource;

creating a plurality of initial connections based on the receiving of the plurality of initial user requests until a steady state is achieved, a particular initial connection being created to enable utilization of a particular initial user request.

9. The method of claim 1, wherein the determining of the stagger delay comprises:

generating a random or pseudo-random number from a stagger interval range; and

selecting a generated number as the stagger delay.

10. The method of claim 1, further comprising:

adding the new connection to a connection pool, the user request capable of being fulfilled with the new connection.

11. The method of claim 1, further comprising:

providing the new connection to an application.

12. The method of claim 1, further comprising:

receiving a plurality of different user requests, a particular different user request of the plurality of different user requests received from a different application, the plurality of user request being associated with a centralized resource;

determining availability of a plurality of available connections to the centralized resource;

determining an additional stagger delay for connection creation for a particular different user request, the additional stagger interval defining the delay for creation of an additional new connection; and

creating the additional new connection to the centralized resource based on the stagger interval.

13. The method of claim 1, further comprising:

receiving an additional user request from an application; and

creating an additional new connection from the application to the centralized resource based on a throttle delay.

14. The method of claim 1, wherein the centralized resource is a database.

15. A machine-readable medium comprising instructions, which when implemented by one or more processors perform the following operations:

receive a user request associated with a centralized resource;

determine availability of a connection to the centralized resource;

determine a stagger delay for connection creation, the stagger interval defining a delay for creation of a new connection;

create the new connection to the centralized resource based on the determining of whether the connection to the centralized resource is available and the stagger interval; and

utilize the new connection to process the user request.

16. The machine-readable medium of claim 15 further comprising instructions, which when implemented by one or more processors perform the following operations:

receive an additional user request associated with the centralized resource;

create an additional new connection from a particular application to the centralized resource based on a throttle interval,

wherein creation of the additional new connection is from the particular application to the centralized resource.

17. The machine-readable medium of claim 15 further comprising instructions, which when implemented by one or more processors perform the following operations:

calculate a number of requests placed on a waiter queue during a time period,

determine whether the number of requests placed on the waiter queue exceeds a creation threshold,

wherein a determination of the stagger interval is based on a determination of the number of requests.

18. A system comprising:

a user request receiver module to receive a user request associated with a centralized resource;

an availability determination module to determine availability of a connection to the centralized resource;

a stagger delay determination module to determine a stagger delay for connection creation, the stagger delay defining a delay for creation of a new connection;

a connection creation module to create the new connection to the centralized resource based on the determining of whether the connection to the centralized resource is available and the stagger interval; and

a connection utilization module to utilize the new connection to process the user request.

19. The system of claim 18, further comprising:

a call connection rate control authority module to call a connection rate control authority receive permission to create the new connection.

20. The system of claim 18, further comprising:

a waiter queue request calculation module to calculate a number of connection requests that waited an amount of time on a waiter queue over a time period, the calculated information usable to determine whether a significant amount of connection requests is waiting to receive a connection, the determination used to determine whether to request hew new connection.