Remote dynamic configuration of a web server to facilitate capacity on demand

• US 7,930,397 B2
• Filed: 08/29/2003
• Issued: 04/19/2011
• Est. Priority Date: 09/07/2002
• Status: Active Grant

• Current Assignee: Kyndryl Incorporated
• Original Assignee: International Business Machines Corporation
• Inventors: Midgley, Nicholas James
• Primary Examiner(s): Pwu; Jeffrey
• Assistant Examiner(s): Taha; Shaq
• Application Number:
  US10/526,810
• Publication Number:
  US 20060168224A1
• Time in Patent Office: 2,790 Days
• Field of Search: 709/201, 709/226, 709/232, 709/234, 709/238, 713/150, 713/168, 718/1, 718/105
• US Class Current: 709/226
• CPC Class Codes: G06F 2209/501 Performance criteria
• CPC Class Codes: G06F 9/505 considering the load
• CPC Class Codes: H04L 41/082 the condition being updates or upgrades of network functionality
• CPC Class Codes: H04L 41/085 Retrieval of network configuration; Tracking network configuration history
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/1029 using data related to the state of servers by a load balancer
• CPC Class Codes: H04L 67/1031 Controlling of the operation of servers by a load balancer, e.g. adding or removing servers that serve requests
• CPC Class Codes: H04L 67/63 Routing a service request depending on the request content or context
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

The present invention relates to a method and system for the remote and dynamic configuration of a webserver to facilitate capacity on demand. The present invention provides a solution to the problem of the management and administration of one or more servers within an environment such as a server farm with regards to the rigid infrastructure and architecture of the servers due to the definition of roles the servers play in relation to the data the servers are publishing. A solution is provided in the form of autonomic modular computing components to allow a server to process a URL and the server to associate it with a remote data source without the need for a restart or manual intervention of the server and to allow the introduction of new services and or hardware resources by collating and analyzing performance data collected from the server to determine if the server is over or under utilized.

Claims

1. A method for allocating an additional real application server to an existing pool of real application servers, the pool including a first real application server having an application installed therein and communicating with a real data-source server to obtain application data from the data-source server, the additional application server having the application installed therein, the method comprising the steps of:

a real management server for the pool receiving performance data for the first real application server and performance data for the real data-source server;

the real management server, based on the performance data for the first real application server and the performance data for the real data-source server, automatically determining that the first real application server is functional but has reached a predetermined upper level of utilization, the performance data for the real data-source server indicating an amount of utilization of the real data-source server in providing application data to one or more of the real application servers in the pool, and in response to the determination that the first real application server is functional but has reached a predetermined upper level of utilization,

the real management server automatically identifying the additional real application server as having the application but not currently allocated to the pool, and

the real management server automatically selecting the real data-source server to provide application data to the additional real application server and automatically sending connection settings for the real data-source server to the additional real application server to configure the additional real application server to send subsequent requests for application data to the real data-source server.

2. The method set forth in claim 1 wherein:

in response to the step of the real management server automatically determining that the first real application server is functional but has reached a predetermined upper level of utilization, further comprising the step of the real management server automatically sending to the additional real application server, port settings for the real data-source server to communicate with the real data-source server to obtain application data from the real data-source server.

3. The method set forth in claim 1 further comprising the subsequent steps of:

based on subsequent performance data of the first real application server, the real management server determining that the first real application server is functional but under utilized such that the first real application server is no longer needed in the pool, and in response, the real management server automatically de-allocating the first real application server from the pool.

4. The method set forth in claim 1 wherein a multiplicity of copies of the application are installed in a respective multiplicity of the real application servers in the pool.

5. The method set forth in claim 1 wherein:

in response to the step of the real management server automatically determining that the first real application server is functional but has reached a predetermined upper level of utilization, further comprising the step of the real management server automatically sending to the additional real application server a description of an installation path for the real data-source server to support communication with the additional real application server.

6. A real management server for allocating an additional real application server to an existing pool of real application servers, the pool including a first real application server having an application installed therein and communicating with a real data-source server to obtain application data from the data-source server, the additional application server having the application installed therein, the real management server comprising:

a CPU, a computer readable memory and a computer readable storage media;

first program instructions to receive performance data for the first real application server and performance data for the real data-source server;

second program instructions, based on the performance data for the first real application server and the performance data for the real data-source server, to determine that the first real application server is functional but has reached a predetermined upper level of utilization, the performance data for the real data-source server indicating an amount of utilization of the real data-source server in providing application data to one or more of the real application servers in the pool, and in response to the determination that the first real application server is functional but has reached a predetermined upper level of utilization,

the second program instructions identify the additional real application server as having the application but not currently allocated to the pool, and

the second program instructions select the real data-source server to provide application data to the additional real application server and automatically send connection settings for the real data-source server to the additional real application server to configure the additional real application server to send subsequent requests for application data to the real data-source server; and

wherein

the first and second program instructions are stored on the computer readable storage media for execution by the CPU via the computer readable memory.

7. The real management server set forth in claim 6 wherein:

in response to the determination that the first real application server is functional but has reached a predetermined upper level of utilization, the second program instructions automatically send to the additional real application server, port settings for the real data-source server to communicate with the real data-source server to obtain application data from the real data-source server.

8. The real management server set forth in claim 6 wherein:

the second program instructions, based on subsequent performance data of the first real application server, determine that the first real application server is functional but under utilized such that the first real application server is no longer needed in the pool, and in response, the second program instructions automatically de-allocate the first real application server from the pool.

9. The real management server set forth in claim 6 wherein a multiplicity of copies of the application are installed in a respective multiplicity of the real application servers in the pool.

10. The real management server set forth in claim 6 wherein:

the second program instructions, responsive to the determination that the first real application server is functional but has reached a predetermined upper level of utilization, automatically send to the additional real application server a description of an installation path for the real data-source server to support communication with the additional real application server.

11. A computer program product for execution in a real management server for allocating an additional real application server to an existing pool of real application servers, the pool including a first real application server having an application installed therein and communicating with a real data-source server to obtain application data from the data-source server, the additional application server having the application installed therein, the computer program product comprising:

a computer readable storage media;

first program instructions to receive performance data for the first real application server and performance data for the real data-source server;

second program instructions, based on the performance data for the first real application server and the performance data for the real data-source server, to determine that the first real application server is functional but has reached a predetermined upper level of utilization, the performance data for the real data-source server indicating an amount of utilization of the real data-source server in providing application data to one or more of the real application servers in the pool, and in response to the determination that the first real application server is functional but has reached a predetermined upper level of utilization,

the second program instructions identify the additional real application server as having the application but not currently allocated to the pool, and

the second program instructions select the real data-source server to provide application data to the additional real application server and automatically send connection settings for the real data-source server to the additional real application server to configure the additional real application server to send subsequent requests for application data to the real data-source server; and

wherein

the first and second program instructions are stored on the computer readable storage media.

12. The computer program product set forth in claim 11 wherein:

in response to the determination that the first real application server is functional but has reached a predetermined upper level of utilization, the second program instructions automatically send to the additional real application server, port settings for the real data-source server to communicate with the real data-source server to obtain application data from the real data-source server.

13. The computer program product set forth in claim 11 wherein:

the second program instructions, based on subsequent performance data of the first real application server, determine that the first real application server is functional but under utilized such that the first real application server is no longer needed in the pool, and in response, the second program instructions automatically de-allocate the first real application server from the pool.

14. The computer program product set forth in claim 11 wherein a multiplicity of copies of the application are installed in a respective multiplicity of the real application servers in the pool.

15. The computer program product set forth in claim 11 wherein:

the second program instructions, responsive to the determination that the first real application server is functional but has reached a predetermined upper level of utilization, automatically send to the additional real application server a description of an installation path for the real data-source server to support communication with the additional real application server.