Application server architecture

• US 20060282509A1
• Filed: 06/09/2005
• Published: 12/14/2006
• Est. Priority Date: 06/09/2005
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP AG (SAP SE)
• Inventors: Kilian, Frank, Rohland, Hans-Christoph
• Granted Patent: US 7,689,660 B2
• Time in Patent Office: Days
• US Class Current: 709/217
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
• CPC Class Codes: H04L 67/563 Data redirection of data network streams

Abstract

Embodiments of the invention are generally directed to a system and method for an application server architecture having a common connection manager for at least two heterogeneous application server software suites. One of the software suites is a standards-based application server software suite having a plurality of worker nodes. In one embodiment, the plurality of worker nodes share code and data that is stored in a shared memory.

Claims

1. A system comprising:

a connection manager to receive a request from a client, the connection manager including a dispatcher to select which one of at least two heterogeneous application server software suites to process the request and to dispatch the request to a selected software suite;

a standards-based application server software suite coupled with the connection manager, the standards-based application server software suite having a plurality of worker nodes each capable to receive and process the request from the client; and

a shared memory coupled with the plurality of worker nodes to store content that can be reached by the plurality of worker nodes.

2. The system of claim 1, wherein the shared memory is a shared closure based shared memory.

3. The system of claim 1, wherein the shared closure based shared memory is to store session objects having session state information for the plurality of worker nodes.

4. The system of claim 1, wherein the shared memory is a cache region to be shared by the plurality of worker nodes.

5. The system of claim 4, wherein the cache region to be shared by the plurality of worker nodes is a region of a shared closure based shared memory.

6. The system of claim 1, wherein the shared memory is a connection oriented shared memory.

7. The system of claim 6, wherein the connection oriented shared memory is based, at least in part, on the fast channel architecture.

8. The system of claim 7, wherein the connection oriented shared memory is a request/response shared memory, the request response shared memory coupled with the connection manager, the standards-based application server software suite and another application server software suite.

9. The system of claim 1, wherein the shared memory is a session table shared memory.

10. The system of claim 1, wherein the shared memory is to store shared class loaders, the shared class loaders accessible by the plurality of worker nodes.

11. The system of claim 1, wherein the shared memory is to store at least one of:

thread status information for the plurality of worker nodes; and

session status information for the plurality of worker nodes.

12. The system of claim 11, further comprising:

a monitoring console to obtain at least one of session status information and thread status information from the shared memory.

13. A method comprising:

receiving a request from a client at a connection manager;

transferring the request from the connection manager to a location in a connection oriented shared memory coupled between the connection manager and a standards-based software suite, the standards-based software suite having a plurality of worker nodes; and

receiving the request from the location at one of the plurality of worker nodes, the worker node to process the request.

14. The method of claim 13, wherein the request includes request data and transferring the request from the connection manager to the location in the connection oriented shared memory comprises:

reading the request data from a network layer interface into the connection oriented shared memory.

15. The method of claim 13, further comprising:

providing a cache from a shared closure based shared memory, wherein the cache is visible to the plurality of worker nodes.

16. The method of claim 13, further comprising:

generating status information for a thread assigned to a worker node; and

storing the status information in a shared memory that is visible to the plurality of worker nodes.

17. The method of claim 13, further comprising:

generating session context information for a session between a client and a worker node; and

storing the session status information in a shared memory that is visible to the plurality of worker nodes.

18. An article of manufacturer comprising an electronically accessible medium providing instructions that, when executed by an apparatus, cause the apparatus to:

receive a request from a client at a connection manager;

transfer the request from the connection manager to a location in a connection oriented shared memory coupled between the connection manager and a standards-based software suite, the standards-based software suite having a plurality of worker nodes; and

receive the request from the location at one of the plurality of worker nodes, the worker node to process the request.

19. The article of manufacture of claim 18, wherein the electronically accessible medium provides further instructions that, when executed by the apparatus, cause the apparatus to:

provide a cache from a shared closure based shared memory, wherein the cache is visible to the plurality of worker nodes.

20. The article of manufacture of claim 18, wherein the electronically accessible medium provides further instructions that, when executed by the apparatus, cause the apparatus to:

generate status information for a thread assigned to a worker node; and

store the status information in a shared memory that is visible to the plurality of worker nodes.