SELECTION OF TRANSACTION MANAGERS BASED ON TRANSACTION METADATA

• US 20100146509A1
• Filed: 12/10/2008
• Published: 06/10/2010
• Est. Priority Date: 12/10/2008
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Kaczynski, Timothy D., Mezarina, Edward E., Sykes, Matthew J.
• Granted Patent: US 8,276,141 B2
• Time in Patent Office: Days
• US Class Current: 718/101
• CPC Class Codes: G06F 9/466 Transaction processing
• CPC Class Codes: G06F 9/5055 considering software capabilities, i.e. software resources associated or available to the machine

Abstract

One or more transaction managers are automatically selected from a plurality of transaction managers for use in processing a transaction. The selection is based on types of resources used by the transaction and supported resource types of the transaction managers. The selection of the one or more transaction managers enables less than all of the transaction managers of an application server to be used in transaction commit processing, thereby improving performance.

Claims

1. A method of facilitating selection of transaction managers for use in transactional processing, said method comprising:

determining, by a component of a transactional environment, one or more resource types to be used by a transaction executing within the transactional environment, wherein the transactional environment includes a plurality of transaction managers, each transaction manager of the plurality of transaction managers supporting one or more resource types, wherein at least one transaction manager of the plurality of transaction managers supports a resource type not supported by at least one other transaction manager of the plurality of transaction managers; and

selecting by the component one or more transaction managers from the plurality of transaction managers to use in completing the transaction, wherein the selecting is based on the determined one or more resource types being used by the transaction.

2. The method of claim 1, further comprising assigning one or more resource types to each of the transaction managers.

3. The method of claim 2, wherein the assigning a resource type to a transaction manager comprises assigning a weight to the resource type for the transaction manager, said weight being based on performance of the transaction manager for that resource type.

4. The method of claim 2, wherein the assigning a resource type to a transaction manager comprises providing an indicator to indicate whether the resource type is supported by the transaction manager.

5. The method of claim 1, wherein the transactional component comprises an application server of the transactional environment.

6. The method of claim 5, wherein the application server comprises two transaction managers, including a Type 2 transaction manager supporting Type 2 resources and a Type 4 transaction manager supporting Type 4 resources.

7. The method of claim 1, wherein the selecting selects one transaction manager, and wherein the method further comprises determining whether there is only one resource to be committed, wherein a one phase commit is performed, in response to the determining indicating there is only one resource to be committed.

8. The method of claim 7, wherein a two phase commit is performed using the one selected transaction manager, in response to the determining indicating there is more than one resource to be committed.

9. The method of claim 1, wherein completing the transaction comprises performing one of a commit or a rollback.

10. The method of claim 1, wherein the selecting a transaction manager of the one or more transaction managers comprises choosing the transaction manager from a list of transaction managers supporting at least one resource type of the one or more resource types.

11. The method of claim 1, wherein the selecting a transaction manager of the one or more transaction managers comprises using one or more weights assigned to one or more resource types supported by the transaction manager to make the selection.

12. A system of facilitating selection of transaction managers for use in transactional processing, said system comprising:

at least one processor of a transactional environment to perform a method, said method comprising;

determining, by a component of the at least one processor, one or more resource types to be used by a transaction executing within the transactional environment, wherein the transactional environment includes a plurality of transaction managers, each transaction manager of the plurality of transaction managers supporting one or more resource types, wherein at least one transaction manager of the plurality of transaction managers supports a resource type not supported by at least one other transaction manager of the plurality of transaction managers; and

selecting by the component one or more transaction managers from the plurality of transaction managers to use in completing the transaction, wherein the selecting is based on the determined one or more resource types being used by the transaction.

13. The system of claim 12, wherein the method further comprises assigning one or more resource types to each of the transaction managers.

14. The system of claim 12, wherein the selecting selects one transaction manager, and wherein the method further comprises determining whether there is only one resource to be committed, wherein a one phase commit is performed, in response to the determining indicating there is only one resource to be committed.

15. The system of claim 12, wherein the selecting a transaction manager of the one or more transaction managers comprises choosing the transaction manager from a list of transaction managers supporting at least one resource type of the one or more resource types.

16. The system of claim 12, wherein the selecting a transaction manager of the one or more transaction managers comprises using one or more weights assigned to one or more resource types supported by the transaction manager to make the selection.

17. An article of manufacture comprising:

at least one computer readable medium having computer readable program code logic to facilitate selection of transaction managers for use in transactional processing, said computer readable program code logic when executing performing the following;

determining, by a component of a transactional environment, one or more resource types to be used by a transaction executing within the transactional environment, wherein the transactional environment includes a plurality of transaction managers, each transaction manager of the plurality of transaction managers supporting one or more resource types, wherein at least one transaction manager of the plurality of transaction managers supports a resource type not supported by at least one other transaction manager of the plurality of transaction managers; and

selecting by the component one or more transaction managers from the plurality of transaction managers to use in completing the transaction, wherein the selecting is based on the determined one or more resource types being used by the transaction.

18. The article of manufacture of claim 17, further comprising assigning one or more resource types to each of the transaction managers.

19. The article of manufacture of claim 17, wherein the selecting a transaction manager of the one or more transaction managers comprises choosing the transaction manager from a list of transaction managers supporting at least one resource type of the one or more resource types.

20. The article of manufacture of claim 17, wherein the selecting a transaction manager of the one or more transaction managers comprises using one or more weights assigned to one or more resource types supported by the transaction manager to make the selection.