CONTROLLING PERSISTING OF DATA TO DISK

• US 20140078876A1
• Filed: 07/10/2013
• Published: 03/20/2014
• Est. Priority Date: 09/14/2012
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Granshaw, David, Massey, Samuel T., McGinnes, Daniel J., Ross, Martin A., Schofield, Richard G., Stirling, Craig H.
• Granted Patent: US 9,524,747 B2
• Time in Patent Office: Days
• US Class Current: 369/47.15
• CPC Class Codes: G06F 2209/547 Messaging middleware
• CPC Class Codes: G06F 9/546 Message passing systems or structures, e.g. queues
• CPC Class Codes: G11B 20/10 Digital recording or reproducing

Abstract

Embodiments relate to controlling persisting of data to disk for use with a messaging system including an application operable for generating and sending a message to a destination. An aspect is an apparatus, which includes a comparator operable to determine whether the message includes common data, and an extractor, responsive to a determination that the message includes common data, configured to extract the common data and non-common data from the message. The apparatus also includes a persistor operable to determine whether the common data have already been persisted to disk. The persistor is operable, in response to a determination that the common data have not already been persisted to disk, to separately persist the common data and the non-common data to disk. The persistor is operable, in response to a determination that the common data have already been persisted to disk, to persist the non-common data to disk.

Claims

1. An apparatus for controlling persisting of data to disk for use with a messaging system comprising an application operable for generating and sending a message to a destination, the apparatus comprising:

a comparator operable to determine whether the message comprises common data;

an extractor, responsive to a determination that the message comprises common data, configured to extract the common data and non-common data from the message; and

a persistor operable to determine whether the common data have already been persisted to disk, wherein the persistor is operable, in response to a determination that the common data have not already been persisted to disk, to separately persist the common data and the non-common data to disk and wherein the persistor is operable, in response to a determination that the common data have already been persisted to disk, to persist the non-common data to disk.

2. The apparatus of claim 1 wherein the comparator is pre-configurable to determine that a structure associated with the message comprises common data.

3. The apparatus of claim 1 wherein the comparator is operable to determine an overhead associated with extracting the common data and non-common data from the message in accordance with one or more rules.

4. The apparatus of claim 1 wherein the persistor is operable to use a unique reference associated with the common data to query a data store in order to determine whether the common data have already been persisted.

5. The apparatus of claim 1 wherein the persistor, responsive to a determination that the message does not comprise common data, is operable to persist the message to disk.

6. The apparatus of claim 1 wherein the comparator is operable to parse a set of messages generated by the application and match data associated with the messages in order to determine whether the message comprises common data.

7. The apparatus of claim 1 wherein the message is associated with a scope.

8. The apparatus of claim 1 wherein in response to another application requesting the message from the destination, the persistor is operable to reconstruct the message by appending the separately persisted common data and non-common data.

9. A method for controlling persisting of data to disk for use with a messaging system comprising an application operable for generating and sending a message to a destination, the method comprising:

determining whether the message comprises common data;

extracting, in response to a determination that the message comprises common data, the common data and non-common data from the message;

determining whether the common data have already been persisted to disk;

separately persisting, in response to a determination that the common data have not already been persisted to disk, the common data and the non-common data to disk; and

persisting, in response to a determination that the common data have already been persisted to disk, the non-common data to disk.

10. The method of claim 9 further comprising:

determining that a structure associated with the message comprises common data.

11. The method of claim 9 further comprising:

determining an overhead associated with extracting the common data and non-common data from the message in accordance with one or more rules.

12. The method of claim 9 further comprising:

using a unique reference associated with the common data to query a data store in order to determine whether the common data have already been persisted.

13. The method of claim 9 further comprising:

persisting, in response to a determination that the message does not comprise common data, the message to disk.

14. The method of claim 9 further comprising:

parsing a set of messages generated by the application and matching data associated with the messages in order to determine whether the message comprises common data.

15. The method of claim 9 wherein the message is associated with a scope.

16. The method of claim 9 further comprising:

reconstructing, in response to another application requesting the message from the destination, the message by appending the separately persisted common data and non-common data.

17. A computer program product for controlling persisting of data to disk for use with a messaging system comprising an application operable for generating and sending a message to a destination, the computer program product comprising:

a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising;

determining whether the message comprises common data;

extracting, in response to a determination that the message comprises common data, the common data and non-common data from the message;

determining whether the common data have already been persisted to disk;

separately persisting, in response to a determination that the common data have not already been persisted to disk, the common data and the non-common data to disk; and

persisting, in response to a determination that the common data have already been persisted to disk, the non-common data to disk.

18. The computer program product of claim 17 further comprising:

determining that a structure associated with the message comprises common data.

19. The computer program product of claim 17 further comprising:

determining an overhead associated with extracting the common data and non-common data from the message in accordance with one or more rules.

20. The computer program product of claim 17 further comprising:

using a unique reference associated with the common data to query a data store in order to determine whether the common data have already been persisted.