Performance of channels used in communicating between senders and receivers

• US 20020116435A1
• Filed: 02/22/2001
• Published: 08/22/2002
• Est. Priority Date: 02/22/2001
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Dryfoos, Robert O., Wang, Mei-Hui, Chen, Shawfu, Lewis, Peter A., Keenaghan, Jason A., Sutton, Peter G., Feldman, Allan, Hu, David Y., Williams-Obleton, Alice M.
• Granted Patent: US 7,140,017 B2
• Time in Patent Office: Days
• US Class Current: 718/100
• CPC Class Codes: G06F 2209/548 Queue
• CPC Class Codes: G06F 9/546 Message passing systems or structures, e.g. queues

Abstract

A plurality of batch lists are maintained by a channel in order to improve the efficiency of the channel in performing messaging between a sender and a receiver. For example, a Next Batch list is used to prefetch messages to be sent to the receiver from the sender; a Current Batch list includes the messages currently being transmitted to the receiver or waiting confirmation; and an Acknowledged Batch List includes the messages confirmed by the receiver. This allows the functions of prefetching messages, sending messages and deleting confirmed messages to be performed in parallel.

Claims

1. A method of performing messaging using a channel coupled to a sender and a receiver, said method comprising:

transmitting from said sender to said receiver via said channel a batch of one or more messages; and

prefetching, during said transmitting, another batch of one or more messages to be transmitted.

2. The method of claim 1, further comprising deleting, during said transmitting, a previously sent batch of one or more messages from a transmission queue.

3. The method of claim 2, wherein said batch of one or more messages being transmitted, said another batch of one or more messages being prefetched, and said previously sent batch of one or more messages have corresponding batch numbers assigned thereto.

4. The method of claim 1, wherein said transmitting comprises retrieving said batch of one or more messages from a transmission queue, and forwarding said batch of one or more messages to one or more destination queues of said receiver.

5. The method of claim 1, wherein said prefetching comprises assigning a batch number to said another batch of one or more messages.

6. The method of claim 1, further comprising deleting said batch of one or more messages from a transmission queue, subsequent to said receiver acknowledging receipt of said batch of one or more messages.

7. The method of claim 1, wherein said channel comprises a sender channel.

8. The method of claim 7, wherein said channel comprises an MQSeries sender channel.

9. A method of performing messaging using a channel coupled to a sender and a receiver, said method comprising:

assigning one or more messages of a transmission queue to a next batch list;

deleting one or more messages of an acknowledged batch list from the transmission queue, if said one or more messages of said acknowledged batch list exist; and

transmitting a current batch list of one or more messages from the sender to the receiver, wherein the assigning, deleting and transmitting are performed substantially in parallel.

10. The method of claim 9, further comprising changing the current batch list to the acknowledged batch list and the next batch list to the current batch list, and repeating said assigning, deleting and transmitting, wherein the next batch list overwrites the acknowledged batch list from which one or more messages were deleted.

11. The method of claim 9, wherein said next batch list, said acknowledged batch list and said current batch list have corresponding batch numbers assigned thereto.

12. The method of claim 9, wherein said channel comprises a sender channel.

13. The method of claim 12, wherein said channel comprises an MQSeries sender channel.

15. The system of claim 14, further comprising means for deleting, during the transmitting, a previously sent batch of one or more messages from a transmission queue.

16. The system of claim 15, wherein said batch of one or more messages being transmitted, said another batch of one or more messages being prefetched, and said previously sent batch of one or more messages have corresponding batch numbers assigned thereto.

17. The system of claim 14, wherein said means for transmitting comprises means for retrieving said batch of one or more messages from a transmission queue, and means for forwarding said batch of one or more messages to one or more destination queues of said receiver.

18. The system of claim 14, wherein said means for prefetching comprises means for assigning a batch number to said another batch of one or more messages.

19. The system of claim 14, further comprising means for deleting said batch of one or more messages from a transmission queue, subsequent to said receiver acknowledging receipt of said batch of one or more messages.

20. The system of claim 14, wherein said channel comprises a sender channel.

21. The system of claim 20, wherein said channel comprises an MQSeries sender channel.

14. A system of performing messaging using a channel coupled to a sender and a receiver, said system comprising:

means for transmitting from said sender to said receiver via said channel a batch of one or more messages; and

means for prefetching, during the transmitting, another batch of one or more messages to be transmitted.

22. A system of performing messaging using a channel coupled to a sender and a receiver, said system comprising:

means for assigning one or more messages of a transmission queue to a next batch list;

means for deleting one or more messages of an acknowledged batch list from the transmission queue, if said one or more messages of said acknowledged batch list exist; and

means for transmitting a current batch list of one or more messages from the sender to the receiver, wherein the assigning, deleting and transmitting are performed substantially in parallel.

23. The system of claim 22, further comprising means for changing the current batch list to the acknowledged batch list and the next batch list to the current batch list, and means for repeating the assigning, deleting and transmitting, wherein the next batch list overwrites the acknowledged batch list from which one or more messages were deleted.

24. The system of claim 22, wherein said next batch list, said acknowledged batch list and said current batch list have corresponding batch numbers assigned thereto.

25. The system of claim 22, wherein said channel comprises a sender channel.

26. The system of claim 25, wherein said channel comprises an MQSeries sender channel.

30. The at least one program storage device of claim 29, wherein said method further comprises deleting, during said transmitting, a previously sent batch of one or more messages from a transmission queue.

31. The at least one program storage device of claim 30, wherein said batch of one or more messages being transmitted, said another batch of one or more messages being prefetched, and said previously sent batch of one or more messages have corresponding batch numbers assigned thereto.

32. The at least one program storage device of claim 29, wherein said transmitting comprises retrieving said batch of one or more messages from a transmission queue, and forwarding said batch of one or more messages to one or more destination queues of said receiver.

33. The at least one program storage device of claim 29, wherein said prefetching comprises assigning a batch number to said another batch of one or more messages.

34. The at least one program storage device of claim 29, wherein said method further comprises deleting said batch of one or more messages from a transmission queue, subsequent to said receiver acknowledging receipt of said batch of one or more messages.

35. The at least one program storage device of claim 29, wherein said channel comprises a sender channel.

36. The at least one program storage device of claim 35, wherein said channel comprises an MQSeries sender channel.

38. The at least one program storage device of claim 37, wherein said method further comprises changing the current batch list to the acknowledged batch list and the next batch list to the current batch list, and repeating said assigning, deleting and transmitting, wherein the next batch list overwrites the acknowledged batch list from which one or more messages were deleted.

39. The at least one program storage device of claim 37, wherein said next batch list, said acknowledged batch list and said current batch list have corresponding batch numbers assigned thereto.

40. The at least one program storage device of claim 37, wherein said channel comprises a sender channel.

41. The at least one program storage device of claim 40, wherein said channel comprises an MQSeries sender channel.

27. A system of performing messaging between a sender and a receiver, said system comprising:

a channel coupled to the sender and the receiver adapted to transmit from said sender to said receiver a batch of one or more messages; and

said channel being further adapted to prefetch, during said transmitting, another batch of one or more messages to be transmitted.

28. A system of performing messaging between a sender and a receiver, said system comprising:

a transmission queue having one or more messages being assigned to a next batch list;

a channel coupled to said sender and receiver adapted to delete one or more messages of an acknowledged batch list from the transmission queue, if said one or more messages of said acknowledged batch list exist; and

said channel being further adapted to transmit a current batch list of one or more messages from the sender to the receiver, wherein the assigning, deleting and transmitting are performed substantially in parallel.

29. At least one program storage device readable by a machine, tangibly embodying at least one program of instructions executable by the machine to perform a method of performing messaging using a channel coupled to a sender and a receiver, said method comprising:

transmitting from said sender to said receiver via said channel a batch of one or more messages; and

prefetching, during said transmitting, another batch of one or more messages to be transmitted.

37. At least one program storage device readable by a machine, tangibly embodying at least one program of instructions executable by the machine to perform a method of performing messaging using a channel coupled to a sender and a receiver, said method comprising:

assigning one or more messages of a transmission queue to a next batch list;

deleting one or more messages of an acknowledged batch list from the transmission queue, if said one or more messages of said acknowledged batch list exist; and

transmitting a current batch list of one or more messages from the sender to the receiver, wherein the assigning, deleting and transmitting are performed substantially in parallel.