Mechanism for processing messages using logical addresses

• US 8,194,659 B2
• Filed: 10/06/2009
• Issued: 06/05/2012
• Est. Priority Date: 10/06/2009
• Status: Active Grant

• Current Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Original Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Inventors: Ban, Bela
• Primary Examiner(s): Ngo, Ricky
• Assistant Examiner(s): Yuen, Kan
• Application Number:
  US12/574,662
• Publication Number:
  US 20110080921A1
• Time in Patent Office: 973 Days
• Field of Search: 370/341, 370/389, 3703952-39531, 370/431, 370/469, 709/200, 709204-207, 709226-228, 709/230, 709/238
• US Class Current: 370/389
• CPC Class Codes: H04L 12/1863 comprising mechanisms for improved reliability, e.g. status reports arrangements for detecting or preventing errors by carrying supervisory signal the return channel H04L1/16
• CPC Class Codes: H04L 61/103 across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]

Abstract

A method and apparatus for processing message includes forming a logical address upon a creation of a channel of a group communication protocol at a logical address generator of a server. The logical address includes a unique identifier (UUID) associated with a logical name. The UUID created upon connecting the channel, and deleted upon disconnecting the channel. A mapping between UUIDs and physical addresses of members of the group is stored in a cache of a member of the group.

Claims

1. A computer-implemented method for processing messages, the method comprising:

forming a logical address upon a creation of a channel of a group communication protocol at a logical address generator of a server, the logical address comprising a unique identifier (UUID) associated with a logical name, the UUID created upon connecting the channel, and deleted upon disconnecting the channel, the logical name unique to the UUID and the logical address; and

storing a mapping between UUIDs and physical addresses of members of the group in a cache of a member of the group;

wherein the logical address is selected such that it cannot be reused after a corresponding channel is closed or disconnected.

2. The computer-implemented method of claim 1 wherein the logical address is formed independently of an IP address and a port of a receiver socket.

3. The computer-implemented method of claim 2 wherein the logical address is selected by a user on channel creation.

4. The computer-implemented method of claim 1 wherein each channel is associated with a corresponding group.

5. The computer-implemented method of claim 1 further comprising:

sending messages to the logical address through a programming interface layered on ton of a building block, the building block layered on top of a corresponding channel of a channel layer, the channel layer layered on top of a protocol stack, and the protocol stack coupled to a network.

6. The computer-implemented method of claim 1 further comprising:

receiving messages from the logical address through a programming interface layered on top of a building block, the building block layered on top of a corresponding channel of a channel layer, the channel layer layered on top of a protocol stack, and the protocol stack coupled to a network.

7. A non-transitory computer-readable storage medium, having instructions stored therein, which when executed, program a computer system to perform a method comprising:

forming a logical address upon a creation of a channel of a group communication protocol, the logical address comprising a unique identifier (UUID) associated with a logical name, the UUID created upon connecting the channel, and deleted upon disconnecting the channel, the logical name unique to the UUID and the logical address; and

storing a mapping between UUIDs and physical addresses of members of the group in a cache of a member of the group;

wherein the logical address is selected such that it cannot be reused after a corresponding channel is closed or disconnected.

8. The non-transitory computer-readable storage medium of claim 7 wherein the logical address is formed independently of an IP address and a port of a receiver socket.

9. The non-transitory computer-readable storage medium of claim 8 wherein the logical address is selected by a user on channel creation.

10. The non-transitory computer-readable storage medium of claim 7 wherein each channel is associated with a corresponding group.

11. The non-transitory computer-readable storage of claim 7 wherein the method further comprises:

sending messages to the logical address through a programming interface layered on top of a building block, the building block layered on top of a corresponding channel of a channel layer, the channel layer layered on top of a protocol stack, and the protocol stack coupled to a network.

12. The non-transitory computer-readable storage medium of claim 7 further comprising:

receiving messages from the logical address through a programming interface layered on top of a building block, the building block layered on top of a corresponding channel of a channel layer, the channel layer layered on top of a protocol stack, and the protocol stack coupled to a network.

13. An apparatus for processing messages comprising:

a unique identifier (UUID) generator configured to generate a UUID assigned to a node of a group communication protocol, the UUID for the node generation upon the node connecting to a channel of the group communication protocol, and deleted upon the node disconnecting from the channel;

a logical address generator communicably coupled to the UUID generator, the logical address generator configured to form a logical address associated with the generated UUID for the node, the logical address comprising the UUID of the node and a logical name unique to the UUID and the logical address, wherein the logical address is selected such that it cannot be reused after a corresponding channel is closed or disconnected; and

a cache communicably coupled to the UUID generator and the logical address generator, the cache configured to store a mapping between UUIDs and physical addresses of nodes of the group in a cache of a node of the group.

14. The apparatus of claim 13 wherein the logical address is formed independently of an IP address and a port of a receiver socket.

15. The apparatus of claim 14 wherein the logical address is selected by a user on channel creation.

16. The apparatus of claim 13 wherein each channel is associated with a corresponding group.

17. The apparatus of claim 13 wherein the transport protocol stack is coupled to a network for sending and receiving messages to members of the group.