Transactional updating in dynamic distributed workloads

• US 9,244,722 B2
• Filed: 12/23/2010
• Issued: 01/26/2016
• Est. Priority Date: 01/11/2010
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Burgess, George M., Johnson, Paul, Mitchell, Ian J.
• Primary Examiner(s): Lee, Tammy
• Application Number:
  US13/520,887
• Publication Number:
  US 20120284723A1
• Time in Patent Office: 1,860 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 11/2033 switching over of hardware resources
• CPC Class Codes: G06F 9/466 Transaction processing
• CPC Class Codes: G06F 9/5033 considering data affinity

Abstract

A workload manager is operable with a distributed transaction processor having a plurality of processing regions and comprises: a transaction initiator region for initiating a transaction; a transaction router component for routing an initiated transaction to one of the plurality of processing regions; an affinity controller component for restricting transaction routing operations to maintain affinities; the affinity controller component characterised in comprising a unit of work affinity component operable with a resource manager at the one of the plurality of processing regions to activate an affinity responsive to completion of a recoverable data operation at the one of the plurality of processing regions.

Claims

1. A method of operating a workload manager with a distributed transaction processor having a plurality of regions, comprising:

initiating a transaction;

routing the initiated transaction to one of the plurality of processing regions;

declaring a provisional affinity between a unit of work for the initiated transaction and the processing region to which the initiated transaction is routed;

performing, by the processing region to which the initiated transaction is routed, a recoverable data operation;

activating, based upon completion of the recoverable data operation, the provisional affinity;

wherein the recoverable data operation is a recoverable modification to a resource accessed by the processing region to which the initiated transaction is routed; and

routing, prior to the recoverable data operation being perform, a second transaction having a same provisional affinity to an alternative one of the plurality of processing regions.