Transactional updating in dynamic distributed workloads

• US 9,904,573 B2
• Filed: 11/29/2015
• Issued: 02/27/2018
• 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:
  US14/953,381
• Publication Number:
  US 20160077868A1
• Time in Patent Office: 821 Days
• Field of Search: None
• 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 characterized 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 and non-activated affinity between a unit of work associated with 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; and

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

2. The method of claim 1, wherein

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

3. A computer hardware system configured to operate a workload manager with a distributed transaction processor having a plurality of regions, comprising:

at least one hardware processor configured to perform and/or initiate;

initiating a transaction;

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

declaring a provisional and non-activated affinity between a unit of work associated with 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; and

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

4. The system of claim 3, wherein

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