Reconstructing distributed cached data for retrieval

• US 10,684,990 B2
• Filed: 01/09/2017
• Issued: 06/16/2020
• Est. Priority Date: 08/28/2009
• Status: Active Grant

• Current Assignee: UST Global (Singapore) Pte Ltd. (UST Global Incorporated)
• Original Assignee: UST Global (Singapore) Pte Ltd. (UST Global Incorporated)
• Inventors: Moss, Simon Byford, Elkins, Elizabeth Winters, Bachelor, Douglas Wiley, Curbelo, Raul Hugo, Fountain, Thomas C.
• Primary Examiner(s): Onat, Umut
• Application Number:
  US15/401,658
• Publication Number:
  US 20170185621A1
• Time in Patent Office: 1,254 Days
• CPC Class Codes: G06F 16/172 Caching, prefetching or hoarding of files
• CPC Class Codes: G06F 16/184 implemented as replicated file system
• CPC Class Codes: G06N 3/02 Neural networks
• CPC Class Codes: G06N 3/04 Architecture, e.g. interconnection topology
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 10/067 Enterprise or organisation modelling

Abstract

In a distributed processing environment, an adaptor object on a first computer creates a disk cache file that includes a copy of data acquired from a data source. The performance of a CRUD operation on the copy of the data is recorded in a disk cache change history. A business intelligence object requests the data as the data existed prior to the performance of the CRUD operation from a second computer. The second computer, determines that the requested data does not exist on the second computer. The first computer determines, in response to a request from the second computer that the requested data exists on the first computer. The requested data is reconstructed from the copy in the cache to create reconstructed data. A local copy of the reconstructed data is created on the second computer; and a reference to the local copy is provided to the requesting object.

Claims

1. A method for retrieving data in a distributed processing environment, comprising:

creating, by an adaptor object, on a first computer that includes a first cache system, a disk cache file that includes a copy of data acquired from a data source;

recording in a disk cache change history the performance of one of a create, read, update, and delete (CRUD) operation on the copy of the data;

receiving from a business intelligence object a request by a second cache system on a second computer for the data as the data existed prior to the performance of the CRUD operation;

determining, by the second cache system, that the requested data does not exist on the second computer;

determining by the first cache system, in response to a request from the second cache system, that the requested data exists on the first computer;

reconstructing the requested data from the copy of the data in the first cache system to create reconstructed data;

creating a local copy of the reconstructed data on the second computer; and

providing, to the business intelligence object, a reference to the local copy of the reconstructed data.