Patent · US Active

Metadata versioning in a distributed database

US10545929B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

SAP SE · DE

Inventors

Florian Foebel · Wiesbaden, DE
Bjoern Friedmann · Bühl, DE
Boris Gruschko · Walldorf, DE
Martin Strenge · Simmerath, DE
Christian Mohr · Heidelberg, DE

Key dates

Filing date	Aug 31, 2016
Grant date	Jan 28, 2020
Priority date	—
Expiry date	Apr 3, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/275
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In one respect, there is provided a distributed database system. The distributed database system can include a plurality of nodes and a plurality of optimizers. A first optimizer of the plurality of optimizers can be configured to: receive, from a client, a command; generate, based at least in part on global metadata cached by the first optimizer, an execution plan for fulfilling the command that includes one or more tasks to be performed by at least a first node of the plurality of nodes; determine that at least one task of the one or more tasks are not successfully performed by the first node; and in response to determining that at least one task of the one or more tasks are not successfully performed by the first node, updating the cached global metadata at the first optimizer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.