Patent ID: 11921699
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. A method, comprising:
obtaining, by a first data processing node of a plurality of data processing nodes with access to a data set, a consistency lease that confirms write access to the data set, wherein the consistency lease describes a point in time determined from a time-to-live (TTL) amount of time added to a consistent state point in time for the data set determined based on a write to the data set;
receiving, at the first data processing node, a read request directed to the data set;
determining, by the first data processing node, that a multi-version concurrency control (MVCC) snapshot time assigned by the first data processing node to the read request is less than the point in time of the consistency lease; and
responsive to determining that the MVCC snapshot time assigned by the first data processing node to the first read request is less than the point in time of the consistency lease, performing, by the first data processing node, the first read request to the data set according to the multi-version concurrency control snapshot time.