公开(公告)号：US10754844B1

公开(公告)日：2020-08-25

申请号：US15717614

申请日：2017-09-27

Applicant: Amazon Technologies, Inc.

Inventor： Vaibhav Jain ,  Tate Andrew Certain ,  James Christopher Sorenson, III ,  Sharatkumar Nagesh Kuppahally ,  Akshat Vig ,  Go Hori ,  Chase Kernan ,  Naveen Ganapathi Subramanian ,  Nicholas Gordon

IPC: G06F11/14 ,  G06F16/23

Abstract: Various systems and methods to efficiently store backups of partitions of a database are disclosed. An indication to take a current snapshot of a partition of the database is received. A log size and operation type statistics are determined for a portion of the change log for the partition. A snapshot type is determined for the partition based at least in part on the log size and the operation type statistics, where the snapshot type specifies a log-based snapshot or a full snapshot. The snapshot is stored as metadata indicating a point in the change log if the determined snapshot type is log-based snapshot or stored as complete data of the partition if the determined snapshot type is full snapshot.