Amazon Technologies, Inc.

Seungmin Wei

Murali Brahmadesam

Raman Mittal

Changan Han

Xiaofeng Bao

Xiang Peng

Konstantin Dubinets

Venkatesh Nandakumar

Anurag Windlass Gupta

Alexandre Olegovich Verbitski

Saleem Mohideen

Ramesh Shankar

Sumit Kumar

Li-Che Hsiao

Benjamin S Ellis

Tiffany Jianto

Crosbie Matthew Smith

Kevin Liu

Aadithya Chandramalle Gowda

Alisdair William Owens

A point-in-time clone may be created for a database. A request to create the point-in-time clone may be received. The clone may be provided with access to a storage for the database that stores a history of modifications to the database applicable to return data of the database according to a state of the data at the specified point in time. The clone may then be updated so that the updates made to the clone are stored for subsequent access by the clone.

Creating database clones at a specified point-in-time

Online restore operations for a database engine can be performed. A request to restore a database to a previous state can be received. Previously stored content of the database, such as snapshot stored prior to the previous state, can be identified along with log records describing changes to be made to the content prior to the previous state. State information in a query engine can be updated based on the previously stored content and log records so that queries can be processed based on the state information at the database restore to the previous state.

Online restore to a selectable prior state for database engines

Adaptive replication of changes may be performed for copies of a database. Log records may be generated and stored that correspond to changes to a database while a database is being copied. If the changes to be applied to a copy of the database is less than or equal to a threshold number of changes, then the copy of the database may be updated using the stored log records. If the changes to be applied to the copy of the database are greater than the threshold number of changes, then the copy of the database may be updated using data stored in the database.

Adaptive database replication for database copies

Data pages of a database may be shared to create a copy of the database. A request to create a copy of the database may be received. Pointers to the data pages in the data store may be generated and stored as part of the copy of the database. When a request to read a data page in the copy of the database is received, the pointer to the data page may be accessed and the data page read from the database. When a request to modify a data page in the copy of the database is received, a modified version of the data page may be stored as part of the copy of the database and the pointer updated to point to the modified version of the data page.

Shared pages for database copies

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Bellevue, WA, United States of America

Seungmin Wei