Amazon Technologies, Inc.

Akanksha Fouzdar

Somasundaram Perianayagam

Alexander Richard Keyes

James Christopher Sorenson

Akshat Vig

Sharatkumar Nagesh Kuppahally

Oren Yossef

Arijit Choudhury

Mark Roper

Chase Kernan

Hao He

Tony Petrossian

Sanjay Shanthakumar

Sudhir Konduru

Shitanshu Aggarwal

Joon Ahn

Dharmik Dipakbhai Ghoghari

Debjyoti Roy

A geographically distributed data store including a number of geographically distributed regions may be implemented using replication groups that include multiple regions configured according to replication criteria. First tier replication of particular changes to data stored in the distributed data store may be performed in compliance with the replication criteria, where management of replication state is performed with respect to replication across the replication groups. Independent of the first tier replication, individual replication groups may implement second tier replication of changes to data where management of replication state is performed with respect to replication within the particular replication group. Replication group configuration may be determined using the replication criteria which may include thresholds for replication resource utilization, replication latency and utilization of data change logs.

Group replication for highly global workloads

Replicas may be added to a multi-leader replica group for a data set. A new replica may be added to a group of replicas by copying a version of the data set according to a point in time to the new replica. As updates may occur at different ones of the replicas when the new replica is added, updates that occurred at a source replica for the snapshot and other replicas may be replicated by the different replicas according to the point in time at which the snapshot is created without blocking updates at any of the replicas in the replica group.

Adding replicas to a multi-leader replica group for a data set

Systems and methods are disclosed to implement, in a database system, global table management operations for global tables or objects that are replicated across multiple locations. In embodiments, for a regional replica of a global table, a requested change to a metadata property of the replica (e.g., an attribute data type, a write throughput limit, or a time-to-live setting) is propagated to other replicas of the global table at other locations. In embodiments, before performing the requested management operation, the database system may first verify that the operation can be successfully performed in all locations. In embodiments, the operation may be performed optimistically without verification, and rolled back if it cannot be performed everywhere. In embodiments, to serialize management operations on a global table, the database system may check for other pending management operations via a shared control object, and proceed when any pending operations are finished.

Global table management operations for multi-region replicated tables

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Sunnyvale, CA, United States of America

Akanksha Fouzdar