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公开(公告)号:US11789971B1
公开(公告)日:2023-10-17
申请号:US16700131
申请日:2019-12-02
Applicant: Amazon Technologies, Inc.
Inventor: Sharatkumar Nagesh Kuppahally , Somasundaram Perianayagam , Hao He , James Christopher Sorenson, III , Akshat Vig , Oren Yossef , Sanjay Shanthakumar , Chase Kernan , Alexander Richard Keyes , Akanksha Fouzdar , Sudhir Konduru , Arijit Choudhury
CPC classification number: G06F16/27 , G06F11/1448 , G06F16/2282 , G06F16/2365 , G06F2201/84
Abstract: 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.
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公开(公告)号:US12105692B1
公开(公告)日:2024-10-01
申请号:US17937424
申请日:2022-09-30
Applicant: Amazon Technologies, Inc.
Inventor: Aravind Kumar Kumar , Praveen Kannan , Grant A McAlister , Saleem Mohideen , Raghavendran Gururajan , Navaneetha Krishnan Thanka Nadar , Jan Engelsberg , James Laurence Finnerty , Murali Brahmadesam , Sanjay Shanthakumar
CPC classification number: G06F16/2272 , G06F16/256
Abstract: Shard management may be implemented for scalable database tables. A table may be identified as aligned with another table of the database according to a common shard key across multiple shards that are mapped to respective storage volumes of a data store of the database according to a placement hierarchy. Different portions of the table may be stored across the shards as respective table slices with corresponding portions of the other table as respective other table slices with same values of the shard key. Metadata for performing access requests to the database may be updated to identify individual ones of the table slices stored with individual ones of the other table slices as respective table slice groups that are mapped to respective ones of the shards in the placement hierarchy.
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公开(公告)号:US11061924B2
公开(公告)日:2021-07-13
申请号:US15971994
申请日:2018-05-04
Applicant: Amazon Technologies, Inc.
Inventor: Asmita Barve , Richard Shawn Bice , Tate Andrew Certain , Sanket Vishram Chandorkar , Derek William Richard Chen-Becker , Arijit Choudhury , Murtaza Doctor , Sudhir Konduru , Timothy Matthew Lewis , Abhijeet More , Hina Naseer , Ramanathan Padinjarel Somanathan , Karthikeyani Palanisami , Rashmi Krishnaiah Setty , Sanjay Shanthakumar , Ray Manpreet Singh Matharu , Douglas Brian Terry
Abstract: A geographically distributed system using a hybrid, multi-master design is disclosed. The system may use global tables, for which both reads and writes may be performed locally, but with a single region serving as a master region. All strongly consistent reads and writes may be sent to the master region, whereas eventually consistent reads and writes may be performed in any region with a replica. The master region may not be statically assigned but may move from region to region. The master region may be assigned manually by client preference or may be assigned and updated automatically based on the time of day or workload characteristics.
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公开(公告)号:US20190155937A1
公开(公告)日:2019-05-23
申请号:US15971994
申请日:2018-05-04
Applicant: Amazon Technologies, Inc.
Inventor: Asmita Barve , Richard Shawn Bice , Tate Andrew Certain , Sanket Vishram Chandorkar , Derek William Richard Chen-Becker , Arijit Choudhury , Murtaza Doctor , Sudhir Konduru , Timothy Matthew Lewis , Abhijeet More , Hina Naseer , Ramanathan Padinjarel Somanathan , Karthikeyani Palanisami , Rashmi Krishnaiah Setty , Sanjay Shanthakumar , Ray Manpreet Singh Matharu , Douglas Brian Terry
IPC: G06F17/30
Abstract: A geographically distributed system using a hybrid, multi-master design is disclosed. The system may use global tables, for which both reads and writes may be performed locally, but with a single region serving as a master region. All strongly consistent reads and writes may be sent to the master region, whereas eventually consistent reads and writes may be performed in any region with a replica. The master region may not be statically assigned but may move from region to region. The master region may be assigned manually by client preference or may be assigned and updated automatically based on the time of day or workload characteristics.
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