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公开(公告)号：US12292881B1
公开(公告)日：2025-05-06
申请号：US17937430
申请日：2022-09-30
Applicant: Amazon Technologies, Inc.
Inventor： Alexandre Olegovich Verbitski , Upendra Govindagowda , Anand Kumar Thakur , Gaurav Kumar Gupta , David Charles Wein , Saleem Mohideen , Navaneetha Krishnan Thanka Nadar , Murali Brahmadesam
IPC: G06F16/23
Abstract: Distributed execution of transactions may be performed across shards of a scalable database table. Instructions to perform as part of a transaction with respect to one or more database tables may be received. The instructions may be evaluated with respect to metadata obtained for the database tables to determine an assignment distribution of computing resources of the database system to data that can satisfy the access request. The commit protocol for the transaction may be determined according to the assignment distribution of the computing resources. After a request to commit the transaction is received, the transaction may be committed according to the determined commit protocol.
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公开(公告)号：US11921699B1
公开(公告)日：2024-03-05
申请号：US18067676
申请日：2022-12-16
Applicant: Amazon Technologies, Inc.
Inventor： Upendra Govindagowda , Anand Kumar Thakur , David Charles Wein , Alexandre Olegovich Verbitski , James C Nasby , Hong Yang , Gaurav Kumar Gupta
CPC classification number: G06F16/2365 , G06F16/11 , G06F16/219 , G06F16/2322 , G06F16/27 , G06F11/2023 , G06F2201/84
Abstract: Lease-based consistency may be implemented for databases to handle failovers. A database node may obtain a consistency lease that describes a point in time determined from a time-to-live amount added to a consistent point in time for database data. While the consistency lease is valid, Multi-version Concurrency Control (MVCC) snapshots assigned by the database node can be used to handle requests to access the database data. Once expired, the database node may have to renew the consistency lease in order to continue to handle write and read requests.
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