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公开(公告)号：US20230092908A1
公开(公告)日：2023-03-23
申请号：US18054870
申请日：2022-11-11
Applicant: Amazon Technologies, Inc.
Inventor： Anurag Windlass Gupta , Neal Fachan , Samuel James McKelvie , Laurion Darrell Burchall , Christopher Richard Newcombe , Pradeep Jnana Madhavarapu , Benjamin Tobler , James McClellan Corey
Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.
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公开(公告)号：US11500852B2
公开(公告)日：2022-11-15
申请号：US16914075
申请日：2020-06-26
Applicant: Amazon Technologies, Inc.
Inventor： Anurag Windlass Gupta , Neal Fachan , Samuel James McKelvie , Laurion Darrell Burchall , Christopher Richard Newcombe , Pradeep Jnana Madhavarapu , Benjamin Tobler , James McClellan Corey
Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.
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Patent Agency Ranking
公开(公告)号：US10698881B2
公开(公告)日：2020-06-30
申请号：US15369681
申请日：2016-12-05
Applicant: Amazon Technologies, Inc.
Inventor： Anurag Windlass Gupta , Neal Fachan , Samuel James McKelvie , Laurion Darrell Burchall , Christopher Richard Newcombe , Pradeep Jnana Madhavarapu , Benjamin Tobler , James McClellan Corey
Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.
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公开(公告)号：US10255148B2
公开(公告)日：2019-04-09
申请号：US15489523
申请日：2017-04-17
Applicant: Amazon Technologies, Inc.
Inventor： Nicholas Ryman Vogel , Colm MacCarthaigh , Grant Alexander MacDonald McAlister , Laurion Darrell Burchall , Jorgen Lawrence Johnson
Abstract: Methods and apparatus for a primary role reporting service for resource groups are disclosed. A reporting intermediary assigned to a resource group of a network-accessible service receives role information indicating the identity of a primary member of the group from a state manager of the network-accessible service. The intermediary receives a health status query pertaining to the resource group from a health checking subsystem used by a network address discovery service, and provides a health status response based on the role information. The response provided by the reporting intermediary is used by the network address discovery service to provide a network address in response to a lookup query for the resource group.
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公开(公告)号：US20180004801A1
公开(公告)日：2018-01-04
申请号：US15701343
申请日：2017-09-11
Applicant: Amazon Technologies, Inc.
Inventor： Laurion Darrell Burchall , Pradeep Jnana Madhavarapu , Christopher Richard Newcombe , Anurag Windlass Gupta
CPC classification number: G06F16/2379 , G06F9/466 , G06F16/2315 , G06F16/2336 , G06F16/2365
Abstract: Nodes of a database service may receive a read request to perform a read of a record stored by the database service and a transaction request to perform a transaction to the record. First and second indications of time may be associated with the read and transaction, respectively. A potential read anomaly (e.g., fuzzy read, read skew, etc.) may be detected based, at least in part, on a determination that the first indication of time is within a threshold value of the second indication of time. In response to detecting the potential read anomaly, the read may be performed after the transaction specified by the transaction request, regardless of whether the first indication of time is indicative of an earlier point in time than the second indication of time.
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公开(公告)号：US20170270152A1
公开(公告)日：2017-09-21
申请号：US15613637
申请日：2017-06-05
Applicant: Amazon Technologies, Inc.
Inventor： Anurag Windlass Gupta , Pradeep Jnana Madhavarapu , Laurion Darrell Burchall , Neal Fachan
CPC classification number: G06F16/2358 , G06F11/1474 , G06F16/27 , G06F2201/80 , G06F2201/82
Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. Upon detection of a coalesce event for a particular data page, log records linked to the particular data page may be applied to generate the particular data page in its current state. Detecting the coalesce event may be a determination that the number of log records linked to the particular data page exceeds a threshold.
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17.发明授权Database system with database engine and separate distributed storage service 有权数据库系统与数据库引擎和单独的分布式存储服务公开(公告)号：US09514007B2
公开(公告)日：2016-12-06
申请号：US14201493
申请日：2014-03-07
Applicant: Amazon Technologies, Inc.
Inventor： Anurag Windlass Gupta , Neal Fachan , Samuel James McKelvie , Laurion Darrell Burchall , Christopher Richard Newcombe , Pradeep Jnana Madhavarapu , Benjamin Tobler , James McClellan Corey
CPC classification number: G06F17/30371 , G06F11/1451 , G06F11/1471 , G06F11/2094 , G06F17/30345 , G06F2201/80
Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.
Abstract translation: 数据库系统可以包括数据库服务和单独的分布式存储服务。 数据库服务（或其数据库引擎头节点）可以负责查询解析，优化和执行，事务性和一致性，而存储服务可能负责从重做日志记录生成数据页面以及对这些数据的耐久性 页面。 例如，响应于针对特定数据页的写请求，数据库引擎头节点可以生成重做日志记录，并将其发送到存储服务节点，而不是数据页。 存储服务节点可以存储重做日志记录，并在应用重做日志记录之前向数据库服务返回写入确认。 服务器节点可以将重做日志记录和其他重做日志记录应用于先前存储的数据页面版本，以创建当前版本。
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