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    TRANSACTION ORDERING
    14.
    发明申请
    TRANSACTION ORDERING 审中-公开

    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

    IPC: G06F17/30 ,  G06F9/46

    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.

    Database system with database engine and separate distributed storage service
    15.
    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

    IPC: G06F17/30 ,  G06F11/14 ,  G06F11/20

    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。

    Forward-based resource delivery network management techniques
    16.
    发明授权
    Forward-based resource delivery network management techniques 有权
    基于转发的资源传递网络管理技术

    公开(公告)号：US09246776B2

    公开(公告)日：2016-01-26

    申请号：US14644031

    申请日：2015-03-10

    Applicant: Amazon Technologies, Inc.

    Inventor： Joseph L. Ellsworth ,  Brandon William Porter ,  Christopher Allen Suver ,  Christopher Richard Newcombe

    IPC: H04L12/24 ,  H04N21/2225 ,  H04N21/231 ,  H04L29/08 ,  G06F17/30 ,  H04L12/911

    CPC classification number: H04L41/5025 ,  G06F17/30091 ,  H04L41/0823 ,  H04L47/70 ,  H04L47/782 ,  H04L67/125 ,  H04N21/2225 ,  H04N21/23103

    Abstract: A resource delivery network and method for distributing content in the network is disclosed herein. The network comprises a plurality of servers arranged in tiers and partitioned. Each server includes a resource store with a set of resources for distribution to a successive tier. Updates to each successive tier are provided by a pull-forward client on servers in the tier. This forward propagation mechanism maximizes resource availability at edge servers in the network. Resources transmitted to the edge tier servers may be transformed, combined, and rendered without taxing lower tier servers. Transformation and pre-rendering of data can be performed by low priority CPU tasks at each layer of the system.

    Abstract translation: 本文公开了一种用于在网络中分发内容的资源传递网络和方法。 网络包括分层布置的多个服务器。 每个服务器包括具有用于分发到连续层的一组资源的资源存储。 每个连续层的更新由层中的服务器上的提前客户端提供。 这种正向传播机制使网络边缘服务器的资源可用性最大化。 传输到边缘层服务器的资源可以被转换，组合和呈现，而不对低层服务器征税。 可以通过系统各层的低优先级CPU任务执行数据的转换和预渲染。

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