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    TABLE AND INDEX COMMUNICATIONS CHANNELS
    1.
    发明申请
    TABLE AND INDEX COMMUNICATIONS CHANNELS 审中-公开

    公开(公告)号：US20190179807A1

    公开(公告)日：2019-06-13

    申请号：US16276413

    申请日：2019-02-14

    Applicant: Amazon Technologies, Inc.

    Inventor： Xianglong Huang ,  Yijun Lu ,  Wei Xiao ,  Jiandan Zheng

    IPC: G06F16/21

    Abstract: One or more table partitions may communicate with an index partition that may be a master of a replication group. A communications channel may exist between table partitions and the index partition. Upon splitting the index partition, communications between the table partitions and the index partition may be suspended. Upon completion of the split, communications may be reestablished between the table partitions and a partition, of the replication group of index partitions, designated to be a master following the split. Messages accumulated by the table partitions during the split may be sent to the index partition upon reestablishing communications.

    Table and index communications channels
    2.
    发明授权
    Table and index communications channels 有权

    公开(公告)号：US10102228B1

    公开(公告)日：2018-10-16

    申请号：US14182248

    申请日：2014-02-17

    Applicant: Amazon Technologies, Inc.

    Inventor： Xianglong Huang ,  Yijun Lu ,  Wei Xiao ,  Jiandan Zheng

    IPC: G06F17/30

    Abstract: One or more table partitions may communicate with one or more index partitions. A communications channel may be dedicated to each combination of table partition and index partition. The communications channel may act as a queue of messages corresponding to updates to data maintained in a table partition that have yet to be processed by a corresponding index partition. Upon splitting a table partition, communications channels may be duplicated including unprocessed messages. Connections between new table partitions and an index may be finalized upon the index's receipt of a message indicative of the new table partition.

    Input-output prioritization for database workload
    5.
    发明授权
    Input-output prioritization for database workload 有权
    数据库工作负载的输入输出优先级

    公开(公告)号：US09262505B2

    公开(公告)日：2016-02-16

    申请号：US13897232

    申请日：2013-05-17

    Applicant: Amazon Technologies, Inc.

    Inventor： David Craig Yanacek ,  Bjorn Patrick Swift ,  Wei Xiao ,  Kiran-Kumar Muniswamy-Reddy ,  Miguel Mascarenhas Filipe ,  Yijun Lu

    IPC: G06F17/30

    CPC classification number: G06F17/30595 ,  G06F17/30289 ,  G06F17/30386

    Abstract: A database management system may be operated by a third-party provider that hosts the system in a datacenter and provides access to the system to end users on behalf of various entities. Limits on total capacity consumption may be imposed, but may result in service outages when capacity consumption exceeds those limits. Requests to perform operations on the system may be classified. The request classifications may be associated with policies for admitting or rejecting the request. One or more token buckets representative of capacity available to the request to perform the operation may be used to determine to admit the request and updated based on the cost of performing the operation.

    Abstract translation: 数据库管理系统可以由在数据中心中承载系统的第三方提供商来操作，并且代表各种实体向终端用户提供对系统的访问。 总容量消耗的限制可能会受到限制，但是当容量消耗超过这些限制时可能导致服务中断。 可以对在系统上执行操作的请求进行分类。 请求分类可能与允许或拒绝请求的策略相关联。 可以使用表示可用于执行操作的请求的容量的一个或多个令牌桶来确定承认请求并且基于执行操作的成本来更新。

    Token sharing mechanisms for burst-mode operations
    9.
    发明授权
    Token sharing mechanisms for burst-mode operations 有权
    用于突发模式操作的令牌共享机制

    公开(公告)号：US09218221B2

    公开(公告)日：2015-12-22

    申请号：US13926708

    申请日：2013-06-25

    Applicant: Amazon Technologies, Inc.

    Inventor： Wei Xiao ,  Miguel Mascarenhas Filipe ,  James R. Hamilton ,  Yijun Lu ,  Stefano Stefani ,  Stuart Henry Seelye Marshall ,  Bjorn Patrick Swift ,  Kiran-Kumar Muniswamy-Reddy

    IPC: G06F9/46 ,  G06F9/50

    CPC classification number: G06F9/5083 ,  G06F9/5016 ,  G06F2209/5013 ,  G06F2209/503

    Abstract: Methods and apparatus for token-sharing mechanisms for burst-mode operations are disclosed. A first and a second token bucket are respectively configured for admission control at a first and a second work target. A number of tokens to be transferred between the first bucket and the second bucket, as well as the direction of the transfer, are determined, for example based on messages exchanged between the work targets. The token transfer is initiated, and admission control decisions at the work targets are made based on the token population resulting from the transfer.

    Abstract translation: 公开了用于突发模式操作的令牌共享机制的方法和装置。 第一和第二令牌桶分别被配置用于第一和第二工作目标的准入控制。 例如，基于在工作目标之间交换的消息来确定要在第一桶和第二桶之间传送的多个令牌以及传送方向。 启动令牌传输，并且基于从传送导致的令牌群进行工作目标的准入控制决定。

    Real-time monitoring of IO load and latency
    10.
    发明授权
    Real-time monitoring of IO load and latency 有权

    公开(公告)号：US10924562B1

    公开(公告)日：2021-02-16

    申请号：US13886025

    申请日：2013-05-02

    Applicant: Amazon Technologies, Inc.

    Inventor： Wei Xiao ,  Kiran-Kumar Muniswamy-Reddy ,  Yijun Lu ,  Bjorn Patrick Swift ,  Miguel Mascarenhas Filipe

    IPC: H04L29/08

    Abstract: Providers of web services and other types of software as a service may be subject to service-level agreements requiring that response times be within a defined range. For efficiency, multiple services may be hosted on the same set of computing nodes, which may jeopardize adherence to service-level agreements. A control system may involve classifying service requests and determining desired values for measurements such as latency. An error value may be calculated based on the difference between measured and desired values. A controller may adjust a rate of capacity utilization for the computing nodes based on the current error, a history of past errors, and a prediction of future errors.

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