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    Distributed transactions across multiple consensus groups
    5.
    发明授权
    Distributed transactions across multiple consensus groups 有权

    公开(公告)号：US10282457B1

    公开(公告)日：2019-05-07

    申请号：US15016192

    申请日：2016-02-04

    Applicant: Amazon Technologies, Inc.

    Inventor： Tao Chen ,  Divya Ashok Kumar Jain ,  Fan Ping ,  Marc John Brooker

    IPC: G06F7/00 ,  G06F17/00 ,  G06F17/30

    Abstract: Methods, systems, and computer-readable media for distributed transactions across multiple consensus groups are disclosed. A distributed transaction system comprises a proposer and a plurality of consensus groups, including a first consensus group comprising a first plurality of members and a second consensus group comprising a second plurality of members. The proposer proposes a transaction to at least a portion of the first consensus group and at least a portion of the second consensus group. A majority of the members in the first consensus group agree to perform the transaction, where the transaction is selected from a plurality of proposed transactions involving the first consensus group. A majority of the members in the second consensus group also agree to perform the transaction. The members of the first and second consensus groups perform the transaction to update a plurality of stored replicas.

    Distributed log processing for data replication groups
    6.
    发明授权
    Distributed log processing for data replication groups 有权

    公开(公告)号：US11640410B1

    公开(公告)日：2023-05-02

    申请号：US14957421

    申请日：2015-12-02

    Applicant: Amazon Technologies, Inc.

    Inventor： Matthew Joseph Zulak ,  Tao Chen ,  Fan Ping ,  Lakshmi N. Pallikila ,  Shobha Agrawal ,  Marc John Brooker

    IPC: G06F16/27

    Abstract: Data replication groups may be used to store data in a distributed computing environment. The data replication groups may include a set of nodes executing a consensus protocol to maintain data durably. The nodes of the data replication groups may generate logs containing information corresponding committed operations performed by the nodes. These logs may be collected and processed to obtain useful information corresponding to the operation of the data replication group. Furthermore, this processed information may be provided in the form of a stream to enable event driven operations corresponding to the logs.

    Consensus-based authority selection in replicated network-accessible block storage devices
    8.
    发明授权
    Consensus-based authority selection in replicated network-accessible block storage devices 有权

    公开(公告)号：US11288004B1

    公开(公告)日：2022-03-29

    申请号：US16818728

    申请日：2020-03-13

    Applicant: Amazon Technologies, Inc.

    Inventor： Fan Ping ,  Marc Brooker ,  Tao Chen

    IPC: G06F3/06 ,  G06F11/07

    Abstract: Systems and methods are provided to manage replicas of a virtualized block storage volume. The master replica of the virtualized block storage volume can heartbeat with each secondary replica of the virtualized block storage volume to provide an indication of the status of the master replica. Each secondary replica can reply to the heartbeat of the master replica. Each replica can be configured to request an updated replica configuration based on not receiving a heartbeat from one of the replicas. The master replica can request an updated replica configuration after a first time period without receiving a reply from one of the secondary replicas and each secondary replica can request an updated replica configuration after a second time period without receiving a communication from the master replica. Use of the heartbeat process between the master replica and the secondary replicas can increase system speed or reduce power consumption.

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