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    Simulating hierarchical structures in key value stores
    11.
    发明授权
    Simulating hierarchical structures in key value stores 有权

    公开(公告)号：US10303669B1

    公开(公告)日：2019-05-28

    申请号：US15085824

    申请日：2016-03-30

    Applicant: Amazon Technologies, Inc.

    Inventor： Christopher Andrew Stephens ,  Alazel Acheson ,  Douglas Stewart Laurence ,  Seth William Markle

    IPC: G06F17/30 ,  G06F7/00 ,  G06F16/22 ,  G06F16/13

    Abstract: A key-value store is adapted to represent hierarchical structures, such as directory structures, to be associated with objects otherwise mapped to a flat keyspace. For example, one or more key-value pairs stored in the key-value store are designated to have a key indicating the name of a hierarchical structure, and an associated value that maps the structure to a namespace (e.g., of a group of objects to be associated with a directory). Inbound requests for operations related to the objects in a given namespace and defining the structure are checked against such “redirecting” key-value pairs to determine whether the structure is related to the namespace objects, and if so, the request is internally processed to perform the requested operations against the actual key-value pair(s) associated with the objects without necessitating identification of the objects with a fully qualified name as represented in the flat keyspace.

    Using a global sequence number for replicating mutating data
    16.
    发明授权
    Using a global sequence number for replicating mutating data 有权

    公开(公告)号：US10649976B1

    公开(公告)日：2020-05-12

    申请号：US14975198

    申请日：2015-12-18

    Applicant: Amazon Technologies, Inc.

    Inventor： Alazel Acheson ,  Christopher Andrew Stephens ,  Seth William Markle ,  Subhakanta Kar

    IPC: G06F7/00 ,  G06F16/23 ,  H04L12/721 ,  G06F16/27

    Abstract: Routing data is copied from a primary data store to a local data store of a computing device. As the routing data is being copied by the computing device, changes to the data continue to occur. After copying all or a portion of the data, the computing device uses a value of a global sequence number (GSN) to determine if mutations have been made to the primary data. The routing data in the local data store is not consistent with the routing data stored in the primary data store when the value of the GSN is larger after the copying of the routing data as compared to the initial value of the GSN when the copying started. When changes have been made to the data, the computing device integrates the changes into the local data store before beginning routing operations.

    Policy mediated hierarchical structures in key value stores
    17.
    发明授权
    Policy mediated hierarchical structures in key value stores 有权

    公开(公告)号：US10460120B1

    公开(公告)日：2019-10-29

    申请号：US15085775

    申请日：2016-03-30

    Applicant: Amazon Technologies, Inc.

    Inventor： Christopher Andrew Stephens ,  Alazel Acheson ,  Douglas Stewart Laurence ,  Seth William Markle

    IPC: G06F21/62 ,  G06F16/185 ,  G06F16/22

    Abstract: A key-value store is adapted to represent hierarchical structures, such as directory structures, to be associated with objects otherwise mapped to a flat keyspace. For example, one or more key-value pairs stored in the key-value store are designated to have a key indicating the name of a hierarchical structure, and an associated value that maps the structure to a namespace (e.g., of a group of objects to be associated with a directory). Inbound requests for operations related to the objects in a given namespace and defining the structure are checked against such “redirecting” key-value pairs, as well as one or more policies associated with the structure, the namespace, the key-value pairs, or some combination thereof, to determine whether the structure is related to the namespace objects and whether one or more requested actions are authorized against that structure.

    Providing a consistent view of associations between independently replicated data objects
    19.
    发明授权
    Providing a consistent view of associations between independently replicated data objects 有权

    公开(公告)号：US11100129B1

    公开(公告)日：2021-08-24

    申请号：US15967446

    申请日：2018-04-30

    Applicant: Amazon Technologies, Inc.

    Inventor： Daniel Stephen Popick ,  Alazel Acheson ,  Jasmeet Chhabra ,  Luke Edward Kennedy ,  Meng Li

    IPC: G06F16/00 ,  G06F16/27 ,  G06F16/23

    Abstract: A consistent view of associations between independently replicated data objects may be provided. Data objects may be stored in separate data stores. Copies of the data stores may also store the data objects. The copies of the data stores may independently receive the data objects to be stored as part of independently replicating data stores to one or more copies of the data stores. An association can be created between objects in the different data store. If when the association is created it is determined that a referenced object is not yet stored in a copy of a data store, then both the association and the referenced object may be stored in the same data store so that the association and the referenced object are replicated together to a copy of the same data store.

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