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    SYSTEM FOR STORING DISTRIBUTED HASHTABLES
    2.
    发明申请
    SYSTEM FOR STORING DISTRIBUTED HASHTABLES 审中-公开
    存储分布式可变系统

    公开(公告)号：US20090144220A1

    公开(公告)日：2009-06-04

    申请号：US11948236

    申请日：2007-11-30

    申请人： Andrew A. Feng ,  Michael Bigby ,  Bryan Call ,  Brian F. Cooper ,  Daniel Weaver

    发明人： Andrew A. Feng ,  Michael Bigby ,  Bryan Call ,  Brian F. Cooper ,  Daniel Weaver

    IPC分类号： G06F17/30

    CPC分类号： G06F16/2255

    摘要： A system for storing a distributed hash table. The system includes a storage unit, a tablet controller, a router, and a transaction bank. The storage unit has a plurality of tablets forming a hash table and each of the tablets includes multiple records. The tablet controller maintains a relationship between each tablet and the storage unit. The router hashes a record's key to determine the tablet associated with each record. Further, the router distributes messages from clients to the storage units based on the tablet-storage unit relationship thereby serving as a layer of indirection. The transaction bank propagates updates made in one record to all other replicas of the record.

    摘要翻译： 一种用于存储分布式哈希表的系统。 该系统包括存储单元，平板电脑控制器，路由器和交易银行。 存储单元具有形成散列表的多个片，并且每个片包括多个记录。 平板电脑控制器维持每个平板电脑和存储单元之间的关系。 路由器散列记录的密钥以确定与每个记录相关联的平板电脑。 此外，路由器基于平板电脑存储单元关系将消息从客户端分发到存储单元，从而用作间接层。 交易银行将一条记录中的更新传播到记录的所有其他副本。

    ASYNCHRONOUSLY REPLICATED DATABASE SYSTEM USING DYNAMIC MASTERSHIP
    4.
    发明申请
    ASYNCHRONOUSLY REPLICATED DATABASE SYSTEM USING DYNAMIC MASTERSHIP 审中-公开
    使用动态MASTERSHIP的异步数据库系统

    公开(公告)号：US20090144338A1

    公开(公告)日：2009-06-04

    申请号：US11948221

    申请日：2007-11-30

    申请人： Andrew A. Feng ,  Michael Bigby ,  Bryan Call ,  Brian F. Cooper ,  Daniel Weaver

    发明人： Andrew A. Feng ,  Michael Bigby ,  Bryan Call ,  Brian F. Cooper ,  Daniel Weaver

    IPC分类号： G06F17/30 ,  G06F12/06

    CPC分类号： G06F16/273

    摘要： A system for a distributed database implementing a dynamic mastership strategy. The system includes a multiple data centers, each having a storage unit to store a set of records. Each data center stores its own replica of the set of records and each record includes a field that indicates which data center is assigned to be the master for that record. Since each of the data centers can he geographically distributed, one record may be more efficiently edited with the master being one geographic region while another record, possibly belonging to a different user, may be more efficiently edited with the master being located in another geographic region.

    摘要翻译： 用于分布式数据库的系统，用于实现动态管理策略。 该系统包括多个数据中心，每个数据中心具有存储单元以存储一组记录。 每个数据中心存储其自己的记录集合的副本，并且每个记录包括指示哪个数据中心被分配为该记录的主数据的字段。 由于每个数据中心都可以在地理上分布，所以主机可以更有效地编辑一个记录，主机是一个地理区域，而可能属于不同用户的另一个记录可以被更有效地编辑，主机位于另一个地理区域 。

    SYSTEM FOR MAINTAINING A DATABASE
    6.
    发明申请
    SYSTEM FOR MAINTAINING A DATABASE 审中-公开
    维护数据库的系统

    公开(公告)号：US20090144333A1

    公开(公告)日：2009-06-04

    申请号：US11948262

    申请日：2007-11-30

    申请人： Andrew A. Feng ,  Michael Bigby ,  Bryan Call ,  Brian F. Cooper ,  Daniel Weaver

    发明人： Andrew A. Feng ,  Michael Bigby ,  Bryan Call ,  Brian F. Cooper ,  Daniel Weaver

    IPC分类号： G06F17/30

    CPC分类号： G06F16/21

    摘要： A system for maintaining a database. The system includes a storage unit for storing many tablets each tablet including multiple records. The tablet controller is configured to maintain the relationship between the tablet and the storage unit. The tablet controller tracks failures to access the storage unit and designates a new storage unit for each tablet based on a storage unit failure. A router is in communication with the tablet controller and configured to distribute messages from clients to the storage units thereby serving as a layer of indirection.

    摘要翻译： 用于维护数据库的系统。 该系统包括用于存储包括多个记录的每个平板电脑的许多片的存储单元。 平板电脑控制器被配置为维持平板电脑和存储单元之间的关系。 平板电脑控制器跟踪访问存储单元的故障，并根据存储单元故障为每个平板电脑指定一个新的存储单元。 路由器与平板电脑控制器通信，并被配置为将消息从客户端分发到存储单元，从而用作间接层。