SEAMLESS UPGRADES IN A DISTRIBUTED DATABASE SYSTEM
    1.
    发明申请
    SEAMLESS UPGRADES IN A DISTRIBUTED DATABASE SYSTEM 有权
    分布式数据库系统中的无缝升级

    公开(公告)号:US20120239616A1

    公开(公告)日:2012-09-20

    申请号:US13051967

    申请日:2011-03-18

    IPC分类号: G06F7/00 G06F11/30 G06F17/30

    CPC分类号: G06F17/30578

    摘要: Embodiments are directed to providing distributed database service upgrades of database server instances in a computer cluster using multiple database server instances and to monitoring and maintaining a distributed database service during upgrade. In an embodiment, each computer system in a computer cluster instantiates at least two different database server instances on each of the nodes in the cluster. The first database server instances are configured to operate using a current distributed database version and the second instances are configured to operate using a new, updated distributed database service version. The computer system receives an indication that the distributed database service is to be upgraded. Then, based on the received indication, the computer system migrates database replicas from the first database server instances to the second database server instances which operate the new, updated service version, substantially without user-visible downtime.

    摘要翻译: 实施例旨在使用多个数据库服务器实例在计算机集群中提供数据库服务器实例的分布式数据库服务升级,并在升级期间监视和维护分布式数据库服务。 在一个实施例中,计算机集群中的每个计算机系统在群集中的每个节点上实例化至少两个不同的数据库服务器实例。 第一个数据库服务器实例被配置为使用当前分布式数据库版本进行操作,第二个实例被配置为使用新的更新的分布式数据库服务版本进行操作。 计算机系统接收到分布式数据库服务将被升级的指示。 然后,基于收到的指示,计算机系统将数据库副本从第一数据库服务器实例迁移到操作新的更新服务版本的第二数据库服务器实例,基本上没有用户可见的停机时间。

    Seamless upgrades in a distributed database system
    2.
    发明授权
    Seamless upgrades in a distributed database system 有权
    在分布式数据库系统中进行无缝升​​级

    公开(公告)号:US08326800B2

    公开(公告)日:2012-12-04

    申请号:US13051967

    申请日:2011-03-18

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30578

    摘要: Embodiments are directed to providing distributed database service upgrades of database server instances in a computer cluster using multiple database server instances and to monitoring and maintaining a distributed database service during upgrade. In an embodiment, each computer system in a computer cluster instantiates at least two different database server instances on each of the nodes in the cluster. The first database server instances are configured to operate using a current distributed database version and the second instances are configured to operate using a new, updated distributed database service version. The computer system receives an indication that the distributed database service is to be upgraded. Then, based on the received indication, the computer system migrates database replicas from the first database server instances to the second database server instances which operate the new, updated service version, substantially without user-visible downtime.

    摘要翻译: 实施例旨在使用多个数据库服务器实例在计算机集群中提供数据库服务器实例的分布式数据库服务升级,并在升级期间监视和维护分布式数据库服务。 在一个实施例中,计算机集群中的每个计算机系统在群集中的每个节点上实例化至少两个不同的数据库服务器实例。 第一个数据库服务器实例被配置为使用当前分布式数据库版本进行操作,第二个实例被配置为使用新的更新的分布式数据库服务版本进行操作。 计算机系统接收到分布式数据库服务将被升级的指示。 然后,基于收到的指示,计算机系统将数据库副本从第一数据库服务器实例迁移到操作新的更新服务版本的第二数据库服务器实例,基本上没有用户可见的停机时间。

    Specification of a hierarchical authorization model for a DBMS—SQL language extensions
    3.
    发明授权
    Specification of a hierarchical authorization model for a DBMS—SQL language extensions 有权
    规范DBMS-SQL语言扩展的分层授权模型

    公开(公告)号:US07613711B2

    公开(公告)日:2009-11-03

    申请号:US11151998

    申请日:2005-06-14

    IPC分类号: G06F17/30

    摘要: Provided are systems and methods that facilitate providing permission to entities of a database. A system includes a component that authorizes a principal of a containing entity to grant a permission to that entity, and a component that grants the permission to the containing entity, the grantee of the permission inherits a set of permissions to one or more entities contained by the containing entity. When a permission is granted to a parent in a hierarchy of a relational database, the permission is inherited by the child nodes. Also provided is a method for transferring ownership of entities in a relational database. The method includes a two-part handshake that can be audited to avoid repudiation issues.

    摘要翻译: 提供了有助于向数据库的实体提供许可的系统和方法。 系统包括授权包含实体的委托人向该实体授予许可的组件,以及向该包含实体授予许可的组件,该许可的授予者将继承一组或多个由 包含实体。 当向关系数据库的层次结构中的父级授予权限时,权限将由子节点继承。 还提供了一种用于转移关系数据库中的实体的所有权的方法。 该方法包括两部分握手,可以进行审核,以避免否认问题。