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    • 15. 发明申请
    • Commitment of transactions in a distributed system
    • 在分布式系统中承诺交易
    • US20070143299A1
    • 2007-06-21
    • US11312994
    • 2005-12-19
    • Matthew HurasTimothy Vincent
    • Matthew HurasTimothy Vincent
    • G06F17/30
    • G06F9/466
    • A method, computer program product, and system for committing transactions in a distributed system are provided. The method, computer program product, and system provide for receiving a request from a client to commit a transaction at a coordinator node in the distributed system, tracking a tail log sequence number for every other node in the distributed system, determining a max log sequence number associated with the transaction for each participant node in the distributed system, and committing the transaction at the coordinator node when the tail log sequence number for each participant node is greater than or equal to the max log sequence number associated with the transaction at the respective participant node.
    • 提供了一种在分布式系统中进行交易的方法,计算机程序产品和系统。 方法,计算机程序产品和系统提供从客户端接收在分布式系统中的协调器节点处提交事务的请求,跟踪分布式系统中每个其他节点的尾部日志序列号,确定最大对数序列 与分布式系统中的每个参与者节点的事务相关联的号码,并且当每个参与者节点的尾部日志序列号大于或等于与相应的交易相关联的最大对数序列号时,在协调器节点处提交事务 参与者节点。
    • 17. 发明申请
    • Dynamic Cluster Database Architecture
    • 动态群集数据库架构
    • US20080016028A1
    • 2008-01-17
    • US11780446
    • 2007-07-19
    • Mark WILDINGMatthew Huras
    • Mark WILDINGMatthew Huras
    • G06F17/30
    • G06F17/30575G06F17/30362Y10S707/99931Y10S707/99938Y10S707/99953
    • distributed database management system implemented on a cluster of computers. The cluster including disks organized as data nodes. The data nodes being locally connected to one or more computers in the cluster. The distributed database management system includes a distributed database manager layer having a lock manager, a resource manager, and an architecture manager. The lock manager serializes access to the data nodes in the cluster. The resource manager maintains a data representation of the resources of each computer in the cluster and makes the data available to other computers in the cluster to facilitate access to the resources by the other computers. The architecture manager defines logical ownership relationships between data nodes and computers in the cluster to permit the architecture of the database to be dynamically reconfigured to provide improved performance.
    • 分布式数据库管理系统在一组计算机上实现。 集群包括组织为数据节点的磁盘。 数据节点本地连接到集群中的一台或多台计算机。 分布式数据库管理系统包括具有锁管理器,资源管理器和架构管理器的分布式数据库管理器层。 锁定管理器将访问集群中的数据节点序列化。 资源管理器维护集群中每台计算机的资源的数据表示,并使数据可用于集群中的其他计算机,以便其他计算机访问资源。 架构管理员定义集群中数据节点和计算机之间的逻辑所有权关系,以允许动态重新配置数据库的架构以提供改进的性能。
    • 18. 发明申请
    • Application configuration in distributed storage systems
    • 分布式存储系统中的应用程序配置
    • US20070038678A1
    • 2007-02-15
    • US11198592
    • 2005-08-05
    • James AllenMatthew HurasThomas MathewsLance Russell
    • James AllenMatthew HurasThomas MathewsLance Russell
    • G06F17/30
    • G06F9/5011
    • A method and system for enabling dynamic matching of storage utilization characteristics of a host system application with the characteristics of the available storage pools of an attached distributed storage system, in order to provide an optimal match between the application and selected storage pool. An abstraction manager is provided, enhanced with a storage device configuration utility/module, which performs a series of tasks to (1) obtain/collect the correct configuration information from each connected storage device or storage pools and/or (2) calculate the configuration information when the information is not readily available. The storage device configuration module then normalizes, collates and matches the configuration information to the various applications running on the host system and/or outputs the information to a user/administrator of the host system via a software interface. By using the collected/calculated configuration information, applications are assigned to an optimal storage pool in an intelligent and efficient manner.
    • 一种用于使主机系统应用程序的存储利用特性与附加分布式存储系统的可用存储池的特征能够动态匹配的方法和系统,以便提供应用程序和所选存储池之间的最佳匹配。 提供抽象管理器,增强了存储设备配置实用程序/模块,执行一系列任务以(1)从每个连接的存储设备或存储池获取/收集正确的配置信息和/或(2)计算配置 当信息不容易获得时的信息。 然后,存储设备配置模块将配置信息规范化,整理和匹配到主机系统上运行的各种应用和/或经由软件接口将信息输出到主机系统的用户/管理员。 通过使用收集/计算的配置信息,应用程序以智能和有效的方式分配给最佳存储池。