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1. 发明授权

US08671074B2 Logical replication in clustered database system with adaptive cloning 有权
标题翻译：具有适应性克隆的集群数据库系统中的逻辑复制
公开(公告)号：US08671074B2
公开(公告)日：2014-03-11
申请号：US12758045
申请日：2010-04-12
申请人： Rui Wang , Michael E. Habben , Qun Guo , Peter Byrne , Robin D. Dhamankar , Vishal Kathuria , Mahesh K. Sreenivas , Yixue Zhu , Xiaowei Jiang
发明人： Rui Wang , Michael E. Habben , Qun Guo , Peter Byrne , Robin D. Dhamankar , Vishal Kathuria , Mahesh K. Sreenivas , Yixue Zhu , Xiaowei Jiang
IPC分类号： G06F17/30
CPC分类号： G06F17/30309 , G06F9/466 , G06F11/2041 , G06F11/2048 , G06F11/2097 , G06F17/30578 , G06F2201/80 , G06F2201/82
摘要： Architecture that addresses an end-to-end solution for logical transactional replication from a shared-nothing clustered database management system, which uses adaptive cloning for high availability. This can be time based using a global logical timestamp. The disclosed architecture, used for refreshing stale clones, does not preserve user transaction boundaries, which is a more complex situation than where the boundaries are preserved. In such a scenario it is probable that for a given data segment no clone of the segment may contain the complete user transaction history, and hence, the history has to be pieced together from the logs of multiple different clones. This is accomplished such that log harvesting is coordinated with the clone state transitions to ensure the correctness of logical replication.
摘要翻译：架构解决了从无共享群集数据库管理系统进行逻辑事务复制的端到端解决方案，该系统使用自适应克隆实现高可用性。这可以使用全局逻辑时间戳记基于时间。用于刷新陈旧的克隆的公开架构不会保留用户事务边界，这比保留边界的情况更复杂。在这种情况下，对于给定的数据段，很可能没有段的克隆可能包含完整的用户事务历史，因此，历史必须从多个不同克隆的日志拼接在一起。这样做是为了使日志收集与克隆状态转换协调，以确保逻辑复制的正确性。

2. 发明申请

US20110251997A1 LOGICAL REPLICATION IN CLUSTERED DATABASE SYSTEM WITH ADAPTIVE CLONING 有权
标题翻译：具有自适应克隆的集群数据库系统中的逻辑复制
公开(公告)号：US20110251997A1
公开(公告)日：2011-10-13
申请号：US12758045
申请日：2010-04-12
申请人： Rui Wang , Michael E. Habben , Qun Guo , Peter Byrne , Robin D. Dhamankar , Vishal Kathuria , Mahesh K. Sreenivas , Yixue Zhu , Xiaowei Jiang
发明人： Rui Wang , Michael E. Habben , Qun Guo , Peter Byrne , Robin D. Dhamankar , Vishal Kathuria , Mahesh K. Sreenivas , Yixue Zhu , Xiaowei Jiang
IPC分类号： G06F17/30
CPC分类号： G06F17/30309 , G06F9/466 , G06F11/2041 , G06F11/2048 , G06F11/2097 , G06F17/30578 , G06F2201/80 , G06F2201/82
摘要： Architecture that addresses an end-to-end solution for logical transactional replication from a shared-nothing clustered database management system, which uses adaptive cloning for high availability. This can be time based using a global logical timestamp. The disclosed architecture, used for refreshing stale clones, does not preserve user transaction boundaries, which is a more complex situation than where the boundaries are preserved. In such a scenario it is probable that for a given data segment no clone of the segment may contain the complete user transaction history, and hence, the history has to be pieced together from the logs of multiple different clones. This is accomplished such that log harvesting is coordinated with the clone state transitions to ensure the correctness of logical replication.
摘要翻译：架构解决了从无共享群集数据库管理系统进行逻辑事务复制的端到端解决方案，该系统使用自适应克隆实现高可用性。这可以使用全局逻辑时间戳记基于时间。用于刷新陈旧的克隆的公开架构不会保留用户事务边界，这比保留边界的情况更复杂。在这种情况下，对于给定的数据段，很可能没有段的克隆可能包含完整的用户事务历史，因此，历史必须从多个不同克隆的日志拼接在一起。这样做是为了使日志收集与克隆状态转换协调，以确保逻辑复制的正确性。

3. 发明申请

US20100082551A1 DATA PLACEMENT TRANSPARENCY FOR HIGH AVAILABILITY AND LOAD BALANCING 审中-公开
标题翻译：数据放置高可用性和负载平衡的透明度
公开(公告)号：US20100082551A1
公开(公告)日：2010-04-01
申请号：US12238852
申请日：2008-09-26
申请人： Vishal Kathuria , Robert H. Gerber , Mahesh K. Sreenivas , Yixue Zhu , John Ludeman , Ashwin Shrinivas , Ming Chuan Wu
发明人： Vishal Kathuria , Robert H. Gerber , Mahesh K. Sreenivas , Yixue Zhu , John Ludeman , Ashwin Shrinivas , Ming Chuan Wu
IPC分类号： G06F17/30
CPC分类号： G06F16/24524 , G06F16/27
摘要： A method of updating a clone data map associated with a plurality of nodes of a computer system is disclosed. The clone data map includes node identification data and clone location data. A node failure event of a failed node of the computer system that supports a primary clone is detected. The clone data map is updated such that a secondary clone stored at a node other than the failed node is marked as a new primary clone. In addition, clone data maps may be used to perform node load balancing by placing a substantially similar number of primary clones on each node of a node cluster or may be used to increase or decrease a number of nodes of the node cluster. Further, data fragments that have a heavy usage or a large fragment size may be reduced in size by performing one or more data fragment split operations.
摘要翻译：公开了一种更新与计算机系统的多个节点相关联的克隆数据映射的方法。克隆数据图包括节点标识数据和克隆位置数据。检测到支持主克隆的计算机系统的故障节点的节点故障事件。更新克隆数据图，使得存储在除故障节点之外的节点的次级克隆被标记为新的主克隆。此外，克隆数据映射可以用于通过将基本上相似数量的主克隆放置在节点簇的每个节点上来执行节点负载平衡，或者可以用于增加或减少节点簇的多个节点。此外，可以通过执行一个或多个数据片段拆分操作来减小具有较大使用量或大片段大小的数据片段的大小。

4. 发明申请

US20100082546A1 Storage Tiers for Database Server System 审中-公开
标题翻译：数据库服务器系统的存储层
公开(公告)号：US20100082546A1
公开(公告)日：2010-04-01
申请号：US12241912
申请日：2008-09-30
申请人： Mahesh K. Sreenivas , Robert H. Gerber , Vishal Kathuria , John F. Ludeman , Ashwin Shrinivas , Michael A. Uhlar
发明人： Mahesh K. Sreenivas , Robert H. Gerber , Vishal Kathuria , John F. Ludeman , Ashwin Shrinivas , Michael A. Uhlar
IPC分类号： G06F17/30
CPC分类号： G06F16/221
摘要： A technique is described for storing data from a database across a plurality of data storage devices, wherein each data storage device is capable of being accessed only by a corresponding computer system in a group of interconnected computer systems. In accordance with the technique, an identifier of the database is received. An identifier of a storage tier instance is also received, wherein the storage tier instance comprises a logical representation of one or more storage locations within each of the data storage devices. Responsive to the receipt of the identifier of the database and the identifier of the storage tier instance, data from the database is stored in two or more of the storage locations logically represented by the storage tier instance, wherein each of the two or more storage locations in which data is stored is within a corresponding one of the data storage devices.
摘要翻译：描述了一种用于在多个数据存储设备中存储来自数据库的数据的技术，其中每个数据存储设备仅能够由一组互连的计算机系统中的对应的计算机系统访问。根据该技术，接收数据库的标识符。还接收存储层实例的标识符，其中存储层实例包括每个数据存储设备内的一个或多个存储位置的逻辑表示。响应于接收到数据库的标识符和存储层实例的标识符，来自数据库的数据被存储在由存储层实例逻辑表示的两个或多个存储位置中，其中两个或多个存储位置其中存储数据在相应的一个数据存储设备内。

5. 发明申请

US20100223443A1 MULTI-PROTOCOL ACCESS TO FILES AND DIRECTORIES 失效
标题翻译：多协议访问文件和目录
公开(公告)号：US20100223443A1
公开(公告)日：2010-09-02
申请号：US12771660
申请日：2010-04-30
申请人： Arkadi Brjazovski , Rohan Kumar , Sameet H. Agarwal , Stefan R. Steiner , Mahesh K. Sreenivas
发明人： Arkadi Brjazovski , Rohan Kumar , Sameet H. Agarwal , Stefan R. Steiner , Mahesh K. Sreenivas
IPC分类号： G06F12/00
CPC分类号： G06F9/52 , Y10S707/99952
摘要： An operating system is provided. The system includes an agent component to monitor computer activities between one or more single-item access components and one or more set-based access components. A protocol component is employed by the agent component to mitigate data access between the single-item access components and the set-based access components.
摘要翻译：提供操作系统。该系统包括代理组件，用于监视一个或多个单项访问组件与一个或多个基于组的访问组件之间的计算机活动。代理组件采用协议组件来减轻单项访问组件与基于组的访问组件之间的数据访问。

6. 发明申请

US20080141260A1 USER MODE FILE SYSTEM SERIALIZATION AND RELIABILITY 失效
标题翻译：用户模式文件系统串行化和可靠性
公开(公告)号：US20080141260A1
公开(公告)日：2008-06-12
申请号：US11608703
申请日：2006-12-08
申请人： Arkadi Brjazovski , Rohan Kumar , Cristian Diaconu , Oleksandr Gololobov , Mahesh K. Sreenivas
发明人： Arkadi Brjazovski , Rohan Kumar , Cristian Diaconu , Oleksandr Gololobov , Mahesh K. Sreenivas
IPC分类号： G06F13/14 , G06F9/50
CPC分类号： G06F9/542 , G06F9/541 , G06F2209/542 , G06F2209/543
摘要： An operating system is provided. The system includes an agent components (SIAC) and one or more set-based access components (SBAC). An interface component is employed by the agent component to process kernel mode requests from a user mode application when communicating with a storage platform. Re-try components can be provided to facilitate cooperation between the SIAC and the SBAC.
摘要翻译：提供操作系统。该系统包括代理组件（SIAC）和一个或多个基于组的访问组件（SBAC）。当与存储平台通信时，代理组件使用接口组件来处理来自用户模式应用的内核模式请求。可以提供重新组合以促进SIAC与SBAC之间的合作。

7. 发明申请

US20080147665A1 MULTI-PROTOCOL ACCESS TO FILES AND DIRECTORIES 失效
标题翻译：多协议访问文件和目录
公开(公告)号：US20080147665A1
公开(公告)日：2008-06-19
申请号：US11612105
申请日：2006-12-18
申请人： Arkadi Brjazovski , Rohan Kumar , Sameet H. Agarwal , Stefan R. Steiner , Mahesh K. Sreenivas
发明人： Arkadi Brjazovski , Rohan Kumar , Sameet H. Agarwal , Stefan R. Steiner , Mahesh K. Sreenivas
IPC分类号： G06F17/30
CPC分类号： G06F9/52 , Y10S707/99952
摘要： An operating system is provided. The system includes an agent component to monitor computer activities between one or more single-item access components and one or more set-based access components. A protocol component is employed by the agent component to mitigate data access conflicts between the single-item access components and the set-based access components.
摘要翻译：提供操作系统。该系统包括代理组件，用于监视一个或多个单项访问组件与一个或多个基于组的访问组件之间的计算机活动。代理组件采用协议组件来减轻单项访问组件与基于组的访问组件之间的数据访问冲突。

8. 发明授权

US07925681B2 Bypass of the namespace hierarchy to open files 有权
标题翻译：绕过命名空间层次结构打开文件
公开(公告)号：US07925681B2
公开(公告)日：2011-04-12
申请号：US11413225
申请日：2006-04-28
申请人： Mahesh K. Sreenivas , Stefan R. Steiner , Arkadi Brjazovski , Sameet H. Agarwal
发明人： Mahesh K. Sreenivas , Stefan R. Steiner , Arkadi Brjazovski , Sameet H. Agarwal
IPC分类号： G06F12/00
CPC分类号： G06F17/3012 , G06F17/30165
摘要： A file namespace hierarchy bypass and method to access files are provided. The bypass can be employed, for example, as a computer-readable medium with instructions for generating a unique identifier associated with a file and instructions for accessing the file based on the unique identifier and a specified search space. A computer-readable medium having instructions for obtaining the unique identifier and specified search space associated with the file and instructions for generating a path designation by combining the unique identifier and the specified search space used to access the file may also be employed. The method for bypassing the namespace hierarchy of the file, for example, may include passing the unique identifier and specified search space to a program and accessing the file based on a path designation generated by the program by combining the unique identifier and specified search space.
摘要翻译：提供文件命名空间层次结构绕过和访问文件的方法。旁路可以例如被用作具有用于生成与文件相关联的唯一标识符的指令的计算机可读介质和基于唯一标识符和指定搜索空间来访问文件的指令。也可以采用具有用于获得与文件相关联的唯一标识符和指定搜索空间的指令的计算机可读介质，以及用于通过组合唯一标识符和用于访问文件的指定搜索空间来生成路径指定的指令。例如，用于绕过文件的命名空间层次结构的方法可以包括将唯一标识符和指定的搜索空间传递给程序，并且基于由程序生成的路径指定，通过组合唯一标识符和指定的搜索空间来访问该文件。

9. 发明授权

US07478116B2 Mechanism to exchange primary data stream of a file 有权
标题翻译：交换文件的主数据流的机制
公开(公告)号：US07478116B2
公开(公告)日：2009-01-13
申请号：US11356940
申请日：2006-02-17
申请人： Mahesh K. Sreenivas , Arkadi Brjazovski , Stefan R. Steiner , Rohan Kumar , Sameet H. Agarwal
发明人： Mahesh K. Sreenivas , Arkadi Brjazovski , Stefan R. Steiner , Rohan Kumar , Sameet H. Agarwal
IPC分类号： G06F12/00
CPC分类号： G06F17/30067 , Y10S707/99953 , Y10S707/99954
摘要： A file stream exchange system and method are provided. The system can be employed, for example, with a storage system that supports transactions as a primary mechanism and employs a rich type system. The system provides a mechanism for the storage system to provide reliable updates to file streams while preserving the common criteria for security. The system includes a replace stream component which is a kernel mode mechanism that allows transactional exchange of stream data of two file-backed items without violating the common criteria for security.
摘要翻译：提供文件流交换系统和方法。该系统可以例如使用支持事务作为主要机制的存储系统并且使用富型系统。该系统为存储系统提供一种机制，为文件流提供可靠的更新，同时保留了用于安全性的通用标准。该系统包括一个替代流组件，它是一种内核模式机制，允许两个文件支持项目的流数据的事务交换，而不会违反通用的安全标准。

10. 发明授权

US07970747B2 Multi-protocol access to files and directories 失效
标题翻译：多协议访问文件和目录
公开(公告)号：US07970747B2
公开(公告)日：2011-06-28
申请号：US12771660
申请日：2010-04-30
申请人： Arkadi Brjazovski , Rohan Kumar , Sameet H. Agarwal , Stefan R. Steiner , Mahesh K. Sreenivas
发明人： Arkadi Brjazovski , Rohan Kumar , Sameet H. Agarwal , Stefan R. Steiner , Mahesh K. Sreenivas
IPC分类号： G06F7/00 , G06F12/00
CPC分类号： G06F9/52 , Y10S707/99952
摘要： An operating system is provided. The system includes an agent component to monitor computer activities between one or more single-item access components and one or more set-based access components. A protocol component is employed by the agent component to mitigate data access between the single-item access components and the set-based access components.
摘要翻译：提供操作系统。该系统包括代理组件，用于监视一个或多个单项访问组件与一个或多个基于组的访问组件之间的计算机活动。代理组件采用协议组件来减轻单项访问组件与基于组的访问组件之间的数据访问。

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