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1. 发明授权

US07406481B2 Using direct memory access for performing database operations between two or more machines 有权
标题翻译：使用直接内存访问来执行两台或多台机器之间的数据库操作
公开(公告)号：US07406481B2
公开(公告)日：2008-07-29
申请号：US10323561
申请日：2002-12-17
申请人： Debashis Saha , John Ciminski , Debashish Chatterjee , Lakshminarayan Chidambaran
发明人： Debashis Saha , John Ciminski , Debashish Chatterjee , Lakshminarayan Chidambaran
IPC分类号： G06F7/00
CPC分类号： H04L49/90 , G06F13/28 , Y10S707/99931 , Y10S707/99932 , Y10S707/99945 , Y10S707/99948
摘要： Direct memory accessed is used to perform database operations between two or more machines. A first segment of memory is allocated for a second machine, where at least one of the first machine and second machine is a database server. During performance of a database operation that involves the transfer of data from the second machine to the first machine, data in the first segment of memory is buffered in response to the second machine writing the data to a second segment of memory on the second machine.
摘要翻译：直接访问内存用于执行两台或多台机器之间的数据库操作。为第二机器分配第一段存储器，其中第一机器和第二机器中的至少一个是数据库服务器。在执行涉及将数据从第二机器传送到第一机器的数据库操作期间，响应于第二机器将数据写入第二机器上的第二存储器段，缓冲第一段存储器中的数据。

2. 发明授权

US08161536B1 Authenticating sessions in queryable caches 有权
标题翻译：在可查询的缓存中验证会话
公开(公告)号：US08161536B1
公开(公告)日：2012-04-17
申请号：US09881537
申请日：2001-06-14
申请人： Mahesh Subramaniam , Debashish Chatterjee , Debashis Saha , Lakshminarayanan Chidambaran
发明人： Mahesh Subramaniam , Debashish Chatterjee , Debashis Saha , Lakshminarayanan Chidambaran
IPC分类号： H04L29/06
CPC分类号： H04L67/2814 , H04L63/083 , H04L63/0884
摘要： Techniques for authenticating users when an operation requested by a user in one of the systems of a distributed system is redirected to another system of the distributed system. The user is authenticated in the usual way to the one system but is authenticated to the other system for the redirected operation by an authentication proxy in the first system. The fact that the authentication proxy is providing a redirected operation means that the user who requested the operation has been authenticated to the one system. The other system is thus able to authenticate the user for the redirected operation with different authentication information than would otherwise be required. An example of how the techniques are used is a distributed database system where one of the database systems in the distributed system is a cache for another of the database systems.
摘要翻译：当用户在分布式系统的一个系统中请求的操作被重定向到分布式系统的另一个系统时，用于认证用户的技术。用户以通常的方式对一个系统进行认证，但是通过第一系统中的认证代理对另一个系统进行重定向操作的认证。认证代理提供重定向操作的事实意味着请求操作的用户已被认证到一个系统。因此，另一个系统能够以与否则需要的不同的认证信息来认证重定向操作的用户。如何使用这些技术的一个例子是分布式数据库系统，其中分布式系统中的一个数据库系统是另一个数据库系统的高速缓存。

3. 发明授权

US07580971B1 Method and apparatus for efficient SQL processing in an n-tier architecture 有权
标题翻译：用于在n层体系结构中进行有效的SQL处理的方法和装置
公开(公告)号：US07580971B1
公开(公告)日：2009-08-25
申请号：US09953490
申请日：2001-09-10
申请人： Sreenivas Gollapudi , Debashis Saha , Anindo Roy , Lakshminarayanan Chidambaran , Debashish Chatterjee
发明人： Sreenivas Gollapudi , Debashis Saha , Anindo Roy , Lakshminarayanan Chidambaran , Debashish Chatterjee
IPC分类号： G06F15/16
CPC分类号： G06F17/30474 , G06F17/3048 , H04L67/1097
摘要： A method and apparatus for efficiently processing data requests in a network oriented n-tier database environment is presented. According to one embodiment of the invention, certain or all data from the tables of a database server device can be maintained in tables on the client device in a client side database cache server system. This local cache allows the network oriented n-tier database system to eliminate the expense of repetitive network transmissions to respond to duplicate queries for the same information. Additionally, the local client device may also keep track of what data is cached on peer network nodes. This allows the client to request that data from a peer database cache server and off load that burden from the database server device. Moreover, the local client may also keep statistics regarding the frequency of requested data in order to optimize the data set maintained in the local database cache server.
摘要翻译：提出了一种在面向网络的n层数据库环境中有效处理数据请求的方法和装置。根据本发明的一个实施例，来自数据库服务器设备的表的某些或所有数据可以在客户机侧数据库高速缓存服务器系统中的客户端设备的表中维护。该本地缓存允许面向网络的n层数据库系统消除重复网络传输的费用，以响应相同信息的重复查询。此外，本地客户端设备还可以跟踪在对等网络节点上高速缓存哪些数据。这允许客户端从对等数据库缓存服务器请求数据，并从数据库服务器设备卸载负担。此外，本地客户端还可以保持关于所请求数据的频率的统计信息，以便优化本地数据库缓存服务器中维护的数据集。

4. 发明授权

US06721809B1 Method and apparatus for configuring extensible application programming interfaces 有权
标题翻译：用于配置可扩展应用程序编程接口的方法和装置
公开(公告)号：US06721809B1
公开(公告)日：2004-04-13
申请号：US09643318
申请日：2000-08-21
申请人： Anindo Roy , M. Shoaib Lari , Sreenivas Gollupudi , Debashis Saha , Lakshminarayanan Chidambaran , Debashish Chatterjee
发明人： Anindo Roy , M. Shoaib Lari , Sreenivas Gollupudi , Debashis Saha , Lakshminarayanan Chidambaran , Debashish Chatterjee
IPC分类号： G06F900
CPC分类号： G06F9/44521
摘要： One embodiment of the present invention provides a system that modifies a function defined within an application programming interface (API) so that the function includes additional code. The system receives an additional code module to be integrated into the function within the API. The system also receives a command to integrate the additional code module into the function. This command is received through a pre-defined function within the API for integrating additional code into functions within the API. In response to the command, the system links the additional code into the function so that the additional code module is executed when the function is called. In one embodiment of the present invention, linking the additional code module into the function involves linking the additional code module as an entry function that is executed at the beginning of the function. In one embodiment of the present invention, linking the additional code module into the function involves linking the additional code module as an exit function that is executed at the end of the function. In one embodiment of the present invention, linking the additional code module into the function involves linking the additional code module as a replacement for original code for the function.
摘要翻译：本发明的一个实施例提供一种修改在应用编程接口（API）内定义的功能的系统，使得该功能包括附加代码。系统接收一个附加的代码模块，以集成到API内的函数中。该系统还接收一个将附加代码模块集成到该功能中的命令。该命令通过API中的预定义函数接收，用于将附加代码集成到API中的函数中。响应命令，系统将附加代码链接到函数中，以便在调用函数时执行附加代码模块。在本发明的一个实施例中，将附加代码模块链接到功能中涉及将附加代码模块链接为在功能开始时执行的输入函数。在本发明的一个实施例中，将附加代码模块链接到功能中涉及将附加代码模块链接为在功能结束时执行的退出函数。在本发明的一个实施例中，将附加代码模块链接到功能中涉及链接附加代码模块作为功能的原始代码的替换。

5. 发明授权

US08825805B2 Method and mechanism for reducing client-side memory footprint of transmitted data 有权
标题翻译：减少传输数据的客户端内存占用的方法和机制
公开(公告)号：US08825805B2
公开(公告)日：2014-09-02
申请号：US11411247
申请日：2006-04-25
申请人： Sreenivas Gollapudi , Debashish Chatterjee
发明人： Sreenivas Gollapudi , Debashish Chatterjee
IPC分类号： G06F15/16
CPC分类号： G06F17/30156 , G06F17/30595 , G06F17/30902 , H04L67/2828 , H04L67/42 , H04L69/04
摘要： The present invention is directed to a method and mechanism for reducing the expense of data transmissions between a client and a server. According to an aspect of data prefetching is utilized to predictably retrieve information between the client and server. Another aspect pertains to data redundancy management for reducing the expense of transmitting and storing redundant data between the client and server. Another aspect relates to moved data structures for tracking and managing data at a client in conjunction with data redundancy management.
摘要翻译：本发明涉及一种减少客户端与服务器之间的数据传输费用的方法和机制。根据数据预取的一个方面用于可预测地在客户端和服务器之间检索信息。另一方面涉及数据冗余管理，以减少在客户端和服务器之间传输和存储冗余数据的费用。另一方面涉及移动的数据结构，用于跟踪和管理客户端的数据并结合数据冗余管理。

6. 发明授权

US07516221B2 Hierarchical management of the dynamic allocation of resources in a multi-node system 有权
标题翻译：多节点系统资源动态分配的层次管理
公开(公告)号：US07516221B2
公开(公告)日：2009-04-07
申请号：US10917873
申请日：2004-08-12
申请人： Benny Souder , Debashish Chatterjee , Lakshminarayanan Chidambaran , David Brower , Carol Colrain , Daniel Semler , Christopher A. Kantarjiev , James W. Stamos
发明人： Benny Souder , Debashish Chatterjee , Lakshminarayanan Chidambaran , David Brower , Carol Colrain , Daniel Semler , Christopher A. Kantarjiev , James W. Stamos
IPC分类号： G06F15/173 , G06F12/00
CPC分类号： G06F11/3433 , G06F9/5027 , G06F9/5061 , G06F11/3495 , G06F2201/80 , G06F2201/87 , G06F2209/501 , H04L29/08279 , H04L41/5009 , H04L41/5038
摘要： Approaches are used for efficiently and effectively managing the dynamic allocation of resources of multi-node database systems between services provided by the multi-node database server. A service is a category of work that is hosted on the database server. The approaches manage allocation of resources at different levels. For services that use a particular database, the performance realized by the services is monitored. Resources assigned to the database are allocated between these services to ensure performance goals for each are met. Resources assigned to a cluster of nodes are allocated between the databases to ensure that performance goals for all the services that use the databases are met. Resources assigned to a farm of clusters are assigned amongst clusters based on service level agreements and back-end policies. The approach uses a hierarchy of directors to manage resources at the different levels.
摘要翻译：方法用于在由多节点数据库服务器提供的服务之间有效和有效地管理多节点数据库系统的资源的动态分配。服务是托管在数据库服务器上的一类工作。这些方法管理不同层次的资源分配。对于使用特定数据库的服务，将监视服务实现的性能。分配给数据库的资源在这些服务之间分配，以确保满足每个服务的性能目标。分配给节点集群的资源在数据库之间分配，以确保满足使用数据库的所有服务的性能目标。根据服务级别协议和后端策略，在集群中分配分配给集群场的资源。该方法使用董事级别来管理不同级别的资源。

7. 发明申请

US20060036617A1 Suspending a result set and continuing from a suspended result set for transparent session migration 有权
公开(公告)号：US20060036617A1
公开(公告)日：2006-02-16
申请号：US11097862
申请日：2005-04-01
申请人： Mehul Bastawala , Lakshminarayanan Chidambaran , Sreenivas Gollapudi , Sanjay Kaluskar , Srinath Krishnaswamy , Debashish Chatterjee
发明人： Mehul Bastawala , Lakshminarayanan Chidambaran , Sreenivas Gollapudi , Sanjay Kaluskar , Srinath Krishnaswamy , Debashish Chatterjee
IPC分类号： G06F7/00
CPC分类号： G06F17/30595 , Y10S707/99953
摘要： A system, method, computer program and system for suspending a result set and continuing from a suspended result set for transparent session migration is disclosed. The rows from a row source are suspended into storage, so that after session migration, the client fetches can transparently continue from the suspended result set.

8. 发明申请

US20050055446A1 Incremental run-time session balancing in a multi-node system 有权
标题翻译：多节点系统中的增量运行时会话平衡
公开(公告)号：US20050055446A1
公开(公告)日：2005-03-10
申请号：US10918055
申请日：2004-08-12
申请人： Lakshminarayanan Chidambaran , Debashish Chatterjee , James Stamos
发明人： Lakshminarayanan Chidambaran , Debashish Chatterjee , James Stamos
IPC分类号： G06F15/173
CPC分类号： G06F9/5088
摘要： An approach migrates database sessions from a database server on which performance and resource availability requirements are not being met to another database server. Because workload is removed from the database server not meeting these requirements, improved performance there is promoted. Furthermore, the approach switches the users in a way that attempts to keep performance and resource availability levels at the database server receiving the database sessions within goals for performance and resource availability.
摘要翻译：一种方法将数据库会话从数据库服务器迁移到哪个性能和资源可用性要求未被满足到另一个数据库服务器。因为从不符合这些要求的数据库服务器中删除工作负载，因此提升了性能。此外，该方法以一种尝试在数据库服务器上保持性能和资源可用性级别的方式切换用户，以在性能和资源可用性的目标内接收数据库会话。

9. 发明授权

US06243751B1 Method and apparatus for coupling clients to servers 失效
标题翻译：将客户机连接到服务器的方法和设备
公开(公告)号：US06243751B1
公开(公告)日：2001-06-05
申请号：US08872529
申请日：1997-06-11
申请人： Debashish Chatterjee , John Bellemore , Amit Jasuja
发明人： Debashish Chatterjee , John Bellemore , Amit Jasuja
IPC分类号： G06F1516
CPC分类号： H04L67/14 , H04L29/12924 , H04L61/6063 , H04L69/32
摘要： A method and apparatus allows clients to share ports on a server. The server can maintain more sessions than server ports. When a client sends a command directed to the server, a resource manager inserted between the clients and the server intercepts the command and directs the server to select the session associated with a client prior to or at the same time that the resource manager forwards the intercepted command to the server. Responses from the server are forwarded by the resource manager to the client that sent the command to which the response relates. The resource manager may be coupled to multiple clients, and one or more ports of one or more servers.
摘要翻译：一种方法和设备允许客户机在服务器上共享端口。服务器可以维护比服务器端口更多的会话。当客户端发送指向服务器的命令时，插入客户端和服务器之间的资源管理器截取该命令，并指示服务器在资源管理器转发截取的数据之前或同时选择与客户端相关联的会话命令到服务器。来自服务器的响应由资源管理器转发给发送响应所涉及的命令的客户端。资源管理器可以耦合到多个客户端以及一个或多个服务器的一个或多个端口。

10. 发明授权

US07827141B2 Dynamically sizing buffers to optimal size in network layers when supporting data transfers related to database applications 有权
标题翻译：在支持与数据库应用程序相关的数据传输时，动态调整缓冲区以优化网络层面的大小
公开(公告)号：US07827141B2
公开(公告)日：2010-11-02
申请号：US10908069
申请日：2005-04-27
申请人： Amit Bande , Krishna Mohan Itikarlapalli , Debashish Chatterjee
发明人： Amit Bande , Krishna Mohan Itikarlapalli , Debashish Chatterjee
IPC分类号： G06F15/16
CPC分类号： G06F17/3048 , H04L49/90
摘要： In transferring data from/to a database server, the size of a network buffer used by a network layer is dynamically adjusted according to the call type and expected size of data to be transferred for the call. Due to such use of appropriate buffer size, throughput performance of the transfer may be enhanced.
摘要翻译：在将数据从数据库服务器传送到数据库服务器时，由网络层使用的网络缓冲区的大小根据呼叫类型和要传送的数据的预期大小进行动态调整。由于这种使用适当的缓冲器大小，可以提高传送的吞吐量性能。

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