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1. 发明授权

US5764905A Method, system and computer program product for synchronizing the flushing of parallel nodes database segments through shared disk tokens 失效
标题翻译：用于通过共享磁盘令牌同步并行节点数据库段的刷新的方法，系统和计算机程序产品
公开(公告)号：US5764905A
公开(公告)日：1998-06-09
申请号：US711235
申请日：1996-09-09
申请人： John R. Catozzi , Sorana Rabinovici
发明人： John R. Catozzi , Sorana Rabinovici
IPC分类号： G06F9/46 , G06F15/163
CPC分类号： G06F9/52 , Y10S707/99933 , Y10S707/99953
摘要： A processor method and apparatus for parallel computer systems for synchronizing the flushing of database segments by a node through shared disk tokens. The system provides for flushing database segments at each of the processor nodes through use of a persistent storage semaphore stored as a plurality of disk tokens and a set of control flags in a synchronization segment on a shared data storage device.
摘要翻译：一种用于并行计算机系统的处理器方法和装置，用于通过共享磁盘令牌来同步节点对数据库段的刷新。该系统通过使用存储为多个磁盘令牌的持久存储信号和在共享数据存储设备上的同步段中的一组控制标志来提供在每个处理器节点处刷新数据库段。

2. 发明授权

US07571439B1 Synchronizing access to global resources 有权
标题翻译：同步访问全局资源
公开(公告)号：US07571439B1
公开(公告)日：2009-08-04
申请号：US10160753
申请日：2002-05-31
申请人： Sorana Rabinovici , Kenneth Nishihara
发明人： Sorana Rabinovici , Kenneth Nishihara
IPC分类号： G06F9/46 , G06F17/30 , G06F12/00
CPC分类号： G06F9/526 , G06F17/30362 , Y10S707/99938
摘要： A method, data structure, and database system for synchronizing access to a global resource by a plurality of processes executing on a computer system are disclosed. A global lock is defined for the global resource and a local instantiation of the global lock is defined for each of the plurality of processes that will access the global resource.
摘要翻译：公开了一种通过在计算机系统上执行的多个进程同步对全局资源的访问的方法，数据结构和数据库系统。为全局资源定义全局锁定，并且为访问全局资源的多个进程中的每个进程定义全局锁定的本地实例。

3. 发明授权

US07401191B1 System and method for performing disk write operations by writing to a data depot prior to an in-place write 有权
标题翻译：通过在就地写入之前写入数据仓库执行磁盘写操作的系统和方法
公开(公告)号：US07401191B1
公开(公告)日：2008-07-15
申请号：US10857790
申请日：2004-05-28
申请人： Sorana Rabinovici , Steven B. Cohen
发明人： Sorana Rabinovici , Steven B. Cohen
IPC分类号： G06F13/00
CPC分类号： G06F11/1474 , G06F3/0601 , G06F11/1004 , G06F11/1471 , G06F2003/0692
摘要： Methods, computer programs, information handling systems, and state machines for performing an atomic write to a data block area are disclosed. The atomic write is an in-place write> The method includes receiving one or more data blocks to write to the data block area; and for each data block received: writing the data block to the depot slot; and writing the data block to the data block area after the data block write to the depot slot is completed.
摘要翻译：公开了用于对数据块区进行原子写入的方法，计算机程序，信息处理系统和状态机。原子写入是就地写入>该方法包括接收一个或多个数据块以写入数据块区域; 并且对于接收到的每个数据块：将数据块写入仓库槽; 并且在完成对存储槽的写入数据块之后将数据块写入数据块区域。

4. 发明授权

US06505284B1 File segment subsystem for a parallel processing database system 有权
标题翻译：用于并行处理数据库系统的文件段子系统
公开(公告)号：US06505284B1
公开(公告)日：2003-01-07
申请号：US09603786
申请日：2000-06-26
申请人： Sorana Rabinovici , Dennis R. Calkins
发明人： Sorana Rabinovici , Dennis R. Calkins
IPC分类号： G06F1200
CPC分类号： G06F12/0871 , G06F2212/311
摘要： A File SeGment (FSG) subsystem of a PDE (parallel database extension) provides services for managing and allocating secondary memory such as cache, providing data commits and retrieval operations on disk, and providing routines to perform disk I/O (Input/Output) and other memory operations for a file system. The FSG subsystem provides for the determination of the amount of cache that may be utilized, locking that portion of cache, using a buddy memory management system to manage the cache, using one or more hash aging queues to determine when to free up cache, permitting preloads of data into the cache, and asynchronously accepting an I/O completion action from a user prior to completion of an operation and performing such an I/O completion action.
摘要翻译： PDE（并行数据库扩展）的文件SeGment（FSG）子系统提供用于管理和分配辅助存储器的服务，例如高速缓存，在磁盘上提供数据提交和检索操作，以及提供执行磁盘I / O（输入/输出）和文件系统的其他内存操作。 FSG子系统使用一个或多个哈希老化队列来确定可以利用的高速缓存量，使用好友存储器管理系统来锁定该部分高速缓存，以使用一个或多个哈希老化队列来确定何时释放缓存，允许将数据预加载到高速缓存中，并且在完成操作之前异步地接受来自用户的I / O完成操作并执行这样的I / O完成动作。

5. 发明申请

US20120159066A1 SYSTEM AND METHOD FOR PERFORMING CONTIGUOUS DISK READ ON PSEUDO-CONTIGUOUS DATA BLOCKS WITHIN A DATABASE MANAGEMENT SYSTEM 审中-公开
标题翻译：用于在数据库管理系统中执行连续数据块的连续盘读取的系统和方法
公开(公告)号：US20120159066A1
公开(公告)日：2012-06-21
申请号：US12971012
申请日：2010-12-17
申请人： Sorana Rabinovici , Suzhen Lin
发明人： Sorana Rabinovici , Suzhen Lin
IPC分类号： G06F12/08
CPC分类号： G06F12/0868 , G06F3/0611 , G06F3/064 , G06F3/067 , G06F12/10 , G06F2212/163
摘要： A system and method to facilitate cache management and improve disk read performance for database systems with large memory and large disks. A contiguous read feature is employed to read multiple pseudo-contiguous data blocks in one large I/O from disk storage into cache memory. The contiguous read feature loads the disk area containing pseudo-contiguous data blocks by issuing a single disk read. A separate virtual space and memory page list is created for each data block, and the page lists are reunited to create one I/O. The pseudo-contiguity of two data blocks is determined by comparing the distance between them, i.e., the size of the hole between the two data blocks, with a predefined maximum distance, over which it is more effective to read the data blocks independently.
摘要翻译：一种用于高速缓存管理和提高具有大内存和大型磁盘的数据库系统的磁盘读取性能的系统和方法。采用连续的读取特征来读取从磁盘存储器到高速缓冲存储器的一个大的I / O中的多个伪连续的数据块。连续读取功能通过发出单个磁盘读取来加载包含伪连续数据块的磁盘区域。为每个数据块创建一个单独的虚拟空间和内存页面列表，并重新排列页面列表以创建一个I / O。通过将两个数据块之间的距离（即两个数据块之间的孔的大小）与预定义的最大距离进行比较来确定两个数据块的伪邻接，通过该预定最大距离，独立地读取数据块更有效。

6. 发明授权

US06505285B1 Scratch segment subsystem for a parallel processing database system 有权
标题翻译：用于并行处理数据库系统的划痕子系统
公开(公告)号：US06505285B1
公开(公告)日：2003-01-07
申请号：US09603787
申请日：2000-06-26
申请人： Sorana Rabinovici , Daniel H. Miller
发明人： Sorana Rabinovici , Daniel H. Miller
IPC分类号： G06F1200
CPC分类号： G06F12/0284 , Y10T156/1013 , Y10T156/1021
摘要： One or more embodiments of the invention provide for a SEG (segment) subsystem of a parallel database extension (PDE) that provides services for creating, manipulating, and destroying access to data segments in address space. The SEG subsystem works with transient segments (also referred to as scratch segments) that are created as offsets in a “well-known” file created during initialization of the PDE. The offsets are stored in objects/elements in a queue in the virtual address space of the SEG subsystem. Upon partitioning addressable memory into one or more scratch segments, obtaining the offsets for the scratch segments, and mapping the offsets into the SEG system's virtual address space, the physical memory is locked. When the scratch segments are needed, an element/object from the queue containing the appropriate size scratch segment is mapped into the requestor's address space. Once mapped to the requestor's address space, the element is unmapped from the SEG's virtual address space. Thereafter, the requestor can utilize the scratch segment as desired (in accordance with the access granted by the SEG subsystem).
摘要翻译：本发明的一个或多个实施例提供并行数据库扩展（PDE）的SEG（段）子系统，其提供用于创建，操纵和销毁对地址空间中的数据段的访问的服务。 SEG子系统与在PDE初始化期间创建的“知名”文件中的偏移创建的瞬态段（也称为scratch段）配合使用。偏移量存储在SEG子系统的虚拟地址空间中的队列中的对象/元素中。在将可寻址存储器划分成一个或多个暂存段时，获得暂存段的偏移量，并将偏移映射到SEG系统的虚拟地址空间中，物理存储器被锁定。当需要scratch段时，包含适当大小scratch段的队列中的元素/对象被映射到请求者的地址空间中。一旦映射到请求者的地址空间，该元素将从SEG的虚拟地址空间中取消映射。此后，请求者可以根据需要（根据SEG子系统授予的访问）利用划痕段。

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