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1. 发明申请

US20070143299A1 Commitment of transactions in a distributed system 有权
标题翻译：在分布式系统中承诺交易
公开(公告)号：US20070143299A1
公开(公告)日：2007-06-21
申请号：US11312994
申请日：2005-12-19
申请人： Matthew Huras , Timothy Vincent
发明人： Matthew Huras , Timothy Vincent
IPC分类号： G06F17/30
CPC分类号： G06F9/466
摘要： 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.
摘要翻译：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。

2. 发明申请

US20060020634A1 Method, system and program for recording changes made to a database 审中-公开
标题翻译：用于记录对数据库所做更改的方法，系统和程序
公开(公告)号：US20060020634A1
公开(公告)日：2006-01-26
申请号：US10896272
申请日：2004-07-20
申请人： Matthew Huras , Sarah Posner , James Fleet , Roger Zheng
发明人： Matthew Huras , Sarah Posner , James Fleet , Roger Zheng
IPC分类号： G06F17/30
CPC分类号： G06F16/2358
摘要： A method, computer program product and database management system for recording a change to a database in a log including a plurality of log records. The database management system is capable of concurrently processing and logging multiple database changes. A tracking descriptor is used in conjunction with first and second identifiers for each log record to reduce the amount of logic executed using latching for each log record.
摘要翻译：一种用于在包括多个日志记录的日志中记录对数据库的改变的方法，计算机程序产品和数据库管理系统。数据库管理系统能够同时处理和记录多个数据库更改。跟踪描述符与每个日志记录的第一和第二标识符一起使用，以减少使用每个日志记录的锁存执行的逻辑量。

3. 发明申请

US20090019447A1 Adaptive Throttling System for Data Processing Systems 有权
标题翻译：数据处理系统的自适应调节系统
公开(公告)号：US20090019447A1
公开(公告)日：2009-01-15
申请号：US12136486
申请日：2008-06-10
申请人： Joseph L. Hellerstein , Matthew Huras , Sam Lightstone , Sujay S. Parekh , Kevin R. Rose
发明人： Joseph L. Hellerstein , Matthew Huras , Sam Lightstone , Sujay S. Parekh , Kevin R. Rose
IPC分类号： G06F9/46
CPC分类号： G06F9/4843 , G06Q10/04
摘要： An adaptive throttling system for minimizing the impact of non-production work on production work in a computer system is provided. The adaptive throttling system throttles production work and non-production work to optimize production. The adaptive throttling system allows system administrators to specify a quantified limit on the performance impact of non-production or utility work on production work. The throttling rate of the utility is then automatically determined by a supervisory agent, so that the utilities' impact is kept within the specified limit. The adaptive throttling system adapts dynamically to changes in workloads so as to ensure that valuable system resources are well utilized and utility work is not delayed unnecessarily.
摘要翻译：提供了一种用于最小化非生产工作对计算机系统中的生产工作的影响的自适应节流系统。自适应节流系统节约生产工作和非生产工作，优化生产。自适应调节系统允许系统管理员指定非生产或公用事业工作对生产工作的绩效影响的量化限制。公用事业的节流率由监督人员自动确定，使公用事业的影响力保持在规定的限度内。自适应调节系统动态地适应工作负载的变化，以确保有价值的系统资源得到充分利用，并且公用事业工作不会不必要地延迟。

4. 发明申请

US20050192977A1 System, method and program for assessing the activity level of a database management system 失效
标题翻译：用于评估数据库管理系统的活动级别的系统，方法和程序
公开(公告)号：US20050192977A1
公开(公告)日：2005-09-01
申请号：US10788582
申请日：2004-02-27
申请人： Matthew Huras , Kevin Rose , Aamer Sachedina
发明人： Matthew Huras , Kevin Rose , Aamer Sachedina
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F11/3409 , G06F17/3048 , G06F2201/80 , G06F2201/88 , G06F2201/885
摘要： A system and method for assessing the activity level of a database management system. The number of page fix operations performed by execution units of a database management system can be counted and used to compute a measure for the activity level of the database management system. In one embodiment of the invention, multiple counters are used to count the page fix operations. This and other embodiments of the invention facilitate activity level assessment without incurring significant performance penalty.
摘要翻译：一种用于评估数据库管理系统的活动级别的系统和方法。可以对数据库管理系统的执行单元执行的页面修复操作的数量进行计数，并用于计算数据库管理系统的活动级别的度量。在本发明的一个实施例中，使用多个计数器来计数页面修复操作。本发明的这个和其他实施例便于活动水平评估，而不会导致显着的性能损失。

5. 发明申请

US20050050443A1 System and method for starting a buffer pool 失效
标题翻译：启动缓冲池的系统和方法
公开(公告)号：US20050050443A1
公开(公告)日：2005-03-03
申请号：US10921469
申请日：2004-08-19
申请人： Aamer Sachedina , Matthew Huras , Keriley Romanufa
发明人： Aamer Sachedina , Matthew Huras , Keriley Romanufa
IPC分类号： G06F17/00 , G06F17/30 , H04L12/16
CPC分类号： G06F17/30312
摘要： For an information retrieval system coupled to a buffer pool maintaining a plurality of pages of recently accessed information for subsequent re-access, a technique for starting the buffer pool is provided. The technique facilitates a quicker start to the buffer pool by deferring allocation of page storing portions, for example, until they are needed. The technique makes the buffer pool available for storing pages while deferring allocation of a page storing portion of the buffer pool and allocates the page storing portion of the buffer pool in response to a demand to store pages to the buffer pool. The technique may be used to re-start a buffer pool with pages stored to a memory coupled to the information retrieval system where the pages where stored upon a buffer pool shutdown. Further, buffer pool readers or prefetchers may be configured to read pages for storing to the buffer pool and allocate the page storing portions of the buffer pool in response to instructions to read particular pages.
摘要翻译：对于一个信息检索系统，耦合到缓冲池，保持多页最近访问的信息用于随后的重新访问，提供了启动缓冲池的技术。该技术通过延迟页面存储部分的分配来促进对缓冲池的更快启动，例如直到需要它们。该技术使得缓冲池可用于存储页面，同时延迟缓冲池的页面存储部分的分配，并且响应于将页面存储到缓冲池的需求而分配缓冲池的页面存储部分。该技术可用于重新启动缓冲池，其中页面存储到耦合到信息检索系统的存储器，其中存储在缓冲池关闭时的页面。此外，缓冲池读取器或预取器可以被配置为读取用于存储到缓冲池的页面，并响应于读取特定页面的指令来分配存储缓冲器池的部分的页面。

6. 发明授权

US07401244B2 Adaptive throttling system for computing systems 有权
标题翻译：用于计算系统的自适应节流系统
公开(公告)号：US07401244B2
公开(公告)日：2008-07-15
申请号：US11559876
申请日：2006-11-14
申请人： Joseph L. Hellerstein , Matthew Huras , Sam Lightstone , Sujay S. Parekh , Kevin R. Rose
发明人： Joseph L. Hellerstein , Matthew Huras , Sam Lightstone , Sujay S. Parekh , Kevin R. Rose
IPC分类号： G06F1/32 , G06F9/44
CPC分类号： G06F9/4843 , G06Q10/04
摘要： An adaptive throttling system for minimizing the impact of non-production work on production work in a computer system is provided. The adaptive throttling system throttles production work and non-production work to optimize production. The adaptive throttling system allows system administrators to specify a quantified limit on the performance impact of non-production or utility work on production work. The throttling rate of the utility is then automatically determined by a supervisory agent, so that the utilities' impact is kept within the specified limit. The adaptive throttling system adapts dynamically to changes in workloads so as to ensure that valuable system resources are well utilized and utility work is not delayed unnecessarily.
摘要翻译：提供了一种用于最小化非生产工作对计算机系统中的生产工作的影响的自适应节流系统。自适应节流系统节约生产工作和非生产工作，优化生产。自适应调节系统允许系统管理员指定非生产或公用事业工作对生产工作的绩效影响的量化限制。公用事业的节流率由监督人员自动确定，使公用事业的影响力保持在规定的限度内。自适应调节系统动态地适应工作负载的变化，以确保有价值的系统资源得到充分利用，并且公用事业工作不会不必要地延迟。

7. 发明申请

US20080098184A1 STORAGE POOLS WITH WRITE ATOMICITY 失效
标题翻译：存储池与写入原理
公开(公告)号：US20080098184A1
公开(公告)日：2008-04-24
申请号：US11955505
申请日：2007-12-13
申请人： Matthew Huras , Thomas Mathews , Lance Russell
发明人： Matthew Huras , Thomas Mathews , Lance Russell
IPC分类号： G06F13/00
CPC分类号： G06F17/30067
摘要： A method, apparatus, and computer program product for storage pools with write atomicity. An abstraction manager enforces write atomicity and disallows options which are inconsistent with write atomicity. The abstraction manager constructs through a physical device interface a logical continuous view of a storage pool in a manner consistent with write atomicity. Applications collect information specific to write atomicity from the abstraction manager through an application interface.
摘要翻译：一种具有写入原子性的存储池的方法，装置和计算机程序产品。抽象管理器强制写入原子性，并禁止与写入原子性不一致的选项。抽象管理器通过物理设备接口以与写入原子性一致的方式构建存储池的逻辑连续视图。应用程序通过应用程序接口从抽象管理器收集特定于写入原子性的信息。

8. 发明申请

US20070233989A1 SYSTEMS AND METHODS FOR SELF-TUNING MEMORY 有权
标题翻译：自调谐存储器的系统与方法
公开(公告)号：US20070233989A1
公开(公告)日：2007-10-04
申请号：US11278130
申请日：2006-03-30
申请人： Christian Garcia-Arellano , Sam Lightstone , Adam Storm , Wojciech Kuczynski , Matthew Huras , Xun Xue , Matthew Carroll
发明人： Christian Garcia-Arellano , Sam Lightstone , Adam Storm , Wojciech Kuczynski , Matthew Huras , Xun Xue , Matthew Carroll
IPC分类号： G06F12/00
CPC分类号： G06F12/0646 , G06F12/0223
摘要： There are disclosed systems, computer program products, and methods for self-tuning memory. In an embodiment, a method for self-tuning memory comprises setting a tuning interval and a target range for free memory for a memory pool. If memory consumption falls outside of the set target range for free memory during a tuning interval, a new target size for the memory pool is set based on the target range for free memory. Memory allocation for the memory pool is increased or decreased for the next tuning interval, such that the new target size for the memory pool is reached. A decrement rate may be used to provide a controlled decrease of the memory pool over a plurality of tuning intervals if necessary, until the new target size for the memory pool is reached.
摘要翻译：已经公开了系统，计算机程序产品和用于自调整存储器的方法。在一个实施例中，一种用于自调整存储器的方法包括设置用于存储器池的空闲存储器的调谐间隔和目标范围。如果内存消耗在调整间隔期间超出了可用内存的设置目标范围，则基于可用内存的目标范围设置内存池的新目标大小。内存池的内存分配在下一个调整间隔内增加或减少，从而达到内存池的新目标大小。如果需要，减量率可以用于在多个调谐间隔中提供存储池的受控减少，直到达到存储器池的新目标大小。

9. 发明申请

US20060155774A1 Handling access requests to a page while copying an updated page of data to storage 有权
标题翻译：在将更新的数据页复制到存储时，处理对页面的访问请求
公开(公告)号：US20060155774A1
公开(公告)日：2006-07-13
申请号：US11034518
申请日：2005-01-11
申请人： Aamer Sachedina , Matthew Huras , Keriley Romanufa
发明人： Aamer Sachedina , Matthew Huras , Keriley Romanufa
IPC分类号： G06F17/30
CPC分类号： G06F17/30362
摘要： Provided are a method, system, and program for handling access requests to a page while copying an updated page of data to storage. An update to a page in a memory is received and indication is made that the page has an exclusive lock. The update is applied to the page and an operation is initiated to copy the updated page to a physical log in a storage in response to applying the update to the page. Reads and writes are allowed to proceed against the page while the operation to copy the updated page to the physical log in the storage is occurring.
摘要翻译：提供了一种用于在将更新的数据页复制到存储时处理对页面的访问请求的方法，系统和程序。接收对存储器中的页面的更新，并且指示该页面具有排他锁。更新应用于页面，并且响应于将更新应用于页面，启动操作以将更新的页面复制到存储器中的物理日志。允许读取和写入对页面进行操作，而将更新页面复制到存储器中的物理日志的操作正在发生。

10. 发明授权

US08181050B2 Adaptive throttling for data processing systems 有权
标题翻译：数据处理系统的自适应调节
公开(公告)号：US08181050B2
公开(公告)日：2012-05-15
申请号：US12136486
申请日：2008-06-10
申请人： Joseph L. Hellerstein , Matthew Huras , Sujay S. Parekh , Kevin R. Rose , Sam Lightstone
发明人： Joseph L. Hellerstein , Matthew Huras , Sujay S. Parekh , Kevin R. Rose , Sam Lightstone
IPC分类号： G06F1/32 , G06F9/44
CPC分类号： G06F9/4843 , G06Q10/04
摘要： An adaptive throttling system for minimizing the impact of non-production work on production work in a computer system is provided. The adaptive throttling system throttles production work and non-production work to optimize production. The adaptive throttling system allows system administrators to specify a quantified limit on the performance impact of non-production or utility work on production work. The throttling rate of the utility is then automatically determined by a supervisory agent, so that the utilities' impact is kept within the specified limit. The adaptive throttling system adapts dynamically to changes in workloads so as to ensure that valuable system resources are well utilized and utility work is not delayed unnecessarily.
摘要翻译：提供了一种用于最小化非生产工作对计算机系统中的生产工作的影响的自适应节流系统。自适应节流系统节约生产工作和非生产工作，优化生产。自适应调节系统允许系统管理员指定非生产或公用事业工作对生产工作的绩效影响的量化限制。公用事业的节流率由监督人员自动确定，使公用事业的影响力保持在规定的限度内。自适应调节系统动态地适应工作负载的变化，以确保有价值的系统资源得到充分利用，并且公用事业工作不会不必要地延迟。

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