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1. 发明申请

US20110145635A1 Failure Detection and Fencing in a Computing System 失效
标题翻译：计算系统中的故障检测与击剑
公开(公告)号：US20110145635A1
公开(公告)日：2011-06-16
申请号：US12635338
申请日：2009-12-10
申请人： Andrew David Buckler , Christian Marcelo Garcia-Arellano , David Alan Hepkin , Matthew Albert Huras , Aamer Sachedina
发明人： Andrew David Buckler , Christian Marcelo Garcia-Arellano , David Alan Hepkin , Matthew Albert Huras , Aamer Sachedina
IPC分类号： G06F11/07
CPC分类号： G06F11/0793 , G06F11/0715
摘要： A method, computer program product, and system for detecting and fencing off a failed entity instance so that failover time in the computing system is reduced. Upon detection of a failed entity, for example a failed process, a signal handler invokes an operating system interface to fence off the failed instance from modifying its persistent state, so that the entity may be re-instantiated prior to termination of the failed instance. This approach reduces failover time and eliminates split-brain problems without compromising access to the failed instance to obtain diagnostic information, core dumps, and the like.
摘要翻译：一种用于检测和防范故障实体实例的方法，计算机程序产品和系统，从而减少计算系统中的故障转移时间。在检测到失败的实体（例如失败的过程）时，信号处理器调用操作系统接口来阻止失败的实例修改其持久状态，使得可以在失败的实例终止之前重新实例化该实体。这种方法可以减少故障转移时间并消除分裂问题，而不会影响对故障实例的访问，以获取诊断信息，核心转储等。

2. 发明授权

US07099889B2 System and method for decoupling object identification for the purpose of object switching in database systems 失效
标题翻译：用于解除对象标识的系统和方法，用于数据库系统中的对象切换
公开(公告)号：US07099889B2
公开(公告)日：2006-08-29
申请号：US10425754
申请日：2003-04-29
申请人： Robert T. Berks , Miroslaw Adam Flasza , Matthew Albert Huras , Leo Tat Man Lau , Keriley K. Romanufa , Aamer Sachedina , Michael Jeffrey Winer
发明人： Robert T. Berks , Miroslaw Adam Flasza , Matthew Albert Huras , Leo Tat Man Lau , Keriley K. Romanufa , Aamer Sachedina , Michael Jeffrey Winer
IPC分类号： G06F17/00 , G06F15/16 , G06F9/44
CPC分类号： G06F17/30286 , Y10S707/955 , Y10S707/99938 , Y10S707/99942 , Y10S707/99944 , Y10S707/99953
摘要： The use of a centralized version table allows for efficient object switching. Rather than synchronizing all database agents to recognize a newly created file as containing the most recent version of a given object, database agents requiring access to the given object need only consult the centralized version table to learn file identity information. That is, the database agents consult the centralized version table to determine which of the files associated with a given object contain the most recent version of the given object. Mechanisms associated with the use of the centralized version table also provide for efficient recovery from a failure that has occurred during an object switching transaction.
摘要翻译：使用集中版本表允许有效的对象切换。而不是同步所有数据库代理以将新创建的文件识别为包含给定对象的最新版本，需要访问给定对象的数据库代理只需要查询集中式版本表来学习文件身份信息。也就是说，数据库代理查询集中版本表，以确定与给定对象关联的哪些文件包含给定对象的最新版本。与使用集中版本表相关联的机制还提供了在对象切换事务期间发生的故障的有效恢复。

3. 发明授权

US06684225B1 Dropped database table recovery 失效
标题翻译：删除数据库表恢复
公开(公告)号：US06684225B1
公开(公告)日：2004-01-27
申请号：US09626673
申请日：2000-07-27
申请人： Matthew Albert Huras , Dale M. McInnis , Effi Ofer , Michael J. Winer , Roger Luo Q. Zheng
发明人： Matthew Albert Huras , Dale M. McInnis , Effi Ofer , Michael J. Winer , Roger Luo Q. Zheng
IPC分类号： G06F1200
CPC分类号： G06F17/30595 , Y10S707/99931 , Y10S707/99943 , Y10S707/99953
摘要： A database management system having a dropped table recovery flag. If the dropped table recovery flag is on at the time that a table is dropped, an entry will be made in a dropped table history file. The dropped table history file contains a timestamp of the time of table drop, a unique dropped table identifier, and table definition information. The system includes a command to permit the table-space of a dropped table to be restored and rolled forward to the point of the dropped table drop. The restored and rolled forward dropped table data is written to a flat file. The flat file data is loaded into a recreated table in the current table space to recover the dropped table.
摘要翻译：具有丢弃表恢复标志的数据库管理系统。如果删除表恢复标志在表被删除的时候打开，则会在丢弃的表历史文件中创建一个条目。丢弃的表历史文件包含表删除时间的时间戳，唯一的删除表标识符和表定义信息。系统包括一个命令，用于允许恢复已删除的表的表空间并向前滚动到丢弃的表的下降点。恢复并滚动的向前丢弃的表数据将写入一个平面文件。平面文件数据被加载到当前表空间中的重新创建的表中以恢复丢弃的表。

4. 发明授权

US08250111B2 Automatic detection and correction of hot pages in a database system 失效
标题翻译：在数据库系统中自动检测和更正热页
公开(公告)号：US08250111B2
公开(公告)日：2012-08-21
申请号：US12394786
申请日：2009-02-27
申请人： Matthew Albert Huras , Keriley Kay Romanufa , Aamer Sachedina , Xun Xue
发明人： Matthew Albert Huras , Keriley Kay Romanufa , Aamer Sachedina , Xun Xue
IPC分类号： G06F17/30
CPC分类号： G06F17/30306
摘要： According to one embodiment of the present invention, a method of detecting and correcting hot pages in a database system includes monitoring transactions involving pages in a database and determining if one of the transactions had to wait for access to one of the pages; incrementing a page contention counter each time one of the transactions had to wait for access to one of the pages. The method then determines if the page contention counter exceeds a predetermined threshold and monitors transactions on one of the pages for which the page contention count was exceeded. The method then determines if a row was accessed in the page for which the page contention count was exceeded and increments a reference count for the accessed row. The accessed rows are flagged when the reference count exceeds a second predetermined threshold. The flagged rows are moved to another page in the database.
摘要翻译：根据本发明的一个实施例，一种在数据库系统中检测和校正热页面的方法包括监视涉及数据库中的页面的事务，并且确定其中一个事务是否必须等待访问其中一个页面; 每次其中一个事务必须等待访问其中一个页面时，增加页面争用计数器。该方法然后确定页面争用计数器是否超过预定阈值，并且监视超出页面争用次数的页面之一上的事务。该方法然后确定在超出页面争用次数的页面中是否访问了一行，并增加访问行的引用计数。当参考计数超过第二预定阈值时，所访问的行被标记。标记的行被移动到数据库中的另一个页面。

5. 发明申请

US20120136977A1 STORAGE APPLIANCE, APPLICATION SERVER AND METHOD THEREOF 有权
标题翻译：存储设备，应用服务器及其方法
公开(公告)号：US20120136977A1
公开(公告)日：2012-05-31
申请号：US12955943
申请日：2010-11-30
申请人： Michael E. Factor , Matthew Albert Huras , Aamer Sachedina , Paula Kim Ta-Shma , Avishay Traeger
发明人： Michael E. Factor , Matthew Albert Huras , Aamer Sachedina , Paula Kim Ta-Shma , Avishay Traeger
IPC分类号： G06F15/173
CPC分类号： H04L67/1097
摘要： A storage appliance system is disclosed which may include at least one application server for locally executing an application, and one or more storage servers in communication with the application server for I/O transmission therebetween. Also disclosed are an application server, a method, and a computer program product.
摘要翻译：公开了一种存储设备系统，其可以包括用于本地执行应用的至少一个应用服务器，以及与应用服务器通信的一个或多个存储服务器，用于在其间进行I / O传输。还公开了应用服务器，方法和计算机程序产品。

6. 发明授权

US07694102B2 Systems and methods for self-tuning memory 有权
标题翻译：自调整内存的系统和方法
公开(公告)号：US07694102B2
公开(公告)日：2010-04-06
申请号：US11278130
申请日：2006-03-30
申请人： Christian Marcelo Garcia-Arellano , Sam Sampson Lightstone , Adam J. Storm , Wojciech Kuczynski , Matthew Albert Huras , Xun Xue , Matthew James Carroll
发明人： Christian Marcelo Garcia-Arellano , Sam Sampson Lightstone , Adam J. Storm , Wojciech Kuczynski , Matthew Albert Huras , Xun Xue , Matthew James Carroll
IPC分类号： G06F12/02 , G06F12/16 , G06F13/24
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。

7. 发明申请

US20080235245A1 COMMITMENT OF TRANSACTIONS IN A DISTRIBUTED SYSTEM 审中-公开
标题翻译：分布式系统中的交易承诺
公开(公告)号：US20080235245A1
公开(公告)日：2008-09-25
申请号：US12131006
申请日：2008-05-30
申请人： Matthew Albert HURAS , Timothy Jon Vincent
发明人： Matthew Albert HURAS , Timothy Jon Vincent
IPC分类号： G06F17/30
CPC分类号： G06F9/466
摘要： A 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：提供了一种用于在分布式系统中进行交易的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。

8. 发明申请

US20080154842A1 ENHANCED RELATIONAL DATABASE MANAGEMENT SYSTEM AND METHOD 审中-公开
标题翻译：增强的关系数据库管理系统和方法
公开(公告)号：US20080154842A1
公开(公告)日：2008-06-26
申请号：US11613773
申请日：2006-12-20
申请人： Matthew Albert Huras , Keriley Kay Romanufa , Aamer Sachedina
发明人： Matthew Albert Huras , Keriley Kay Romanufa , Aamer Sachedina
IPC分类号： G06F17/30
CPC分类号： G06F16/2453 , G06F16/21 , G06F16/284
摘要： A method to enhance relational database management system resiliency and query operations by minimizing CPU overhead and database page access latency and by facilitating database restoration and query efficiency. The method includes creating a clean database page in a buffer pool of a relational database management system, granting exclusive access to the clean database page within the buffer pool to an application that transitions the clean database page to a dirty database page by altering data store thereon, immediately downgrading exclusive access to the dirty database page to shared access in response to receiving an exclusive access termination request from the application, writing the dirty database page to a physical log, and releasing share access to the dirty database page.
摘要翻译：通过最小化CPU开销和数据库页面访问延迟以及促进数据库恢复和查询效率来增强关系数据库管理系统弹性和查询操作的方法。该方法包括在关系数据库管理系统的缓冲池中创建干净的数据库页面，授予对缓冲池内的干净数据库页面的独占访问权，通过改变其上的数据存储将清理数据库页面转换到脏数据库页面的应用程序响应于从应用程序接收到独占访问终止请求，将脏数据库页面写入物理日志，并释放对脏数据库页面的共享访问，立即将对脏数据库页面的独占访问权降级到共享访问。

9. 发明授权

US07188124B2 Method, system, computer product for recovering dropped database table specifying one or more table spaces, recovering the table space being restored using the dropped table history data structure 失效
标题翻译：用于恢复指定一个或多个表空间的丢弃数据库表的方法，系统，计算机产品，使用丢弃的表历史数据结构恢复正在还原的表空间
公开(公告)号：US07188124B2
公开(公告)日：2007-03-06
申请号：US10718009
申请日：2003-11-19
申请人： Matthew Albert Huras , Dale M. McInnis , Effi Ofer , Michael J. Winer , Roger Luo Q. Zheng
发明人： Matthew Albert Huras , Dale M. McInnis , Effi Ofer , Michael J. Winer , Roger Luo Q. Zheng
IPC分类号： G06F17/30 , G06F7/00 , G06F11/00
CPC分类号： G06F17/30595 , Y10S707/99931 , Y10S707/99943 , Y10S707/99953
摘要： A technique for recovering a dropped table is provided. One or more table spaces are specified prior to one or more tables being dropped from the specified one or more table spaces. When a table is to be dropped from the one or more specified table spaces, a table identifier, a time stamp, and table definition attributes are stored for the dropped table in a data structure and the table is dropped. Upon receiving a request to restore a table space from the one or more specified table spaces, each of the one or more tables in the table space being restored is recovered using the data structure.
摘要翻译：提供了一种用于恢复丢弃表的技术。在从指定的一个或多个表空间中删除一个或多个表之前指定一个或多个表空间。当要从一个或多个指定的表空间中删除表时，会在数据结构中存储表标识符，时间戳和表定义属性，并删除表。在从一个或多个指定的表空间接收到恢复表空间的请求时，使用数据结构恢复正在还原的表空间中的一个或多个表中的每一个。

10. 发明授权

US09571576B2 Storage appliance, application server and method thereof 有权
标题翻译：存储设备，应用服务器及其方法
公开(公告)号：US09571576B2
公开(公告)日：2017-02-14
申请号：US12955943
申请日：2010-11-30
申请人： Michael E. Factor , Matthew Albert Huras , Aamer Sachedina , Paula Kim Ta-Shma , Avishay Traeger
发明人： Michael E. Factor , Matthew Albert Huras , Aamer Sachedina , Paula Kim Ta-Shma , Avishay Traeger
IPC分类号： G06F15/173 , H04L29/08
CPC分类号： H04L67/1097
摘要： A storage appliance system is disclosed which may include at least one application server for locally executing an application, and one or more storage servers in communication with the application server for I/O transmission therebetween. Also disclosed are an application server, a method, and a computer program product.
摘要翻译：公开了一种存储设备系统，其可以包括用于本地执行应用的至少一个应用服务器，以及与应用服务器通信的一个或多个存储服务器，用于在其间进行I / O传输。还公开了应用服务器，方法和计算机程序产品。

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