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1. 发明授权

US10592416B2 Write-back storage cache based on fast persistent memory 有权
公开(公告)号：US10592416B2
公开(公告)日：2020-03-17
申请号：US13288785
申请日：2011-11-03
申请人： Bharat Chandra Baddepudi , Juan R. Loaiza , Wei-Ming Hu , Kothanda Umamageswaran , Alex Tsukerman , Boris Erlikhman , J. William Lee , Jia Shi , Kiran B. Goyal , Selcuk Aya
发明人： Bharat Chandra Baddepudi , Juan R. Loaiza , Wei-Ming Hu , Kothanda Umamageswaran , Alex Tsukerman , Boris Erlikhman , J. William Lee , Jia Shi , Kiran B. Goyal , Selcuk Aya
IPC分类号： G06F12/08 , G06F12/0868
摘要： A storage device uses non-volatile memory devices for caching. The storage device operates in a mode referred to herein as write-back mode. In write-back mode, a storage device responds to a request to write data by persistently writing the data to a cache in a non-volatile memory device and acknowledges to the requestor that the data is written persistently in the storage device. The acknowledgement is sent without necessarily having written the data that was requested to be written to primary storage. Instead, the data is written to primary storage later.

2. 发明授权

US09063908B2 Rapid recovery from loss of storage device cache 有权
标题翻译：从存储设备缓存丢失中快速恢复
公开(公告)号：US09063908B2
公开(公告)日：2015-06-23
申请号：US13485557
申请日：2012-05-31
申请人： Juan R. Loaiza , Kothanda Umamageswaran , Boris Erlikhman , David Friedman , Jia Shi , Zuoyu Tao , Alex Tsukerman
发明人： Juan R. Loaiza , Kothanda Umamageswaran , Boris Erlikhman , David Friedman , Jia Shi , Zuoyu Tao , Alex Tsukerman
IPC分类号： G06F12/00 , G06F11/20 , G06F3/06 , G06F12/08
CPC分类号： G06F11/2082 , G06F3/0629 , G06F12/00 , G06F12/08 , G06F12/0802
摘要： Dirty data in a storage device is made current through rapid re-silvering, which uses a mirrored and up-to-date version of the dirty data from another storage device to recover the data. Because under rapid re-silvering cache metadata in volatile memory survives the failure of the cache, the cache metadata is used to determine which subset of data from the other storage device needs to be copied to the storage device being re-silvered. During re-silvering, cache metadata is used to determine which I/O requests from clients are requests for data that is not stale.
摘要翻译：存储设备中的脏数据通过快速重新刷新而成为最新版本，其使用来自另一存储设备的镜像和最新版本的脏数据来恢复数据。因为在快速重新刷新缓存中，缓存中的元数据可以在高速缓存的故障中幸存下来，所以使用高速缓存元数据来确定来自其他存储设备的哪个数据子集需要被复制到被重新映射的存储设备。在重新镀银期间，使用缓存元数据来确定来自客户端的哪些I / O请求是不过时的数据请求。

3. 发明申请

US20130262937A1 NODE DEATH DETECTION BY QUERYING 有权
标题翻译：通过查询进行死亡检测
公开(公告)号：US20130262937A1
公开(公告)日：2013-10-03
申请号：US13431196
申请日：2012-03-27
申请人： Vijay SRIDHARAN , Huy Nguyen , Jia Shi , Alex Tsukerman , Kothanda Umamageswaran
发明人： Vijay SRIDHARAN , Huy Nguyen , Jia Shi , Alex Tsukerman , Kothanda Umamageswaran
IPC分类号： G06F11/00 , H04L12/26
CPC分类号： G06F11/0709 , G06F11/076 , H04L43/0817 , H04L43/10 , H04L43/16
摘要： Systems, methods, and other embodiments associated with detecting a node death in a clustered distributed system are described. In one embodiment, a method includes transmitting a ping message to a peer node in the network. If a reply to the ping message is not received from the peer node, a query is sent to table of port identifiers that lists ports in the cluster. In one embodiment, the query includes a port identifier associated with the peer node. The peer node is declared as inactive/dead when the query fails to locate a match in the table for the port identifier. When the query locates a match in the table for the port identifier, another ping message is periodically transmitted to the peer node.
摘要翻译：描述了与群集分布式系统中的节点死亡检测相关联的系统，方法和其他实施例。在一个实施例中，一种方法包括将ping消息发送到网络中的对等节点。如果没有从对等节点接收到ping消息的回复，则会将查询发送到列出集群端口的端口标识符表。在一个实施例中，查询包括与对等节点相关联的端口标识符。当查询无法在端口标识符的表中找到匹配时，对等节点被声明为非活动/已停止。当查询查找端口标识符的表中的匹配时，会将另一个ping消息周期性地发送到对等节点。

4. 发明授权

US09135097B2 Node death detection by querying 有权
标题翻译：通过查询节点死亡检测
公开(公告)号：US09135097B2
公开(公告)日：2015-09-15
申请号：US13431196
申请日：2012-03-27
申请人： Vijay Sridharan , Huy Nguyen , Jia Shi , Alex Tsukerman , Kothanda Umamageswaran
发明人： Vijay Sridharan , Huy Nguyen , Jia Shi , Alex Tsukerman , Kothanda Umamageswaran
IPC分类号： G06F11/00 , G06F11/07 , H04L12/26
CPC分类号： G06F11/0709 , G06F11/076 , H04L43/0817 , H04L43/10 , H04L43/16
摘要： Systems, methods, and other embodiments associated with detecting a node death in a clustered distributed system are described. In one embodiment, a method includes transmitting a ping message to a peer node in the network. If a reply to the ping message is not received from the peer node, a query is sent to table of port identifiers that lists ports in the cluster. In one embodiment, the query includes a port identifier associated with the peer node. The peer node is declared as inactive/dead when the query fails to locate a match in the table for the port identifier. When the query locates a match in the table for the port identifier, another ping message is periodically transmitted to the peer node.
摘要翻译：描述了与群集分布式系统中的节点死亡检测相关联的系统，方法和其他实施例。在一个实施例中，一种方法包括将ping消息发送到网络中的对等节点。如果没有从对等节点接收到ping消息的回复，则会将查询发送到列出集群端口的端口标识符表。在一个实施例中，查询包括与对等节点相关联的端口标识符。当查询无法在端口标识符的表中找到匹配时，对等节点被声明为非活动/已停止。当查询查找端口标识符的表中的匹配时，会将另一个ping消息周期性地发送到对等节点。

5. 发明授权

US06804671B1 Pluggable tablespaces for database systems 有权
标题翻译：数据库系统的可插拔表空间
公开(公告)号：US06804671B1
公开(公告)日：2004-10-12
申请号：US10353381
申请日：2003-01-28
申请人： Juan R. Loaiza , Hasan Rizvi , J. William Lee , William H. Bridge, Jr. , Jonathan D. Klein , Alex Tsukerman , Gianfranco Putzolu
发明人： Juan R. Loaiza , Hasan Rizvi , J. William Lee , William H. Bridge, Jr. , Jonathan D. Klein , Alex Tsukerman , Gianfranco Putzolu
IPC分类号： G06F1730
CPC分类号： G06F17/30952 , Y10S707/959 , Y10S707/99937 , Y10S707/99942 , Y10S707/99955
摘要： A pluggable tablespace is enabled by logically partitioning a database into a set of tablespaces and storing all of the tablespaces disk pointers in tablespace-relative format. A pluggable set of tablespaces is unplugged by generating the associated metadata, and making a binary copy of the tablespaces. The pluggable set of tablespaces is plugged into a target database by making the pluggable set accessible to the target database and incorporating the associated metadata, without patching any of the disk pointers.
摘要翻译：通过将数据库逻辑分区为一组表空间并以表空间相对格式存储所有表空间磁盘指针来启用可插入表空间。通过生成相关联的元数据并创建表空间的二进制副本，可以拔掉一组可插拔的表空间。可插入的表空间集合通过使可插入集合可访问目标数据库并结合相关联的元数据而插入到目标数据库中，而无需修补任何磁盘指针。

6. 发明授权

US06272503B1 Tablespace-relative database pointers 失效
标题翻译：表空间相对数据库指针
公开(公告)号：US06272503B1
公开(公告)日：2001-08-07
申请号：US08865693
申请日：1997-05-30
申请人： William H. Bridge, Jr. , Jonathan D. Klein , J. William Lee , Juan R. Loaiza , Alex Tsukerman , GianFranco Putzolu
发明人： William H. Bridge, Jr. , Jonathan D. Klein , J. William Lee , Juan R. Loaiza , Alex Tsukerman , GianFranco Putzolu
IPC分类号： G06F1730
CPC分类号： G06F17/30952 , Y10S707/959 , Y10S707/99937 , Y10S707/99942 , Y10S707/99955
摘要： A database containing datafiles is partitioned into a set of tablespaces. Every disk pointer pointing to a data item in a datafile refers to a tablespace-relative file number for the datafile. Data pointed to by a tablespace-relative disk pointer is retrieved by first checking the cache, and upon a cache miss, the tablespace-relative file number is translated into an absolute file number according to a latch-free look up technique.
摘要翻译：包含数据文件的数据库被分成一组表空间。指向数据文件中的数据项的每个磁盘指针是指数据文件的表空间相对文件编号。通过首先检查缓存来检索由表空间相对磁盘指针指向的数据，并且在高速缓存未命中时，根据无闩锁查询技术将表空间相对文件号转换为绝对文件号。

7. 发明授权

US06549901B1 Using transportable tablespaces for hosting data of multiple users 有权
标题翻译：使用可移动的表空间来托管多个用户的数据
公开(公告)号：US06549901B1
公开(公告)日：2003-04-15
申请号：US09675195
申请日：2000-09-29
申请人： Juan R. Loaiza , Hasan Rizvi , J. William Lee , William H. Bridge, Jr. , Jonathan D. Klein , Alex Tsukerman , Gianfranco Putzolu
发明人： Juan R. Loaiza , Hasan Rizvi , J. William Lee , William H. Bridge, Jr. , Jonathan D. Klein , Alex Tsukerman , Gianfranco Putzolu
IPC分类号： G06F1730
CPC分类号： G06F17/30952 , Y10S707/99937
摘要： Provided are mechanisms that may be used to support efficient exportation of user data stored in a database system. According to an aspect of the present invention, a database system is configured to store data for users in separate repositories referred to as tablespaces. To store data in this manner, a database system may be configured in variety of ways.
摘要翻译：提供了可用于支持存储在数据库系统中的用户数据的有效输出的机制。根据本发明的一个方面，数据库系统被配置为将数据存储在被称为表空间的分开的存储库中。为了以这种方式存储数据，可以以各种方式配置数据库系统。

8. 发明授权

US5873102A Pluggable tablespaces on a transportable medium 失效
标题翻译：可移动介质上的可插拔表空间
公开(公告)号：US5873102A
公开(公告)日：1999-02-16
申请号：US846511
申请日：1997-04-29
申请人： William H. Bridge, Jr. , Jonathan D. Klein , J. William Lee , Juan R. Loaiza , Alex Tsukerman , Gianfranco Putzolu
发明人： William H. Bridge, Jr. , Jonathan D. Klein , J. William Lee , Juan R. Loaiza , Alex Tsukerman , Gianfranco Putzolu
IPC分类号： G06F17/30
CPC分类号： G06F17/30557 , G06F17/30339 , Y10S707/99942 , Y10S707/99953 , Y10S707/99955
摘要： A pluggable tablespace is enabled by logically partitioning a database into a set of tablespaces. A pluggable set of tablespaces is stored on a transportable medium in which all the disk pointers of the pluggable set is stored in tablespace-relative format. In addition, the pluggable set includes exported associated metadata about objects contained in the pluggable set. The pluggable set is plugged into a target database by making the pluggable set accessible to the target database and importing the associated metadata, without patching any of the disk pointers.
摘要翻译：通过将数据库逻辑分区成一组表空间来启用可插入表空间。可插入的一组表空间存储在可移植介质上，其中可插入集合的所有磁盘指针以表空间相对格式存储。此外，可插拔集合包括关于可插入集合中包含的对象的导出的关联元数据。通过使可插拔设置可访问目标数据库并导入关联的元数据，插件可插入目标数据库，而不修补任何磁盘指针。

9. 发明授权

US5890167A Pluggable tablespaces for database systems 失效
标题翻译：数据库系统的可插拔表空间
公开(公告)号：US5890167A
公开(公告)日：1999-03-30
申请号：US852968
申请日：1997-05-08
申请人： William H. Bridge, Jr. , Jonathan D. Klein , J. William Lee , Juan R. Loaiza , Alex Tsukerman , GianFranco Putzolu
发明人： William H. Bridge, Jr. , Jonathan D. Klein , J. William Lee , Juan R. Loaiza , Alex Tsukerman , GianFranco Putzolu
IPC分类号： G06F17/30
CPC分类号： G06F17/30339 , Y10S707/99942 , Y10S707/99953 , Y10S707/99955
摘要： A pluggable tablespace is enabled by logically partitioning a database into a set of tablespaces and storing all of the tablespaces disk pointers in tablespace-relative format. A pluggable set of tablespaces is unplugged by exporting the associated metadata, and making a binary copy of the tablespaces. The pluggable set of tablespaces is plugged into a target database by making the pluggable set accessible to the target database and importing the associated metadata, without patching any of the disk pointers.
摘要翻译：通过将数据库逻辑分区为一组表空间并以表空间相对格式存储所有表空间磁盘指针来启用可插入表空间。通过导出相关联的元数据并创建表空间的二进制副本，可以插拔一组表空间。可插拔的表空间集合通过使可插入集合可访问目标数据库并导入相关联的元数据而插入到目标数据库中，而无需修补任何磁盘指针。

10. 发明授权

US08458511B2 Fault isolation using code paths 有权
标题翻译：使用代码路径进行故障隔离
公开(公告)号：US08458511B2
公开(公告)日：2013-06-04
申请号：US12885323
申请日：2010-09-17
申请人： Tsz Him (Adrian) Ng , Alex Tsukerman , Kothanda Umamageswaran , Roger Hansen , Umesh Panchaksharaiah
发明人： Tsz Him (Adrian) Ng , Alex Tsukerman , Kothanda Umamageswaran , Roger Hansen , Umesh Panchaksharaiah
IPC分类号： G06F11/00
CPC分类号： G06F11/3688
摘要： Techniques are provided for isolating faults in a software program by providing at least two code paths that are capable of performing the same operation. When a fault occurs while the one of the code paths is being used to perform an operation, data that indicates the circumstances under which the fault occurred is stored. For example, a fault-recording mechanism may store data that indicates the entities that were involved in the failed operation. Because they were involved in an operation that experienced a fault, one or more of those entities may be “quarantined”. When subsequent requests arrive to perform the operation, a check may be performed to determine whether the requested operation involves any of the quarantined entities. If the requested operation involves a quarantined entity, a different code path is used to perform the operation, rather than the code path from which the entity is quarantined.
摘要翻译：提供了通过提供能够执行相同操作的至少两个代码路径来分离软件程序中的故障的技术。当代码路径中的一个正在用于执行操作时发生故障时，存储指示发生故障的情况的数据。例如，故障记录机制可以存储指示涉及故障操作的实体的数据。因为他们参与了一个经历过错的行动，所以这些实体中的一个或多个可能被“隔离”。当后续请求到达以执行操作时，可以执行检查以确定所请求的操作是否涉及任何被隔离的实体。如果请求的操作涉及隔离实体，则使用不同的代码路径来执行操作，而不是实体被隔离的代码路径。

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