公开(公告)号：US07809675B2

公开(公告)日：2010-10-05

申请号：US11172472

申请日：2005-06-29

申请人： Namit Jain ,  Syam Pannala ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar ,  Vikram Kapoor

发明人： Namit Jain ,  Syam Pannala ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar ,  Vikram Kapoor

IPC分类号： G06F17/30 ,  G06F12/00

CPC分类号： G06F17/30171 ,  G06F17/30233 ,  Y10S707/99931 ,  Y10S707/99942 ,  Y10S707/99943

摘要： A method and apparatus for sharing state information among a plurality of servers is provided. A first server receives a request to perform a file operation, such as a NFS file system operation. Thereafter, the first server updates state information to reflect a change in state associated with processing the request. The first server then causes state update information, which identifies the change in state that was made at the first server, to be propagated to a second server. The second server updates state information, stored at the second server, to reflect the change in state associated with processing the request at the first server. Advantageously, a client may send a series of stateful file operations to either the first server or the second server, even if processing any one of the stateful file operation requests requires knowledge of the state of processing prior requests in the series of requests.

摘要翻译： 提供了一种用于在多个服务器之间共享状态信息的方法和装置。 第一服务器接收执行诸如NFS文件系统操作之类的文件操作的请求。 此后，第一服务器更新状态信息以反映与处理请求相关联的状态变化。 然后，第一服务器导致状态更新信息，其标识在第一服务器处进行的状态的改变，以被传播到第二服务器。 第二服务器更新存储在第二服务器处的状态信息，以反映与在第一服务器处理请求相关联的状态变化。 有利地，客户机可以向第一服务器或第二服务器发送一系列有状态的文件操作，即使处理有状态文件操作请求中的任何一个需要知道在一系列请求中处理先前请求的状态。

公开(公告)号：US07716260B2

公开(公告)日：2010-05-11

申请号：US11013889

申请日：2004-12-16

申请人： Syam Pannala ,  Namit Jain ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar

发明人： Syam Pannala ,  Namit Jain ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar

IPC分类号： G06F17/30

CPC分类号： G06F9/526 ,  G06F9/466 ,  G06F17/30353 ,  G06F17/30377 ,  G06F2201/80 ,  G06F2209/523

摘要： A method and apparatus for reverting a resource to a prior state in time is provided. Changes are committed to a resource at a particular point in time. After the particular point in time, a request, which may be a file system operation request, to revert the resource to a state prior to the particular point in time is received at a database server. In response to the request, the resource is reverted to the state prior to the particular point in time. The current state of the resource ceases to reflect the plurality of changes. Advantageously, if a requestor creates an incorrect version of a resource, the changes made to a schema-based resource are not compatible with the schema, or the changes of multiple requesters are not compatible with each other, the resource may be reverted to the earlier point in time.

摘要翻译： 提供了一种用于将资源恢复到先前状态的方法和装置。 更改在特定时间点致力于资源。 在特定时间点之后，在数据库服务器处接收到可能是文件系统操作请求的将资源恢复到特定时间点之前的状态的请求。 响应于该请求，资源被恢复到特定时间点之前的状态。 资源的当前状态不再反映多种变化。 有利的是，如果请求者创建资源的不正确版本，对基于模式的资源所做的更改与模式不兼容，或者多个请求者的更改彼此不兼容，则该资源可能还原到较早 时间点。

公开(公告)号：US20060136376A1

公开(公告)日：2006-06-22

申请号：US11014354

申请日：2004-12-16

申请人： Namit Jain ,  Nipun Agarwal ,  Eric Sedlar ,  Sam Idicula ,  Syam Pannala

发明人： Namit Jain ,  Nipun Agarwal ,  Eric Sedlar ,  Sam Idicula ,  Syam Pannala

IPC分类号： G06F17/30 ,  G06F7/00

CPC分类号： G06F17/30171 ,  Y10S707/99938 ,  Y10S707/99939

摘要： A method and apparatus for processing a file system operation at a database server is provided. A request to perform a file system operation on a resource stored in a database is received at a database system. The request may be implemented using the NFS protocol. The request may include state identification data that identifies state information associated with the request. State information associated with the request is retrieved within the database system based on the state identification data. State information is information that describes the operational state of the requestor for a particular file. The request is then processed based, at least in part, on the state identification. File system operations may be processed a database management system to access any data, such as a file, relational data, and object-relational data.

公开(公告)号：US20060136516A1

公开(公告)日：2006-06-22

申请号：US11013890

申请日：2004-12-16

申请人： Namit Jain ,  Sam Idicula ,  Syam Pannala ,  Nipun Agarwal ,  Ravi Murthy ,  Eric Sedlar

发明人： Namit Jain ,  Sam Idicula ,  Syam Pannala ,  Nipun Agarwal ,  Ravi Murthy ,  Eric Sedlar

IPC分类号： G06F17/30

CPC分类号： G06F17/30171 ,  Y10S707/99938 ,  Y10S707/99939

摘要： A method and apparatus for providing file system operation locks at a database server is provided. A database server may employ database locks and file system operation locks in servicing requests from consistent requestors and inconsistent requesters. A database lock is a lock that is obtained in response to performing a database operation, and the database lock is released when the database operation has successfully completed. A file system operation lock is a lock that is obtained in response to performing an OPEN file system operation, and the file system operation lock is released when a CLOSE file system operation is performed. The database server may use a temporary copy of the resource, which reflects all the current changes that have been made to the resource by database operations, in servicing consistent requestors, and may use the original version of the resource in servicing inconsistent requesters.

公开(公告)号：US20060136509A1

公开(公告)日：2006-06-22

申请号：US11013889

申请日：2004-12-16

申请人： Syam Pannala ,  Namit Jain ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar

发明人： Syam Pannala ,  Namit Jain ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar

IPC分类号： G06F17/30

CPC分类号： G06F9/526 ,  G06F9/466 ,  G06F17/30353 ,  G06F17/30377 ,  G06F2201/80 ,  G06F2209/523

摘要： A method and apparatus for reverting a resource to a prior state in time is provided. Changes are committed to a resource at a particular point in time. After the particular point in time, a request, which may be a file system operation request, to revert the resource to a state prior to the particular point in time is received at a database server. In response to the request, the resource is reverted to the state prior to the particular point in time. The current state of the resource ceases to reflect the plurality of changes. Advantageously, if a requestor creates an incorrect version of a resource, the changes made to a schema-based resource are not compatible with the schema, or the changes of multiple requesters are not compatible with each other, the resource may be reverted to the earlier point in time.

摘要翻译： 提供了一种用于将资源恢复到先前状态的方法和装置。 更改在特定时间点致力于资源。 在特定时间点之后，在数据库服务器处接收到可能是文件系统操作请求的将资源恢复到特定时间点之前的状态的请求。 响应于该请求，资源被恢复到特定时间点之前的状态。 资源的当前状态不再反映多种变化。 有利的是，如果请求者创建资源的不正确版本，对基于模式的资源所做的更改与模式不兼容，或者多个请求者的更改彼此不兼容，则该资源可能还原为较早 时间点。

公开(公告)号：US20060136508A1

公开(公告)日：2006-06-22

申请号：US11013519

申请日：2004-12-16

申请人： Sam Idicula ,  Namit Jain ,  Syam Pannala ,  Vasudha Krishnaswamy ,  Eric Sedlar ,  Nipun Agarwal ,  Bipul Sinha ,  Ravi Murthy

发明人： Sam Idicula ,  Namit Jain ,  Syam Pannala ,  Vasudha Krishnaswamy ,  Eric Sedlar ,  Nipun Agarwal ,  Bipul Sinha ,  Ravi Murthy

IPC分类号： G06F17/30

CPC分类号： G06F16/1774

摘要： A method and apparatus for performing file system operation locks at a database server is provided. A request to perform a file operation on a portion of a file managed by a database server is received at the database server. In response to receiving the request, the database server grants a lock that covers only a portion of the file that is involved in the file operation. For example, the database server may grant a lock that covers a range of bytes on the file, where the range of bytes is less than the entire file. Thereafter, the database server performs the file operation on the file. The file operation may be a NFS operation.

摘要翻译： 提供了一种用于在数据库服务器执行文件系统操作锁定的方法和装置。 在数据库服务器处接收对由数据库服务器管理的文件的一部分执行文件操作的请求。 响应于接收到该请求，数据库服务器授予仅覆盖文件操作中涉及的文件的一部分的锁。 例如，数据库服务器可以授予覆盖文件范围的字节的锁，其中字节的范围小于整个文件。 此后，数据库服务器对文件执行文件操作。 文件操作可能是NFS操作。

公开(公告)号：US07627574B2

公开(公告)日：2009-12-01

申请号：US11014354

申请日：2004-12-16

申请人： Namit Jain ,  Nipun Agarwal ,  Eric Sedlar ,  Sam Idicula ,  Syam Pannala

发明人： Namit Jain ,  Nipun Agarwal ,  Eric Sedlar ,  Sam Idicula ,  Syam Pannala

IPC分类号： G06F17/30

CPC分类号： G06F17/30171 ,  Y10S707/99938 ,  Y10S707/99939

摘要： A method and apparatus for processing a file system operation at a database server is provided. A request to perform a file system operation on a resource stored in a database is received at a database system. The request may be implemented using the NFS protocol. The request may include state identification data that identifies state information associated with the request. State information associated with the request is retrieved within the database system based on the state identification data. State information is information that describes the operational state of the requestor for a particular file. The request is then processed based, at least in part, on the state identification. File system operations may be processed a database management system to access any data, such as a file, relational data, and object-relational data.

摘要翻译： 提供了一种在数据库服务器处理文件系统操作的方法和装置。 在数据库系统中接收对存储在数据库中的资源执行文件系统操作的请求。 请求可以使用NFS协议实现。 该请求可以包括标识与请求相关联的状态信息的状态标识数据。 基于状态识别数据在数据库系统内检索与请求相关联的状态信息。 状态信息是描述特定文件的请求者的操作状态的信息。 然后，至少部分地基于状态标识处理该请求。 文件系统操作可以由数据库管理系统处理以访问任何数据，例如文件，关系数据和对象关系数据。

公开(公告)号：US07548918B2

公开(公告)日：2009-06-16

申请号：US11013890

申请日：2004-12-16

申请人： Namit Jain ,  Sam Idicula ,  Syam Pannala ,  Nipun Agarwal ,  Ravi Murthy ,  Eric Sedlar

发明人： Namit Jain ,  Sam Idicula ,  Syam Pannala ,  Nipun Agarwal ,  Ravi Murthy ,  Eric Sedlar

IPC分类号： G06F17/30

CPC分类号： G06F17/30171 ,  Y10S707/99938 ,  Y10S707/99939

摘要： A method and apparatus for providing file system operation locks at a database server is provided. A database server may employ database locks and file system operation locks in servicing requests from consistent requestors and inconsistent requesters. A database lock is a lock that is obtained in response to performing a database operation, and the database lock is released when the database operation has successfully completed. A file system operation lock is a lock that is obtained in response to performing an OPEN file system operation, and the file system operation lock is released when a CLOSE file system operation is performed. The database server may use a temporary copy of the resource, which reflects all the current changes that have been made to the resource by database operations, in servicing consistent requestors, and may use the original version of the resource in servicing inconsistent requesters.

摘要翻译： 提供了一种在数据库服务器上提供文件系统操作锁的方法和装置。 数据库服务器可以使用数据库锁和文件系统操作锁来处理来自一致请求者和不一致请求者的请求。 数据库锁是响应于执行数据库操作而获得的锁，并且数据库锁在数据库操作成功完成时被释放。 文件系统操作锁是响应于执行OPEN文件系统操作获得的锁，并且在执行CLOSE文件系统操作时释放文件系统操作锁定。 数据库服务器可以使用资源的临时副本，其反映了在数据库操作中对资源进行的所有当前更改，以服务一致的请求者，并且可以在为不一致的请求者服务时使用资源的原始版本。

公开(公告)号：US07409397B2

公开(公告)日：2008-08-05

申请号：US11172674

申请日：2005-06-30

申请人： Namit Jain ,  Syam Pannala ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar ,  Vikram Kapoor

发明人： Namit Jain ,  Syam Pannala ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar ,  Vikram Kapoor

IPC分类号： G06F17/30

CPC分类号： G06F17/30171 ,  G06F17/30233 ,  Y10S707/99931 ,  Y10S707/99942 ,  Y10S707/99943

摘要： A method and apparatus for performing network file system (NFS) operations across a plurality of servers is provided. At a first server, a filehandle for a particular file is generated based, at least in part, on an identifier that uniquely identifies the particular file relative to all other files within a file system repository. The file system repository may be implemented in a database. The identifier may also be stored in the database. The first server sends a client the filehandle. The client may thereafter send another request for the performance of a file operation, containing the filehandle, to a different server. The second server may read the filehandle and use the identifier to locate the file within the repository against which to perform the file operation without receiving, from the first server, information that associates the filehandle with the file.

摘要翻译： 提供了一种用于在多个服务器上执行网络文件系统（NFS）操作的方法和装置。 在第一服务器上，至少部分地基于唯一地标识特定文件相对于文件系统存储库内的所有其他文件的标识符生成特定文件的文件句柄。 文件系统存储库可以在数据库中实现。 标识符也可以存储在数据库中。 第一台服务器向客户端发送文件句柄。 然后，客户端可以向包含文件句柄的文件操作执行另一请求，到不同的服务器。 第二服务器可以读取文件句柄并且使用标识符来定位要在其中执行文件操作的存储库内的文件，而不从第一服务器接收将文件句柄与该文件相关联的信息。

公开(公告)号：US20070005604A1

公开(公告)日：2007-01-04

申请号：US11172674

申请日：2005-06-30

申请人： Namit Jain ,  Syam Pannala ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar ,  Vikram Kapoor

发明人： Namit Jain ,  Syam Pannala ,  Sam Idicula ,  Nipun Agarwal ,  Eric Sedlar ,  Vikram Kapoor

IPC分类号： G06F17/30

CPC分类号： G06F17/30171 ,  G06F17/30233 ,  Y10S707/99931 ,  Y10S707/99942 ,  Y10S707/99943

摘要： A method and apparatus for performing network file system (NFS) operations across a plurality of servers is provided. At a first server, a filehandle for a particular file is generated based, at least in part, on an identifier that uniquely identifies the particular file relative to all other files within a file system repository. The file system repository may be implemented in a database. The identifier may also be stored in the database. The first server sends a client the filehandle. The client may thereafter send another request for the performance of a file operation, containing the filehandle, to a different server. The second server may read the filehandle and use the identifier to locate the file within the repository against which to perform the file operation without receiving, from the first server, information that associates the filehandle with the file.

摘要翻译： 提供了一种用于在多个服务器上执行网络文件系统（NFS）操作的方法和装置。 在第一服务器上，至少部分地基于唯一地标识特定文件相对于文件系统存储库内的所有其他文件的标识符生成特定文件的文件句柄。 文件系统存储库可以在数据库中实现。 标识符也可以存储在数据库中。 第一台服务器向客户端发送文件句柄。 然后，客户端可以向包含文件句柄的文件操作执行另一请求，到不同的服务器。 第二服务器可以读取文件句柄并且使用标识符来定位要在其中执行文件操作的存储库内的文件，而不从第一服务器接收将文件句柄与该文件相关联的信息。