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公开(公告)号：US20160321304A9
公开(公告)日：2016-11-03
申请号：US13936061
申请日：2013-07-05
Applicant: Oracle International Corporation
Inventor： Carol L. Colrain , Kevin S. Neel , Tong Zhou , Douglas N. Surber , Stefan Heinrich Roesch , Nancy R. Ikeda
IPC: G06F17/30
CPC classification number: G06F17/30289 , G06F17/30371
Abstract: A process, apparatus, and computer-readable medium are provided for rebuilding a database session when a previous database session becomes unavailable and the commands previously sent for execution on the previous database session satisfy certain criteria. The process includes determining whether or not a set of commands sent by a client for execution on the previous database session is acceptable to replay based at least in part on whether or not the set of commands satisfies one or more criteria. The process further includes determining that the previous database session is unavailable due to a planned or unplanned recoverable error. In response to determining that the previous database session is unavailable, if the set of commands is acceptable for replay, the set of commands is sent for execution on a new database session to rebuild the state, which was exposed to the client from the previous database session, on the new database session. The process masks the outage from the application.
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2.发明授权公开(公告)号：US09124670B2
公开(公告)日：2015-09-01
申请号：US14231347
申请日：2014-03-31
Applicant: Oracle International Corporation
Inventor： Kevin S. Neel , Carol L. Colrain , Douglas N. Surber , Nancy R. Ikeda , Stefan Heinrich Roesch , Tong Zhou , Jean De Lavarene
CPC classification number: H04L67/42 , G06F11/1443 , G06F11/1474 , H04L67/142 , H04L67/146 , H04L67/148 , H04L67/327
Abstract: Transactional and non-transactional data for maintaining session state is described. In a session, a server instance receives, from a client, a request to execute transactional commands and non-transactional commands. The server instance sends at least one first directive executable at the client to store, in a first set of information, one or more first items representing one or more particular transactional commands that are open but not yet committed. The first set of information is maintained separately from a second set of information including one or more second items representing one or more particular non-transactional commands that have been processed. Based on committing one or more particular transactional commands, the server instance sends at least one second directive executable at the client to purge, from the first set of information, the one or more first items without purging, from the second set of information, the one or more second items.
Abstract translation: 描述用于维护会话状态的事务和非事务性数据。 在会话中，服务器实例从客户端接收执行事务命令和非事务命令的请求。 服务器实例在客户端处发送至少一个第一指令可执行文件，以在第一组信息中存储一个或多个表示一个或多个已经开放但尚未提交的特定事务命令的第一项。 第一组信息与第二组信息分开维护，包括表示一个或多个已处理的特定非事务性命令的一个或多个第二项。 基于提交一个或多个特定事务命令，服务器实例在客户端发送至少一个第二指令可执行文件，从第一组信息中清除一个或多个第一项目，而不从第二组信息中清除 一个或多个第二个项目。
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公开(公告)号：US20130297566A1
公开(公告)日：2013-11-07
申请号：US13936061
申请日：2013-07-05
Applicant: Oracle International Corporation
Inventor： Carol L. Colrain , Kevin S. Neel , Tong Zhou , Douglas N. Surber , Stefan Heinrich Roesch , Nancy R. Ikeda
IPC: G06F17/30
CPC classification number: G06F17/30289 , G06F17/30371
Abstract: A process, apparatus, and computer-readable medium are provided for rebuilding a database session when a previous database session becomes unavailable and the commands previously sent for execution on the previous database session satisfy certain criteria. The process includes determining whether or not a set of commands sent by a client for execution on the previous database session is acceptable to replay based at least in part on whether or not the set of commands satisfies one or more criteria. The process further includes determining that the previous database session is unavailable due to a planned or unplanned recoverable error. In response to determining that the previous database session is unavailable, if the set of commands is acceptable for replay, the set of commands is sent for execution on a new database session to rebuild the state, which was exposed to the client from the previous database session, on the new database session. The process masks the outage from the application.
Abstract translation: 提供了一种过程，装置和计算机可读介质，用于在先前数据库会话变得不可用时重建数据库会话，并且先前发送用于执行先前数据库会话的命令满足特定标准。 该过程包括确定至少部分地基于该组命令是否满足一个或多个标准来确定由客户端发送的用于在先前的数据库会话上执行的一组命令是否可接受重播。 该过程还包括由于计划的或计划外的可恢复的错误确定先前的数据库会话不可用。 响应于确定先前的数据库会话不可用，如果该组命令对于重放是可接受的，则该组命令被发送以在新的数据库会话上执行以重建从先前数据库向客户端公开的状态 会话，在新的数据库会话。 该过程掩盖了应用程序中断。
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Patent Agency Ranking
4.发明授权公开(公告)号：US09591103B2
公开(公告)日：2017-03-07
申请号：US14748451
申请日：2015-06-24
Applicant: Oracle International Corporation
Inventor： Kevin S. Neel , Carol L. Colrain , Douglas N. Surber , Nancy R. Ikeda , Stefan Heinrich Roesch , Tong Zhou , Jean De Lavarene
CPC classification number: H04L67/42 , G06F11/1443 , G06F11/1474 , H04L67/142 , H04L67/146 , H04L67/148 , H04L67/327
Abstract: Transactional and non-transactional data for maintaining session state is described. In a session, a server instance receives, from a client, a request to execute transactional commands and non-transactional commands. The server instance sends at least one first directive executable at the client to store, in a first set of information, one or more first items representing one or more particular transactional commands that are open but not yet committed. The first set of information is maintained separately from a second set of information including one or more second items representing one or more particular non-transactional commands that have been processed. Based on committing one or more particular transactional commands, the server instance sends at least one second directive executable at the client to purge, from the first set of information, the one or more first items without purging, from the second set of information, the one or more second items.
Abstract translation: 描述用于维护会话状态的事务和非事务性数据。 在会话中，服务器实例从客户端接收执行事务命令和非事务命令的请求。 服务器实例在客户端处发送至少一个第一指令可执行文件，以在第一组信息中存储一个或多个表示一个或多个已经开放但尚未提交的特定事务命令的第一项。 第一组信息与第二组信息分开维护，包括表示一个或多个已处理的特定非事务性命令的一个或多个第二项。 基于提交一个或多个特定事务命令，服务器实例在客户端发送至少一个第二指令可执行文件，从第一组信息中清除一个或多个第一项目，而不从第二组信息中清除 一个或多个第二个项目。
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公开(公告)号：US10942907B2
公开(公告)日：2021-03-09
申请号：US15803644
申请日：2017-11-03
Applicant: Oracle International Corporation
Inventor： Carol L. Colrain , Kevin S. Neel , Douglas N. Surber , Tong Zhou , Nancy R. Ikeda , Jean De Lavarene , Rohan Ankalikar
Abstract: Techniques are described for closing one or more connections with a database management system (DBMS) as part of a planned operation such as maintenance and load balancing. In an embodiment, a request is received for a planned operation of a database server of a DBMS that requires releasing and migrating database sessions. Over a database connection with the database server, the DBMS or a Client-Driver on the client system that interfaces with the DBMS, may receive request(s) from the client system. Based on the request(s), a safe point, for the database connection with the database server, at which the database connection of the client system with the database server can be closed without affecting the success of execution of next one or more command that the client system intended to request the DBMS to execute on the database server, is determined. In an embodiment, in response to the request(s), the DBMS and/or Client-Driver, while the connection is valid, provide to the client system an invalid status for a connection test request. Such a response may cause the client system to use a different database connection to connect with the DBMS. After returning the response to the client system, the DBMS and/or Client-Driver causes the database session with the DBMS to close. In an embodiment, for database sessions to be released, the DBMS identifies a safe point in a database session by a detected request boundary or where the session states are determined to be recoverable or the failover is determined to be expected to succeed. At such a safe point, all database session states are known, and failing the session over to another database instance offering the requested service can be performed safely and transparent to applications.
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公开(公告)号：US09779116B2
公开(公告)日：2017-10-03
申请号：US13936061
申请日：2013-07-05
Applicant: Oracle International Corporation
Inventor： Carol L. Colrain , Kevin S. Neel , Tong Zhou , Douglas N. Surber , Stefan Heinrich Roesch , Nancy R. Ikeda , Paul Parkinson
IPC: G06F17/30
CPC classification number: G06F17/30289 , G06F17/30371
Abstract: A process, apparatus, and computer-readable medium are provided for rebuilding a database session when a previous database session becomes unavailable and the commands previously sent for execution on the previous database session satisfy certain criteria. The process includes determining whether or not a set of commands sent by a client for execution on the previous database session is acceptable to replay based at least in part on whether or not the set of commands satisfies one or more criteria. The process further includes determining that the previous database session is unavailable due to a planned or unplanned recoverable error. In response to determining that the previous database session is unavailable, if the set of commands is acceptable for replay, the set of commands is sent for execution on a new database session to rebuild the state, which was exposed to the client from the previous database session, on the new database session. The process masks the outage from the application.
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公开(公告)号：US20150326673A1
公开(公告)日：2015-11-12
申请号：US14748451
申请日：2015-06-24
Applicant: Oracle International Corporation
Inventor： Kevin S. Neel , Carol L. Colrain , Douglas N. Surber , Nancy R. Ikeda , Stefan Heinrich Roesch , Tong Zhou , Jean De Lavarene
CPC classification number: H04L67/42 , G06F11/1443 , G06F11/1474 , H04L67/142 , H04L67/146 , H04L67/148 , H04L67/327
Abstract: Transactional and non-transactional data for maintaining session state is described. In a session, a server instance receives, from a client, a request to execute transactional commands and non-transactional commands. The server instance sends at least one first directive executable at the client to store, in a first set of information, one or more first items representing one or more particular transactional commands that are open but not yet committed. The first set of information is maintained separately from a second set of information including one or more second items representing one or more particular non-transactional commands that have been processed. Based on committing one or more particular transactional commands, the server instance sends at least one second directive executable at the client to purge, from the first set of information, the one or more first items without purging, from the second set of information, the one or more second items.
Abstract translation: 描述用于维护会话状态的事务和非事务性数据。 在会话中，服务器实例从客户端接收执行事务命令和非事务命令的请求。 服务器实例在客户端处发送至少一个第一指令可执行文件，以在第一组信息中存储一个或多个表示一个或多个已经开放但尚未提交的特定事务命令的第一项。 第一组信息与第二组信息分开维护，包括表示一个或多个已处理的特定非事务性命令的一个或多个第二项。 基于提交一个或多个特定事务命令，服务器实例在客户端发送至少一个第二指令可执行文件，从第一组信息中清除一个或多个第一项目，而不从第二组信息中清除 一个或多个第二个项目。
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公开(公告)号：US20140229531A1
公开(公告)日：2014-08-14
申请号：US14231347
申请日：2014-03-31
Applicant: Oracle International Corporation
Inventor： Kevin S. Neel , Carol L. Colrain , Douglas N. Surber , Nancy R. Ikeda , Stefan Heinrich Roesch , Tong Zhou , Jean De Lavarene
IPC: H04L29/06
CPC classification number: H04L67/42 , G06F11/1443 , G06F11/1474 , H04L67/142 , H04L67/146 , H04L67/148 , H04L67/327
Abstract: Transactional and non-transactional data for maintaining session state is described. In a session, a server instance receives, from a client, a request to execute transactional commands and non-transactional commands. The server instance sends at least one first directive executable at the client to store, in a first set of information, one or more first items representing one or more particular transactional commands that are open but not yet committed. The first set of information is maintained separately from a second set of information including one or more second items representing one or more particular non-transactional commands that have been processed. Based on committing one or more particular transactional commands, the server instance sends at least one second directive executable at the client to purge, from the first set of information, the one or more first items without purging, from the second set of information, the one or more second items.
Abstract translation: 描述用于维护会话状态的事务和非事务性数据。 在会话中，服务器实例从客户端接收执行事务命令和非事务命令的请求。 服务器实例在客户端处发送至少一个第一指令可执行文件，以在第一组信息中存储一个或多个表示一个或多个已经开放但尚未提交的特定事务命令的第一项。 第一组信息与第二组信息分开维护，包括表示一个或多个已处理的特定非事务性命令的一个或多个第二项。 基于提交一个或多个特定事务命令，服务器实例在客户端发送至少一个第二指令可执行文件，从第一组信息中清除一个或多个第一项目，而不从第二组信息中清除 一个或多个第二个项目。
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