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1. 发明申请

WO2013036882A1 MASKING SERVER OUTAGES FROM CLIENTS AND APPLICATIONS 审中-公开
标题翻译：从客户和应用程序中屏蔽服务器
公开(公告)号：WO2013036882A1
公开(公告)日：2013-03-14
申请号：PCT/US2012/054326
申请日：2012-09-07
申请人： ORACLE INTERNATIONAL CORPORATION , NEEL, Kevin S. , COLRAIN, Carol L. , SURBER, Douglas N. , IKEDA, Nancy R. , ROESCH, Stefan Heinrich , ZHOU, Tong , LAVARENE, Jean De
发明人： NEEL, Kevin S. , COLRAIN, Carol L. , SURBER, Douglas N. , IKEDA, Nancy R. , ROESCH, Stefan Heinrich , ZHOU, Tong , LAVARENE, Jean De
IPC分类号： H04L29/08
CPC分类号： H04L67/42 , G06F11/1443 , G06F11/1474 , H04L67/142 , H04L67/146 , H04L67/148 , H04L67/327
摘要： Methods, devices, and computer-readable media are provided for restoring state that was built up on a first session between a first server instance and a client to a second session between a second server instance and the client. Non-transactional session state that existed for the first session is preserved by repeating non-transactional commands in the second session. Transactions are executed in the second session when the transactions did not complete in the first session. The first server instance sends, to the client in the first session, information to maintain for a possible replay of commands that were sent in a request to the first server instance for execution in the first session. If the first session becomes unavailable, the maintained information may be used by the second server instance to restore the database session, masking the outage from users, applications, and clients.
摘要翻译：提供了方法，设备和计算机可读介质，用于将在第一服务器实例和客户端之间的第一会话上建立的状态恢复到第二服务器实例和客户端之间的第二会话。存在于第一个会话的非事务会话状态通过在第二个会话中重复非事务性命令来保留。当第一个会话中没有完成事务时，在第二个会话中执行事务。第一个服务器实例向第一个会话中的客户端发送信息，以维护在第一个服务器实例的请求中发送的命令的可能重放，以便在第一个会话中执行。如果第一个会话不可用，则第二个服务器实例可以使用维护的信息来恢复数据库会话，从而掩盖用户，应用程序和客户端的中断。

2. 发明申请

WO2013036871A1 IDEMPOTENCE FOR DATABASE TRANSACTIONS 审中-公开
标题翻译：数据库交易的理想
公开(公告)号：WO2013036871A1
公开(公告)日：2013-03-14
申请号：PCT/US2012/054311
申请日：2012-09-07
申请人： ORACLE INTERNATIONAL CORPORATION , COLRAIN, Carol, L. , ROESCH, Stefan, Heinrich , NEEL, Kevin, S.
发明人： COLRAIN, Carol, L. , ROESCH, Stefan, Heinrich , NEEL, Kevin, S.
IPC分类号： H04L29/08
CPC分类号： H04L67/142 , H04L67/146 , H04L67/148 , H04L67/42
摘要： A method, machine, and computer-readable medium is provided for managing transactional sets of commands sent from a client to a server for execution. A first server reports logical identifiers that identify transactional sets of commands to a client. The first server commits information about a set of commands to indicate that the set has committed. A second server receives, from the client, a request that identifies the set based on the logical identifier that the client had received. The second server determines whether the request identified the latest set received for execution in a corresponding session and whether any transactions in the set have not committed. If any transaction has not committed, the second server enforces uncommitted state of the identified set by blocking completion of the identified set issued in the first session. The identified set may then be executed in the second session without risk of duplication.
摘要翻译：提供了一种方法，机器和计算机可读介质，用于管理从客户机发送到服务器以执行的事务性命令集。第一个服务器报告向客户端标识事务性命令集的逻辑标识符。第一个服务器提交有关一组命令的信息，以指示该集合已提交。第二服务器从客户端接收基于客户端已经接收的逻辑标识符来标识集合的请求。第二个服务器确定请求是否识别出在相应会话中接收到的用于执行的最新集合，以及集合中的任何事务是否都未提交。如果任何交易尚未提交，则第二服务器通过阻止在第一个会话中发布的已识别集合的完成来强制所识别集合的未提交状态。所识别的集合然后可以在第二会话中被执行，而不会有重复的风险。

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