International Business Machines Corporation

Beijing Dajia Internet Information Technology Co., Ltd.

Yu Hang Gao

Min Yang

Xiao Liang Hu

Wei Shi

Chang Yan Chi

Wen Peng Xiao

Hang Shen

Erqi Chen

A method for primary-backup server switching. A control server monitors whether a primary server fails. The control server is in communication connection with the primary server and a backup server. The primary server is provided with a primary memory database. The primary memory database is configured to save in real time state information of the primary server each time after an operation is executed, and the state information is read and saved in real time by a backup memory database in a backup server. In response to a failure of the primary server, the control server sends a primary-backup switching command to the backup server. The primary-backup switching command is configured to instruct the backup server to upgrade itself to become a new primary server according to the state information saved in the backup memory database.

Method for primary-backup server switching, and control server

The present invention provides a document editor and a method for editing document to facilitate the collaboration between users. The document editor comprises a user interface for editing and displaying document information; a dispatcher for identifying objects in the user interface and their identifiers according to object definition, and providing the object information to the user interface; and at least one connector, for communicating with remote or local service using the identifier and address of at least one of the objects, to exchange the object information with the remote or local service and transfer the information to the dispatcher. According to the document editor and the method for editing document, a user could obtain more information of the object embedded in the document and effectively avoid operation failure on the object.

Document editor and method for editing document

A method, apparatus, and system for maintaining corresponding relationships between at least one chat transcript and related chat content in an instant messaging system may include establishing a chat session in the instant messaging system. Corresponding chat content may be displayed synchronously according to a changed address of the chat content. The changed address of the chat content may be inserted into a chat transcript, and the chat transcript may be segmented into at least two segments to create a segmented chat transcript. The segmented chat transcript and corresponding relationship between the changed address of the chat content and corresponding chat transcript segments may be stored.

Maintaining corresponding relationships between chat transcripts and related chat content

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Beijing, China

Yu Hang Gao