Method for asynchronously transmitting data

Abstract

The invention discloses a method for asynchronously transmitting data. The method comprises the steps of: starting a service agent activity in a message initializing database and a message target database; creating a message type and a message contract in the initializing database and the target database; creating message queues for the initializing database and the target database; creating service endpoints, then binding the message queues to one or more contracts by using the service endpoints; defining one or one group of tasks by a service use queue and the contracts; starting conversation; reading a message from the queue by a receiver; sending a corresponding message to an initiator by the receiver through using the existing conversation handle of the initiator, ending the current conversation; increasing an acknowledgement message type in an initiator queue; inquiring a queue message by the initiator, if the initiator finds the acknowledgement message type, ending the current conversation; and ending the safe conversation process. According to the invention, an application program calling party can be broken away from the traditional synchronization waiting mechanism, and an application front end can be used for responding more front-end requests.

Description

technical field [0001] The invention belongs to the technical field of computers and networks, and relates to a data transmission method, in particular to an asynchronous data transmission method. Background technique [0002] Nowadays, with the vigorous rise of network applications, more and more Internet companies and large enterprises attach great importance to off-site data backup. Especially for database-centric applications, enterprise data is the lifeline. Any data loss and damage will affect the company's business development. [0003] The existing common practice is to use database backup software or system backup tools to perform daily full backup and hourly differential backup of data at the data file level, and transfer the data to a remote data center through a dedicated network for backup. [0004] This mode actually brings great challenges to the business in terms of operation and maintenance. First of all, when an accident occurs, all data restore points wi...

AI Technical Summary

Problems solved by technology

[0004] This mode actually brings great challenges to the business in terms of operation and maintenance. First of all, when an accident occurs, all data restore points will be lost due to lack of one hour, and real-time and effective backup cannot be achieved. Only the database files are backed up in different places. After an accident occurs, the operation and maintenance personnel need to restore these database files in different places to restore the business. It is not the most perfect solution in terms of data loss rate or business recovery time.

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