Distributed data management system and its method for dynamically subscribing data

Abstract

The invention discloses a distributed data management system, which consists of application module and data supervisor, wherein the application module installs data access module and data buffer; the data supervisor has subscription control module, subscription listing module, notice module and data accumulator; the application module installs dynamic subscription control module and data logging module; the data supervisor installs data distribution module; the data distribution module connects data supervisor; the dynamic subscription control module connects data record module, data buffer and data access module; the subscription control module connects inform module and data issue module. The invention discloses a dynamic subscription data method.

Description

Technical field [0001] The invention relates to a distributed data management system and a method for dynamically subscribing to data, in particular to a distributed data management system with a dynamic subscription management module, a data recording module and a data publishing module, and a dynamic subscription management module, data recording Modules and data publishing modules subscribe to remote data, dynamically manage cached data, and update cached data. Background technique [0002] Due to the complexity of software work, the work system is often composed of multiple devices located in different places. In this system, data is often not concentrated in one place, but distributed in various devices in different places. These data in various places are called For distributed data. Due to the needs of software work, the application modules in the working system often need to access these distributed data. If the application module and the data to be accessed are not in th...

AI Technical Summary

Problems solved by technology

[0004] As mentioned above, although the existing technology caches the remote data in the hardware device where the application module is located to realize the synchronization of the cached data and the corresponding remote data, however, when the application module subscribes to the remote data, the subscription is relatively rough, and often simply subscribes to a class Data, for example: subscribing to the data of the "School" category in the data store, and in actual applications, the application module only needs to use part of the data in a category of data For other data that is not accessed, such as the data of other schools except A primary school, when it changes, the notification module still continuously updates it through network communication; at the same time, the application module in the prior art subscribes to remote data. Static subscription method, that is, the application module usually only needs to use certain data for a certain period of time, and the data will no longer be used after a period of time, but the application module cannot cancel the subscription in time after subscribing to the data, and the consequences caused by this When the remote data not required by the application module changes, the notification module will continue to update it through network communication, and the working system will continue to process it. This transmission and processing of unnecessary data increases the network burden and reduces the Overall performance of the working system

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