State synchronous system and method

A state synchronization, service state technology, applied in transmission systems, multi-frequency code systems, digital transmission systems, etc., can solve problems such as inconsistency and failure of service cooperation

Inactive Publication Date: 2008-01-02
BENQ CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the value of the common state is stored (cache) in the device, different devices can maintain the stored common state in diff

Method used

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  • State synchronous system and method
  • State synchronous system and method

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Embodiment Construction

[0019] FIG. 1 is a schematic diagram showing a network architecture of a state synchronization system 10 according to an embodiment of the present invention. Preferably, the network architecture includes personal computers 11 , 13 , 15 , 17 and 19 . Among them, the personal computers 11, 13, 15, 17, and 19 may be connected to each other in a wired-connection, wireless connection, or a mixture of wired-connection and wireless connection. Those skilled in the art know that the connection between the personal computers 11, 13, 15, 17 and 19 may need to pass through multiple proxy nodes, such as wireless access point (access point), base station (base station), hub (hub) , bridge (bridge), router (router) or other proxy nodes used to handle network communications. The state synchronization system 10 adopts a publisher-subscriber model or a push model for state change notification. Specifically, the personal computer 11 advertises provided services on the network, so that the per...

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Abstract

The invention provides a state synchronizing method, which is executed by a first electric device. The method comprises that obtaining a first service state version recognize code stored in a local high-speed buffer of the first electric device, receiving a second service version recognize code sent from a second electric device, judging if the first service state version recognize code is older than the second one, and when the first code is older than the second one, inquiring and obtaining new service state value from a third electric device and a third service state version recognize code relative to the obtained service state value. The first, second and third electric devices are formed into event broadcast tree structure, while the third electric device is at the root node, and the first and second electric devices are at the blade nodes of the structure.

Description

technical field [0001] The invention relates to an event synchronization technology, in particular to a state synchronization system and method in a large-scale distributed service environment. Background technique [0002] Devices in a distributed environment (especially in an event-driven service management system) can share common states to achieve service coordination and collaboration. Generally speaking, in a service management system, notification of service state changes can be performed in an asynchronous manner, that is, a service (or a central management platform) notifies all devices of all changed states one by one. However, when the value of the common state is stored (cache) in the device, different devices can maintain the stored common state in different ways, so different devices may have inconsistent values ​​of the common state, resulting in failure of service cooperation situation. Therefore, there is a need for a state synchronization device and metho...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L27/26H04L29/00G06F9/46G06F13/42
Inventor 胡志麟
Owner BENQ CORP
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