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Error tolerance method in wireless public object request proxy construction application

A technology of object request agent and object, which is applied in the direction of data exchange through path configuration, digital transmission system, electrical components, etc. It can solve the problems of seamless integration, no extension of wireless CORBA fault-tolerant specification, and no use of CORBA object-oriented service framework, etc. problem, to achieve the effect of good upward compatibility and reliable service

Inactive Publication Date: 2009-06-17
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. Object Management Group.Telecom wireless CORBA.OMG Document formal Version 1.2 / 05-05-02, May 2005. The wireless CORBA specification released by OMG in 2005, there is no related wireless CORBA fault-tolerant specification extension
3. Chen Xinyu, John, C.S.Lui.Message Logging and Recovery inWireless CORBA Using Access Bridge. This document uses process checkpoint technology, does not use the CORBA object-oriented service framework, and cannot be seamlessly combined with the CORBA object-oriented service fault-tolerant framework

Method used

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  • Error tolerance method in wireless public object request proxy construction application
  • Error tolerance method in wireless public object request proxy construction application
  • Error tolerance method in wireless public object request proxy construction application

Examples

Experimental program
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specific Embodiment approach 1

[0052] Wireless CORBA active redundant fault-tolerant mode.

[0053] Specifically, the replication manager sends the object creation request create_object() 41 with attributes set to the access bridges A1 and A2, and the access bridges A1 and A2 forward the request to the corresponding mobile terminals T1 and T2 respectively, according to the corresponding Parameters and initialization require mobile terminals T1 and T2 to use their own object factories 16 to create objects S1 and S2 respectively to complete the creation of fault-tolerant object groups, such as Figure 4 shown.

[0054] Using object group reference, the message of the client object is sent to the service objects S1 and S2 which are backups of each other at the same time, before forwarding the GIOP message 42 to the mobile terminal objects S1 and S2, the logging mechanisms 31 of the access bridges A1 and A2 respectively store the The GIOP message 42 is a log, and then forwards this message to the purpose mobil...

specific Embodiment approach 2

[0058] Wireless CORBA passive redundant fault-tolerant mode.

[0059] Specifically, the replication manager sends the object creation request create_object() 41 with attributes set to the access bridges A1 and A2, and the access bridges A1 and A2 forward the request to the corresponding mobile terminals T1 and T2 respectively, according to the corresponding Parameters and initialization require mobile terminals T1 and T2 to use their own object factories 16 to create objects S1 and S2 respectively to complete the creation of fault-tolerant object groups. Among them, S1 is the main service object to process object requests from customers, such as Figure 4 shown.

[0060] Using the object group reference, the client object GIOP message 42 is sent to the main service object S1 and the non-main service object S2 of the fault-tolerant object group at the same time, before forwarding the GIOP message 42 to the mobile terminal object S1, the logging mechanism 31 of the access bridge...

specific Embodiment approach 3

[0065] Non-recoverable fault tolerance of mobile terminal under active redundancy mode.

[0066] Specifically, the replication manager sends the object creation request create_object() 41 with attributes set to the access bridges A1 and A2, and the access bridges A1 and A2 forward the request to the corresponding mobile terminals T1 and T2 respectively, according to the corresponding Parameters and initialization require mobile terminals T1 and T2 to use their own object factories 16 to create objects S1 and S2 respectively to complete the creation of fault-tolerant object groups, such as Figure 4 shown.

[0067] Using object group reference, the message of the client object is sent to the service objects S1 and S2 which are backups of each other at the same time, before forwarding the GIOP message 42 to the mobile terminal objects S1 and S2, the logging mechanisms 31 of the access bridges A1 and A2 respectively store the The GIOP message 42 is a log, and then forwards this ...

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Abstract

The invention provides a method for tolerating faults, which is applied in a wireless public object request agent structure. The method comprises: realizing the creation of a mobile terminal object duplicate under the assistance of an accessing bridge object request agent layer, utilizing an accessing bridge log recording mechanism 31of the accessing bridge object request agent layer to record and store mobile terminal object state detecting points and mobile terminal object message events, realizing the detection of mobile terminal object failures under the assistance of the accessing bridge object request agent layer, realizing the deletion of mobile terminal failure objects under the assistance of the accessing bridge object request agent layer, and realizing the recovery of the mobile terminal failure objects under the assistance of the accessing bridge object request agent layer. The method fully utilizes a CORBA error tolerant basic facility and a mechanism in an existing CORBA 3.0.3 criterion, enlarges an ORB layer of the accessing bridge in the wireless CORBA, and can be jointed with the existing CORBA 3.0.3 criterion and a wireless CORBA 1.2 criterion without slots to satisfy the demands of applying the wireless public object request agent structure on the aspects of reliable and real time performance.

Description

(1) Technical field [0001] The present invention relates to a fault-tolerant method for application layer middleware in a service-oriented distributed field, more specifically, a fault-tolerant method in the application of a wireless public object request proxy structure, which is used in an object-oriented wireless distributed system . (2) Background technology [0002] CORBA technology, as a standard to solve application system interconnection and interoperability in a distributed heterogeneous environment, has been accepted by many manufacturers and users. Because CORBA is independent of network protocols, programming languages, and software and hardware platforms, it greatly simplifies the development of distributed applications and is adopted by more and more distributed systems, especially in large-scale distributed heterogeneous software systems. In the fields of telecommunications, finance and monitoring systems, CORBA is getting more and more attention and applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/26H04L12/24H04L12/46
Inventor 门朝光徐振朋
Owner HARBIN ENG UNIV
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