CN101820365B - Service bus supporting dynamic optimization of QoS of composite service - Google Patents
Service bus supporting dynamic optimization of QoS of composite service Download PDFInfo
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- CN101820365B CN101820365B CN2010100336688A CN201010033668A CN101820365B CN 101820365 B CN101820365 B CN 101820365B CN 2010100336688 A CN2010100336688 A CN 2010100336688A CN 201010033668 A CN201010033668 A CN 201010033668A CN 101820365 B CN101820365 B CN 101820365B
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Abstract
The invention discloses a service bus supporting the dynamic optimization of QoS of composite service, which comprises a service monitoring module and a service adjustment module, wherein the service monitoring module is used for monitoring whether the QoS of the composite service meets QoS constraint conditions of the composite service, and sending an adjustment request to the service adjustment module when detecting that the QoS of the composite service does not meet the QoS constraint conditions of the composite service; and the service adjustment module is used for adjusting atomic services in the composite service by executing a dynamic adjusting algorithm for the QoS of the service so as to make the QoS of the composite service meet the QoS constraint conditions of the composite service. By monitoring the QoS of the composite service in real time and carrying out corresponding adjustment in the process of executing the composite service, the service bus supporting the dynamic optimization of the QoS of the composite service guarantees the stability of the QoS of the composite service, and makes the composite service provided by the service bus for a user have steady and reliable QoS.
Description
Technical field
The present invention relates to field of computer technology, particularly a kind of service bus of supporting composite services QoS dynamic optimization.
Background technology
Growth along with the web quantity of service; The user is to service quality (the Quality ofService of web service; Hereinafter to be referred as QoS) certain requirement also proposed; The QoS of service can go to weigh from many aspects, comprises like traditional service QoS attribute: the response time: the duration that the request of service requester institute is served is accomplished in service; Service price: the expense of using service that the ISP provided to produce because of service requester; Accessibility: services request can arrive the probability of web service; Credit worthiness: Web service sometime the section in the generation the formed global assessment of trading activity.
In the application of web service, service bus provides complex conversion, route and loose coupling linkage function as the bridge that service connects.Along with the growth of web quantity of service, the service that service bus can be selected also increases thereupon.To certain specific demand for services, there are multiple choices in the user, hopes to obtain inquiring about the service of books like the user, may have the service of the inquiry books that a plurality of different enterprises provide, and possibly there is very big difference in the QoS of these services.
In the web environment; The web service of satisfying the identical function demand and having a different QoS (like time of implementation, expense, accessibility, credit worthiness etc.) exists a plurality of; Service bus needs therefrom selection to satisfy the atomic service of each service node functional requirement, forms composite services of satisfying user QoS demand.Usually, the QoS of the atomic service of composite services is dynamic change, so the QoS of composite services also is dynamic change.
Existing service bus is when using; All be that the routing policy that needs predefined to serve well carries out static forwarding to services request; When carrying out service often through reading routing forwarding information; How this transmits and whether message need be modified to obtain current Simple Object Access Protocol (Simple Object Access Protocol is hereinafter to be referred as SOAP) message, and such service bus all is artificially to define forwarding strategy in advance to transmit again.Perhaps carrying out dynamic routing by service bus according to the content of service request information transmits.
In realizing process of the present invention; The inventor finds that the service bus of prior art is when carrying out composite services, and the QoS according to service does not carry out the corresponding dynamic routing forwarding; And the QoS of composite services is dynamic changes; Composite services its QoS when carrying out processings that be not optimized, so the stability of the QoS of the composite services that can not guarantee to carry out, service bus can not guarantee to have reliable and stable QoS for the composite services that the user provides.
Summary of the invention
The embodiment of the invention provides a kind of service bus of supporting composite services QoS dynamic optimization, to realize dynamic monitoring and the optimization process to composite services, guarantees that service bus is that the composite services that the user provides have reliable and stable QoS.
The embodiment of the invention provides a kind of service bus of supporting composite services service quality QoS dynamic optimization, comprising:
The composite services analysis module; Be used to receive the request of the composite services that client sends and the QoS constraints of said composite services; Resolve the flowage structure of said composite services, and the QoS constraints of the request of said composite services, said composite services and the flowage structure of said composite services are sent to the service matching module;
Said service matching module; Be used to obtain the QoS information of the atomic service of said composite services; QoS information according to said atomic service; Carry out the service QoS dynamical Matching Algorithm, the atomic service in atomic service in the flowage structure of said composite services and the Service Source storehouse is mated, so that the QoS of the said composite services after the matching treatment satisfies the QoS constraints of said composite services;
The service call proxy module; Be used for matching result, obtain the atomic service of said coupling according to said atomic service, and according to the request of said composite services; The atomic service of said coupling is sent to the service execution engine, carries out the atomic service of said coupling for the service execution engine;
The service monitoring module, whether the QoS that is used to monitor composite services satisfies the QoS constraints of said composite services; When the QoS that detects said composite services does not satisfy the QoS constraints of said composite services, then send the adjustment request to service adjustment module, ask said service adjustment module that the atomic service in the composite services is adjusted;
Service adjustment module; Be used for after receiving the adjustment request that said service monitoring module is sent; Carry out the dynamic adjustment algorithm of service QoS the atomic service in the said composite services is adjusted, so that the QoS of adjusted said composite services satisfies the QoS constraints of said composite services.
Said service monitoring module; Whether the QoS that is used to detect the atomic service of said composite services has change; When the QoS of the atomic service that detects said composite services has change; Whether the QoS that further detects current composite services can satisfy the QoS constraints of said composite services, when the QoS that detects said current composite services does not satisfy the QoS constraints of said composite services, then sends the adjustment request to said service adjustment module.
Said service adjustment module is used to carry out the dynamic adjustment algorithm of preset service QoS, unenforced atomic service in the said composite services is adjusted, so that the QoS of adjusted said composite services satisfies the QoS constraints of said composite services.
Said service bus also comprises:
The composite services scheduler module is used to receive the request of said composite services, and carries out the dynamic dispatching algorithm of services request, said composite services is dispatched on the minimum composite services execution engine of load carries out.
The service bus of the support composite services QoS dynamic optimization that the embodiment of the invention provides; Through in the process of carrying out composite services; The QoS of monitoring composite services in real time; When the QoS of composite services can not satisfy the QoS constraints of said composite services, then the atomic service of composite services is adjusted accordingly, so that adjusted composite services can be satisfied the QoS constraints of said composite services at QoS; Guaranteed the stability of the QoS of composite services, made service bus can have reliable and stable QoS for the composite services that the user provides.
Description of drawings
The service bus structural representation of the support composite services QoS dynamic optimization that Fig. 1 provides for one embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not paying the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is the service bus of the support composite services QoS dynamic optimization that provides of one embodiment of the invention; As shown in Figure 1; This service bus comprises with lower module at least, composite services analysis module 11, service matching module 12, service call proxy module 13, composite services scheduler module 14, service monitoring module 15 and service adjustment module 16.
When client when service bus has sent the composite services request, then receive the composite services requests, and carry out relevant treatment through service matching module 12 and service call proxy module 13 by combinatory analysis module 11, carry out these composite services for the service execution engine.The function of this each module of service bus is following:
Composite services analysis module 11; Be used to receive the request of the composite services that client sends and the QoS constraints of these composite services; Resolve the flowage structure of these composite services, and the request of these composite services, the QoS constraints of these composite services and the flowage structure of these composite services are sent to service matching module 12.
Wherein, atomic service promptly constitutes each service of composite services, and the service execution engine can directly be carried out each atomic service, and the QoS of atomic service can have nothing in common with each other, and composite services can be selected the atomic service of various combination, and its QoS also has nothing in common with each other accordingly.
Service call proxy module 13; Be used for matching result according to each atomic service of these composite services; Obtain the atomic service of this coupling; And, this atomic service of this coupling is sent to the service execution engine according to the request of these composite services, carry out the atomic service of this coupling for the service execution engine.
Wherein, when carrying out composite services, the composite services scheduler module 14 of this service bus is used to receive the request of these composite services, and carries out the dynamic dispatching algorithm of services request, composite services is dispatched on the minimum composite services execution engine of load carries out.
Optional, in the present embodiment, the service QoS dynamical Matching Algorithm can be selected genetic algorithm for use.
Further; The QoS of the atomic service in the composite services is dynamic change; When carrying out the composite services of client,, then need carry out real-time monitoring to the QoS of composite services for the QoS that guarantees composite services satisfies the preset restriction condition; When the QoS that detects composite services change has taken place and when not satisfying the QoS constraints of these composite services, then adjusts accordingly.Wherein, the attribute of QoS can comprise: response time, service price, accessibility and credit worthiness etc., the QoS constraints of these composite services can be the constraints to these attributes, as to the constraint of response time or to constraint of credit worthiness etc.
Wherein, information such as the response time of service, accessibility, service price and credit worthiness all are stored in the Service Source storehouse, and service monitoring module 15 can be obtained the relevant information of composite services from the Service Source storehouse, and the QoS of composite services is monitored.
Optional, in the present embodiment, the dynamic adjustment algorithm of service QoS can be selected genetic algorithm for use.
After the atomic service of 16 pairs of composite services of service adjustment module has been carried out adjustment.Then by service matching module 12; Obtain the QoS information of the atomic service of these adjusted composite services; QoS information according to this atomic service; Carry out the service QoS dynamical Matching Algorithm, the atomic service in this atomic service and the Service Source storehouse is mated, so that the QoS of these composite services after the matching treatment satisfies the QoS constraints of these composite services.
Further; Service call proxy module 13 is according to the matching result of each atomic service of these adjusted composite services; Obtain the atomic service of this coupling, and this atomic service that will mate is sent to the service execution engine, carries out the atomic service of this coupling for the service execution engine.
Can find out through above-mentioned explanation, when the QoS that detects composite services in service monitoring module 15 does not satisfy the QoS constraints of these composite services.Adjust through 16 pairs of composite services of service adjustment module, handle accordingly by service matching module 12 and service call proxy module 13 then, just realized dynamic adjustment thus composite services QoS.
When service adjustment module 16 receives the adjustment request; No longer adjust for executed atomic service; Therefore; Service adjustment module 16 is carried out the preset dynamic adjustment algorithm of service QoS, unenforced atomic service in these composite services is adjusted, so that the QoS of adjusted these composite services satisfies preset QoS constraint.
The service bus of the support composite services QoS dynamic optimization that the embodiment of the invention provides; Through in the process of carrying out composite services; The QoS of monitoring composite services in real time; When the QoS of composite services can not satisfy the QoS constraints of these composite services, then the atomic service of composite services is adjusted accordingly, so that adjusted composite services can be satisfied the QoS constraints of composite services at QoS; Guaranteed the stability of the QoS of composite services, made that service bus is that the composite services that the user provides can have reliable and stable QOS.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to technical scheme of the present invention to be described but not limit it; Although the present invention has been carried out detailed explanation with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, also can not make amended technical scheme break away from the spirit and the scope of technical scheme of the present invention and these are revised or be equal to replacement.
Claims (4)
1. a service bus of supporting composite services service quality QoS dynamic optimization is characterized in that, comprising:
The composite services analysis module; Be used to receive the request of the composite services that client sends and the QoS constraints of said composite services; Resolve the flowage structure of said composite services, and the QoS constraints of the request of said composite services, said composite services and the flowage structure of said composite services are sent to the service matching module;
Said service matching module; Be used to obtain the QoS information of the atomic service of said composite services; QoS information according to said atomic service; Carry out the service QoS dynamical Matching Algorithm, the atomic service in atomic service in the flowage structure of said composite services and the Service Source storehouse is mated, so that the QoS of the said composite services after the matching treatment satisfies the QoS constraints of said composite services;
The service call proxy module; Be used for matching result, obtain the atomic service of said coupling according to said atomic service, and according to the request of said composite services; The atomic service of said coupling is sent to the service execution engine, carries out the atomic service of said coupling for the service execution engine;
The service monitoring module, whether the QoS that is used to monitor composite services satisfies the QoS constraints of said composite services; When the QoS that detects said composite services does not satisfy the QoS constraints of said composite services, then send the adjustment request to service adjustment module, ask said service adjustment module that the atomic service in the composite services is adjusted;
Service adjustment module; Be used for after receiving the adjustment request that said service monitoring module is sent; Carry out the dynamic adjustment algorithm of service QoS the atomic service in the said composite services is adjusted, so that the QoS of adjusted said composite services satisfies the QoS constraints of said composite services.
2. the service bus of support composite services QoS dynamic optimization according to claim 1 is characterized in that,
Said service monitoring module; Whether the QoS that is used to detect the atomic service of said composite services has change; When the QoS of the atomic service that detects said composite services has change; Whether the QoS that further detects current composite services can satisfy the QoS constraints of said composite services, when the QoS that detects said current composite services does not satisfy the QoS constraints of said composite services, then sends the adjustment request to said service adjustment module.
3. the service bus of support composite services QoS dynamic optimization according to claim 1 is characterized in that,
Said service adjustment module is used to carry out the dynamic adjustment algorithm of preset service QoS, unenforced atomic service in the said composite services is adjusted, so that the QoS of adjusted said composite services satisfies the QoS constraints of said composite services.
4. the service bus of support composite services QoS dynamic optimization according to claim 1 is characterized in that, also comprises:
The composite services scheduler module is used to receive the request of said composite services, and carries out the dynamic dispatching algorithm of services request, said composite services is dispatched on the minimum composite services execution engine of load carries out.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101997779A (en) * | 2010-11-22 | 2011-03-30 | 华为技术有限公司 | Method and device for controlling service quality |
| CN102594851A (en) * | 2011-01-07 | 2012-07-18 | 中国科学院遥感应用研究所 | Method for dynamically building marine application service chain |
| CN102201995B (en) * | 2011-06-03 | 2013-12-04 | 北京邮电大学 | Combination service method for realizing network load optimization |
| CN103001892B (en) * | 2012-12-12 | 2015-08-19 | 中国联合网络通信集团有限公司 | Based on network resource allocation method and the system of cloud computing |
| CN103888495A (en) * | 2012-12-20 | 2014-06-25 | ***通信集团辽宁有限公司 | Execution method and system for combination service |
| CN103974101A (en) * | 2014-06-03 | 2014-08-06 | 王军明 | Video-related task routing scheduling method |
| CN108681789B (en) * | 2018-05-09 | 2021-10-08 | 浙江财经大学 | Cloud manufacturing service optimization method |
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| CN1764183A (en) * | 2005-11-03 | 2006-04-26 | 西安交通大学 | QoS driven computer system for providing combined Web service based on computer network |
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