CN101697530A - Service management system based on real-time dynamic service quality - Google Patents
Service management system based on real-time dynamic service quality Download PDFInfo
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Abstract
The invention relates to a service management system based on real-time dynamic service quality in the technical field of Internet, which comprises a plurality of service quality measurement modules, a service quality feedback module and a service registration module, wherein the service quality feedback module is connected with the service quality measurement modules for transmitting real-time dynamic service quality information, the service quality measurement modules are connected with the service registration module for transmitting service information to be selected based on service quality searching, and the service quality measurement modules are interconnected for transmitting service searching request information; the invention supports service searching based on dynamic service quality restriction, enables a service consumer to accurately select a service which most conforms to the requirement from a plurality of services to be selected, and also enhances the accuracy of service searching, thereby enhancing the reliability and the maintainability of an application system based on service calculation.
Description
Technical field
What the present invention relates to is a kind of system of Internet technical field, specifically is a kind of service management system based on real-time dynamic quality of service.
Background technology
Now, service compute has become the direction that develops rapidly in Distributed Calculation and the field of information system, development and maturation along with network service (Web Service), (Service-orientedArchitecture, form SOA) has obtained promotion and application widely to service compute with Service-Oriented Architecture Based.SOA reuses service logic and the data model that has various isomeries now by the mode that employing is independent of bottom layer realization, all reduce to construction cost, resource and the time overhead of distributed system minimum, thereby reduced risk, can make system possess good agility, can satisfy the demand of system business change in a short time.Therefore, service compute is irreversible trend, and it is imperative that it is promoted to field widely.
In the distributed system based on service compute, great variation has all taken place in the develop and field model of system, the discovery of service and the groundwork that is combined into for system development.The developer of system is always under internet environment, find satisfactory service as much as possible, and realize the complicated service flow process by combination, and this combination is not as based on the copy that goes the service of obtaining in the exploitation of member, dispose and move in this locality then, but the service of finding on network is directly brought in the system.Therefore, for the application based on service compute, its quality depends on the service that constitutes them fully.Because under internet environment, the quantity of service increases by geometric progression, and in the very different service of quantity vastness and quality, how to guarantee always to constitute the problem that must solve with regard to becoming by high quality services based on the application of service compute.
Service quality (Quality of Service QoS) comprises two parts, i.e. static attribute and dynamic attribute, and for example Fu Wu price and supplier's information etc. belong to the former, and the performance of service, reliability, fail safe etc. belong to the latter.The dynamic attribute of service has constituted the dynamic quality of service of service, and its real-time status has great importance for the user of service, because it has reflected the current available virtual condition of service.Therefore, if the service registry module can be supported the service search based on the constraint of dynamic quality of service attribute, just can dynamically serve error detector and wrong the reparation based on the application system of service compute so.
But, existing service registry module, the service registry module that jUDDI that for example increases income and companies such as IBM, Microsoft provide all is based on functional searching, and promptly carries out service search according to the functional constraint of service, does not then support for the service search based on qos constraint.This just makes user of service when carrying out service search, during according to the selecting of service quality, lacks the foundation of real-time objective in the identical service of function, can only rely on experience or test to realize, and the obvious not accurate enough and science of this selection.
Find through retrieval prior art, Chinese patent literature CN1968322 has put down in writing a kind of " network service discovery and integration proxy system ", this technology can be carried out service search at the metric of service quality aspect, but the prerequisite of this method is the ability that the network service must have self-description service quality.Obviously, the descriptive language that this method is wanted the extended network service on the one hand also can't carry out service search according to the real-time status of dynamic quality of service on the other hand.
Some researcher is devoted to the research based on the service discovery mechanisms of real-time dynamic quality of service constraint.For example, Makripoulias Y., Makris C., Panagis Y., Sakkopoulos E., Adamopoulou P., Tsakalidis A. is at Web Service discovery based on Quality of Service (quality-of-service based network service discovery), (The IEEE International Conference on Computer Systems andApplications 2006, IEEE Computer Society, March 8,2006, mention a pilot system in pp.196-199), it mainly uses the QoS that the ISP promises to undertake and the feedback information of service consumer to calculate QoS, simultaneously with UDDI (Universal Description, Discovery, and Integration, the unified description, discovery and integrated) form and the transparent integration of existing UDDI of wrapper, thereby on the basis of the service search function that does not influence traditional UDDI and provided, provide support to the QoS search.
Find Anup Kumar in addition by retrieval, Fl-Geniedy A., Sanjuli Agarwal is at A generalizedframework for providing QoS based registry in service oriented architecture, (being used for providing the general framework of the quality-of-service based registration center of Service-Oriented Architecture Based) (Proceeding of SCC 2005Conference (SCC 2005), IEEE Computer Society, 11-15 July 2005, pp.295-301vol.1.) proposed one and overlapped the framework that strengthens current UDDI standard, this framework need not existing UDDI standard is made any change but by providing a middleware that is used for storing the QoS data to be implemented in the support of service discovery to QoS, makes it can search out the service of meeting consumers' demand according to the qos parameter of user's appointment.
Xu Ziqiang, Martin Patrick, Powley Wendy, Zulkernine Farhana is at Reputation-Enhanced QoS-based Web Services Discovery (the improved quality-of-service based network service discovery of prestige), (The IEEE International Conference on Web Services (ICWS 2007), IEEE Computer Society, 9-13 July 2007, pp.249-256) then realized a service prestige enhanced service discovery mechanism based on QoS in, the UDDI service registry module (Service Registry) that wherein comprises an expansion is used to issue the information on services that contains QoS, one is come the service prestige computer center of calculation services prestige and one to realize service discovery based on service prestige according to the user to the feedback of service performance, the agency who estimates and select.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of service management system based on real-time dynamic quality of service is provided, can support service search based on the dynamic quality of service constraint, make service consumer can in numerous alternative services, accurately choose the service that suits the requirements most, to improve the accuracy rate of service search simultaneously, thereby improve reliability and maintainability based on the application system of service compute.
The present invention is achieved by the following technical solutions, the present invention includes: several service quality measurement module (QualityMetric Center, QMC), quality of service feedback module and service Registering modules, wherein: the quality of service feedback module is connected with service quality measurement module to transmit real-time dynamic quality of service information, the information on services to be selected that service quality measurement module is connected with the service registry module and searches based on service quality with transmission interconnects between several service quality measurement module with transmission service search solicited message.
Described real-time dynamic quality of service information is meant the service quality attribute value with the service operation state variation.
The described information on services of searching based on service quality to be selected is meant and meets the set of service that is included in the relevant search criterion to the dynamic quality of service attribute in the quality-of-service based service search solicited message.
Described service search solicited message is meant the search criterion that proposes at quality of service attribute.
Described service quality measurement module comprises: quality of service measures master pattern unit, communicator, quality of service feedback storage pond, service quality index tree and quality of service data manager, wherein: communicator is connected with other service quality measurement module with transmission service search solicited message, the quality of service data manager respectively with quality of service feedback storage pond, service quality index tree and communicator are connected to transmit constraints information respectively, upgrade index tree information and collaborative process service search solicited message, the service quality query processor is connected with the quality of service data manager with the constraints information after the transmission parsing.
Described service registry module is meant can the storage server description document, and the service registry module of the standard that can search at the service description file content.
Described constraints information is meant the set of the expression formula that the constraints of each dynamic quality of service attribute constitutes.
Described renewal index tree information is meant: by the lastest imformation of service quality index tree that dynamic real-time quality of service information hash is obtained.
Described collaborative process service search solicited message comprises: service search solicited message, forward node address and receiving node address.
Described quality of service feedback module comprises: AOP processing unit, proxy mode processing unit and network bottom layer data processing unit, wherein: AOP processing unit, proxy mode processing unit and network bottom layer data processing unit are connected with service quality measurement module respectively and transmit real-time dynamic quality of service information.
Meaning of the present invention is to fill up the service registry module can be obtained a large amount of relevant dynamic quality of service under internet environment at the service search based on the dynamic quality of service constraint feedback information, the service search ability that retrains based on dynamic quality of service is provided to the user, thereby improve the accuracy of service discovery, make service consumer can in the identical service of a large amount of functions, accurately select to meet most own in the service that requires aspect the quality.
The optimization method of Service Management of the present invention and the optimization method of service-seeking all are to realize based on the distributed quality of service metric module of real-time dynamic quality of service, service registry module with on the basis of the quality of service feedback module of this center feedback information.The present invention has important use for the application system based on service compute and is worth, and these application systems can realize dynamically wrong the discovery and wrong the replacement by the optimization method among the present invention, thereby improve its reliability and maintainability.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the service quality measurement module structural representation.
Fig. 3 is an embodiment interception mode schematic diagram.
Fig. 4 is the interception mode schematic diagram of embodiment based on proxy mode.
Fig. 5 is an embodiment network bottom layer packet interception mode schematic diagram.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As depicted in figs. 1 and 2, present embodiment comprises: several service quality measurement module (Quality Metric Center, the quality metric center), quality of service feedback module and service Registering modules, wherein: the quality of service feedback module is connected with service quality measurement module to transmit real-time dynamic quality of service information, the information on services to be selected that service quality measurement module is connected with the service registry module and searches based on service quality with transmission interconnects between several service quality measurement module with transmission service search solicited message.
Described real-time dynamic quality of service information is meant the service quality attribute value with the service operation state variation;
The described information on services of searching based on service quality to be selected is meant and meets the set of service that is included in the relevant search criterion to the dynamic quality of service attribute in the quality-of-service based service search solicited message;
Described service search solicited message is meant the search criterion that proposes at quality of service attribute.
Described service quality measurement module comprises: quality of service measures master pattern unit, communicator, quality of service feedback storage pond, service quality index tree and quality of service data manager, wherein: communicator is connected with other service quality measurement module with transmission service search solicited message, the quality of service data manager respectively with quality of service feedback storage pond, service quality index tree and communicator are connected to transmit constraints information respectively, upgrade index tree information and collaborative process service search solicited message, the service quality query processor is connected with the quality of service data manager with the constraints information after the transmission parsing.
Described constraints information is meant the set of the expression formula that the constraints of each dynamic quality of service attribute constitutes.
Described renewal index tree information is meant: by the lastest imformation of service quality index tree that dynamic real-time quality of service information hash is obtained.
Described collaborative process service search solicited message comprises: service search solicited message, forward node address and receiving node address.
Described quality of service measures master pattern unit realizes that by the framework that can expand, delete and revise quality of service attribute is provided the description of described quality of service attribute will be followed OWL-Q (Web Ontology Language-Quality) standard.
Described communicator realizes communication between the node by using P2P communication protocol CHORD.
Described quality of service feedback storage pond realizes that by using database storage this storage pool storage comes from service consumer or supplier's real-time dynamic quality of service feedback data, and rejects irrational information.
Described service quality index tree is set up index for the feedback data of each dynamic quality of service attribute, and this index tree is a data structure with the B+ tree, supports basic insertion, deletion, division, can also make tree need not do splitting operation continually by rotary manipulation.
Described quality of service data manager uses constraints information to search processings in quality of service feedback storage pond, use and upgrade index tree information index tree is upgraded processing, and produces collaborative process service search solicited message and pass to communicator and do and transmit processing.
Described service quality query processor to service search request resolve, obtain to be included in constraints wherein and to export the quality of service data manager to.
Described quality of service feedback module comprises: AOP processing unit, proxy mode processing unit and network bottom layer data processing unit, wherein: AOP processing unit, proxy mode processing unit and network bottom layer data processing unit are connected with service quality measurement module respectively and transmit real-time dynamic quality of service information.
Described AOP processing unit is realized by the collection and the sending function that add quality of service feedback information in the final method that sends service invocation request;
Described proxy mode processing unit is by automatically replacing the endpoint interface (endpoint interface) of network service, generates client automatically and acting server is realized according to the endpoint interface after replacing.Send all requests by this client to web services call, all will at first be transmitted to acting server, acting server is transmitted to corresponding network service with call request when finishing monitoring and feedback function, after the response that obtains the network service it is returned to client
Described network bottom layer data processing unit is by tackling the network bottom layer data, thereby the message of obtaining service invocation request and response realizes.
As shown in Figure 3, the AOP processing unit carries out intercept process in the service call framework; This mode adopts the AOP technology, and interception sends the final method of service invocation request, adds the collection and the sending function of quality of service feedback information.
As shown in Figure 4, the proxy mode processing unit carries out intercept process by the mode that the agency transmits; This mode is replaced the endpoint interface (endpoint interface) of network service automatically, generates client and proxy class (acting server) automatically according to the endpoint interface after replacing.Send all requests by this client to web services call, all will at first be transmitted to acting server, acting server is transmitted to corresponding network service with call request when finishing monitoring and feedback function, after the response that obtains the network service it is returned to client.
As shown in Figure 5, the network bottom layer data processing is carried out intercept process at network adapter; This mode will be tackled the network bottom layer data, obtain the message of service invocation request and response, thereby realize the monitoring to service.
The initial data that the quality of service feedback module is intercepted is very many, if directly feed back to the quality metric center, can greatly increase the pressure at quality metric center.Therefore, the quality of service feedback module will be carried out preliminary treatment to the initial data of intercepting, and periodically data is carried out feeding back to the quality metric center after the preliminary treatment statistics.Pretreated mode is as follows:
The 1st step: each the dynamic quality of service attribute at each service that will tackle is set up a circle queue, and this formation is used to deposit the initial data of intercepting, the initial value that its length is set for the user;
The 2nd step: periodically the data in the circle queue are asked arithmetic mean, it is fed back to the quality metric center as statistical value.This cycle can be set by the user;
The 3rd step: the tail of the queue pointer in the formation periodically moves forward, and to reject old data, guarantees the real-time of data;
The 4th step: when the tail of the queue pointer in the formation was run into the head of the queue pointer owing to periodically moving forward, queue length reduced by half; And if the head of the queue pointer is run into tail of the queue pointer-type owing to constantly inserting new data, queue length doubles; Can realize the dynamic management of queue length thus.
On the basis of the technical scheme of present embodiment, realized that corresponding software prototype verifies, and tested by experiment and assess.Experimental results show that, the quality of service feedback module that present embodiment proposes can be given the quality metric center with feedback information such as performance, reliability, availabilities effectively, and the quality metric center also can support service consumer to carry out the service search based on real-time dynamic quality of service constraint, sets up the service management system scientific and effective based on real-time dynamic quality of service thereon.
Claims (6)
1. service management system based on real-time dynamic quality of service, it is characterized in that, comprise: several service quality measurement module, quality of service feedback module and service Registering modules, wherein: the quality of service feedback module is connected with service quality measurement module to transmit real-time dynamic quality of service information, the information on services to be selected that service quality measurement module is connected with the service registry module and searches based on service quality with transmission interconnects between several service quality measurement module with transmission service search solicited message;
Described real-time dynamic quality of service information is meant the service quality attribute value with the service operation state variation;
The described information on services of searching based on service quality to be selected is meant and meets the set of service that is included in the relevant search criterion to the dynamic quality of service attribute in the quality-of-service based service search solicited message;
Described service search solicited message is meant the search criterion that proposes at quality of service attribute.
2. the service management system based on real-time dynamic quality of service according to claim 1, it is characterized in that, described service quality measurement module comprises: quality of service measures master pattern unit, communicator, quality of service feedback storage pond, service quality index tree and quality of service data manager, wherein: communicator is connected with other service quality measurement module with transmission service search solicited message, the quality of service data manager respectively with quality of service feedback storage pond, service quality index tree and communicator are connected to transmit constraints information respectively, upgrade index tree information and collaborative process service search solicited message, the service quality query processor is connected with the quality of service data manager with the constraints information after the transmission parsing.
3. the service management system based on real-time dynamic quality of service according to claim 2 is characterized in that, described constraints information is meant the set of the expression formula that the constraints of each dynamic quality of service attribute constitutes.
4. the service management system based on real-time dynamic quality of service according to claim 2 is characterized in that, described renewal index tree information is meant: by the lastest imformation of service quality index tree that dynamic real-time quality of service information hash is obtained.
5. the service management system based on real-time dynamic quality of service according to claim 1 is characterized in that, described collaborative process service search solicited message comprises: service search solicited message, forward node address and receiving node address.
6. the service management system based on real-time dynamic quality of service according to claim 1, it is characterized in that, described quality of service feedback module comprises: AOP processing unit, proxy mode processing unit and network bottom layer data processing unit, wherein: AOP processing unit, proxy mode processing unit and network bottom layer data processing unit are connected with service quality measurement module respectively and transmit real-time dynamic quality of service information.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873270A (en) * | 2010-06-26 | 2010-10-27 | 上海交通大学 | Service management system for multi-angle information feedback |
| CN104468838A (en) * | 2014-12-30 | 2015-03-25 | 桂林电子科技大学 | P2P network and Web service selection method in publish-subscribe pattern |
| CN107341044A (en) * | 2017-07-13 | 2017-11-10 | 郑州云海信息技术有限公司 | A kind of distributive data center unified monitoring framework and method |
| CN112073491A (en) * | 2020-08-31 | 2020-12-11 | 北京中交创新投资发展有限公司 | Gateway agent and service scheduling method for Internet GIS application |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968322A (en) * | 2006-09-08 | 2007-05-23 | 中山大学 | Web service finding and integration proxy system |
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2009
- 2009-11-16 CN CN 200910309802 patent/CN101697530B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873270A (en) * | 2010-06-26 | 2010-10-27 | 上海交通大学 | Service management system for multi-angle information feedback |
| CN104468838A (en) * | 2014-12-30 | 2015-03-25 | 桂林电子科技大学 | P2P network and Web service selection method in publish-subscribe pattern |
| CN104468838B (en) * | 2014-12-30 | 2017-08-11 | 桂林电子科技大学 | A kind of P2P networkings and the web service selection method of publish-subscribe model |
| CN107341044A (en) * | 2017-07-13 | 2017-11-10 | 郑州云海信息技术有限公司 | A kind of distributive data center unified monitoring framework and method |
| CN112073491A (en) * | 2020-08-31 | 2020-12-11 | 北京中交创新投资发展有限公司 | Gateway agent and service scheduling method for Internet GIS application |
| CN112073491B (en) * | 2020-08-31 | 2023-08-22 | 交信北斗科技有限公司 | Gateway proxy and service scheduling method for Internet GIS application |
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| CN101697530B (en) | 2011-07-20 |
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