CN100438472C - Photon grid middleware and its control based on optical network resource allocation on demand - Google Patents
Photon grid middleware and its control based on optical network resource allocation on demand Download PDFInfo
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Abstract
This invention discloses photon grid middleware which is based on optical network demand allocation and its resource control method. In the middleware, grid service terminal send the resource application to photon grid middleware; G4 application resource management carries on grid-oriented 's resource control and application resource scheduling; middleware packages optical network resource object, according to application resource attribute drive the network resource operation; optical network resource dispatcher uses optical resource scheduling interface to operate grid service-oriented optical resource scheduling, it realizes optical resource's inquiry and scheduling for the grid application and provides the control optical channel for top service; optical network resource supervisor carries on grid-oriented optical resource list management; optical control layer provides the establishment of the signaling mechanism, based on routing algorithm choose the suitable routing, and realize the optical access control through GUNI. This invention can realize dynamic bandwidth allocation of grid application data transmission based on the grid service's driving to optical network.
Description
Technical field
The present invention relates to a kind ofly also relate to the optical network resource control method of utilizing this photon grid middleware to realize, belong to the optical communication technique field towards grid system, based on the photon grid middleware of optical network resource distribution according to need mechanism.
Background technology
Along with the fast development of national economy, national defense construction and high-tech, growing field need solve the calculating of extensive scientific and engineering technology.In order to solve the actual demand of people to high-performance calculation, people have proposed concept of grid computing in conjunction with the development of Internet technology.
Grid is to use for reference a notion of coming from power grid, origin the earliest comes from " unit is calculated ", the predecessor of computing grid just, its target is that the high-performance computer that is distributed in the costliness of various places is organized, realize distributed sharing and work compound, improve the utilance of computational resource.The target of grid is abstract and quantizes computational resource, can finish the relevant work of calculating of " quantitatively " whenever and wherever possible by network " by norm ".By adopting grid to coordinate the computational resource and the storage resources of allotment far-end, can realize the fast processing of task.Grid not only can be realized the sharing of information resource service, and various computer software and hardware resources, data message, storage resources and equipment and instrument etc. can be got up by network organization, become the organic resource hierarchy of a cover, for grid user provides integrated service.Now, grid develops to direction widely, and might become the development model of World Wide Web (WWW) of future generation.
The management mode of popularizing and developing Internet resources of grid has proposed new requirement.Existing grid application pattern is by user applies, and the network manager that is positioned at network edge provides the communication resource by concentrated or distribution control mode for the user.When relating to density data, the user uses, during as the application of aspects such as aviation, bioengineering, high-energy physics, owing to self can't contact the control of the communication resource and can not obtain enough bandwidth.Therefore on the photocontrol aspect of the communication resource, the pattern of existing network just can not satisfy in flourish grid application demand, has caused the bottleneck of bandwidth applications.
Particularly, in the prior art, grid is mainly realized by explorer and corresponding mesh services interface the control mode of resource.The middleware of introducing in the grid is based on the computer distribution type treatment mechanism, is positioned at the application layer position of ICP/IP protocol.The resource controlling mechanism of existing grid middleware is as follows:
Step 1: grid user proposes job request by grid system;
Step 2: grid middleware authenticating identity;
Step 3: by the job management module negotiates, the service layer in the grid application node proposes service request;
Step 4: under the control of grid middleware node surveillance,,, propose the scheduling of resource request to file management, information management or data management module negotiate service according to service request;
Step 5: the registration of inquiry gridding resource, the renewal formed tabulation in back, carry out resource allocation and scheduling, obtain the position at resource place;
Step 6: the destination address that encapsulation resource tabulation provides, by existing communication access way, to by network provider to concentrate or the communication network of distributed management sends communication resource request;
Step 7: after network manager receives that the user asks, distribute the bandwidth that is determined by access way to give the user, network router or switch are carried out network and are connected control, and optical fiber is as the transmission network physical transmission medium;
Grid work is by provider's control and allocation of network resources in implementation procedure fully.Grid application itself does not possess the scheduling of network service resource and distribution capability.The effect of existing grid middleware mainly is the management to operation, data, file, information and device resource, its function is limited in application layer services, the resource service of network-oriented layer can not be provided for grid user, and this will make grid application bandwidth-hungry and the idle problem alternately of bandwidth occur.That is: big when the data volume of grid work, when load is heavy, the user in the existing grid need or set up one's own private network to the bigger bandwidth of network provider application, this needs the long cycle, often can not in time satisfy user's needs.In case and bandwidth is met, grid work but may no longer need so big bandwidth, and this will cause the idle and waste of resource.
On the other hand, along with the development of Internet business, the variation of communication network institute bearer service form has caused the expansion of bandwidth demand.The communications field of developing into of Fibre Optical Communication Technology provides the maturation of huge available bandwidth resources, particularly wavelength-division multiplex technique (Wavelength DivisionMultiplexing:WDM) technology to provide new bandwidth resources for the user.Existing ASON adopts general multiple protocols label exchange (GMPLS) as the control signaling protocol, connects and the controlling links function to realize dynamic optical channel, and this provides technical foundation for the dynamic assignment that realizes bandwidth resources.
Summary of the invention
It is a kind of based on optical network resource demand assigned photon grid middleware that first purpose of the present invention is to provide.
Another object of the present invention provides a kind of optical network resource control method.The photon grid middleware that this method drives by the structure grid, and the technological means that adopts Globus Toolkit 4, light resources object encapsulation to combine are realized the control of grid application to Internet resources
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of based on optical network resource demand assigned photon grid middleware, it is characterized in that comprising:
The platform that is connected with grid clients is used to obtain application resource information;
The grid network service interface is used to connect the grid network management system;
The light resources encapsulated object is used for carrying out interoperability and information exchange with described platform;
The optical network resource scheduler, query manipulation is carried out in tabulation to light resources, whether has the light resources that satisfies condition to search;
The optical network resource manager is carried out the operational processes of described light resources tabulation and for the grid network service provision information, is used to provide the optical network management towards grid user;
The light resources tabulation is used to preserve light resources information; With
Control interface, the connection light resources is tabulated and is connected with optical control layer.
Wherein,
The described platform that is connected with grid clients also is used for the safety certification management.
The application resource information that the described platform that is connected with grid clients obtains includes but not limited to discovery, registration, renewal, scheduling and the use information of resource.
Described optical network resource scheduler comprises comparison module, is used for the tabulation of comparison reserved bandwidth value and light resources, and sends comparative result to optical control layer, as the input parameter of optical channel driving and RSVP.
A kind of optical network resource control method of utilizing above-mentioned photon grid middleware to realize, described photon grid middleware is characterized in that may further comprise the steps between optical control layer and application layer:
1) the grid clients application program is served to described photon grid middleware application;
2) platform that is connected with grid clients in the described photon grid middleware is realized the application resource discovery, and application resource information is sent to the optical network resource scheduler of described photon grid middleware;
3) the optical network resource scheduler in the described photon grid middleware utilizes step 2) the application resource information that provides, calculate needed bandwidth, and whether the tabulation of inquiry light resources exist available optical network resource, propose optical channel and set up request;
4) the optical network resource manager in the described photon grid middleware is carried out light resources tabulation operation, and the management that the mesh services interface is given grid network service execution Internet resources is set;
5) solicited message that sends according to optical network resource scheduler in the described photon grid middleware of optical control layer is that grid application is set up optical channel according to the transmission mechanism of optical control layer;
6) notify each grid node to carry out the light resources list update to keep the consistency of Internet resources in each node of grid.
Wherein,
Described optical network resource scheduler is reserved bandwidth value and light resources tabulation relatively, and sends comparative result to optical control layer, as the input parameter of optical channel driving and RSVP.
In the described step 3), described optical network resource manager utilizes step 2 by the optical network resource object and the attribute thereof of encapsulation) bandwidth that needs of the application resource information calculations that provides.
The abstract topology information of preserving in the solicited message that described optical control layer sends according to the optical network resource scheduler, the light resources tabulation, optical channel characteristic, transmission controlling mechanism are set up optical channel by the demand of grid application.
The optical network resource manager of described photon grid middleware is carried out the management of optical network resource, the tabulation of control light resources.
The present invention has the following advantages and effect: by setting up the optical channel object, realized user oriented controllable light passage and allocated bandwidth; Realize optimized dispatching and the Based Intelligent Control of grid application layer more neatly to optical network resource; Increase the communication resource control ability of photon grid middleware, solved bandwidth-hungry and the idle problem of bandwidth that conventional mesh occurs, make middleware Technology in the grid network service, play the effect of forming a connecting link.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the position view of photon grid middleware provided by the present invention in the overall optical network.
Fig. 2 is the composition structure chart of photon grid middleware shown in Figure 1.
Fig. 3 utilizes this above-mentioned middleware to realize the flow chart of optical network resource scheduling.
Fig. 4 utilizes this middleware to realize the flow chart of optical network resource management.
Fig. 5 utilizes this middleware to transmit the flow chart of big file.
Embodiment
From the definition of grid, grid should be able to be realized the control of all Internet resources and call.But existing technology can not directly satisfy this requirement.At this defective, a distinguishing feature of the present invention just is to realize management and the control of grid to Internet resources by the photon grid middleware in the optical-fiber network.This photon grid middleware adopts the grid application service mode, for grid application provides optical network resource management and scheduling, according to the attribute of application resource, carries out the distribution and the scheduling of optical network resource.Here the optical network resource of indication is all called objects relevant with optical network communication, comprises optical channel, bandwidth, wavelength, label, port, optical fiber, SDH passage, network topology, light burst.
Below, at first this photon grid middleware is launched detailed explanation.
Fig. 1 has shown the position of photon grid middleware provided by the present invention in the overall optical network.In optical-fiber network, the bottom is optical transmission and the switching network that optical fiber link and network node constitute, its threaded file server, mainframe computer, data and all application resources.The exchange of photosphere resource information and the interoperability of optical transmission and switching network are carried out by optical control layer, and the signaling mechanism of setting up optical channel is provided, and select suitable route according to routing algorithm, and realize the control of physics optical-fiber network by GUNI.The abstract topology information of preserving in the solicited message that optical control layer sends according to the optical network resource scheduler, the light resources tabulation, optical channel characteristic, transmission controlling mechanism are set up optical channel by the demand of grid application.Applications client realizes various demo functions, by mesh services access network is set.The photon grid middleware is formed structure and is seen Fig. 2 as core of the present invention.
Fig. 2 is the composition structure chart of photon grid middleware.This photon grid middleware mainly is made up of with relevant interface light resources tabulation, grid network service, optical network resource manager, optical network resource scheduler, light resources encapsulated object towards grid.Wherein, the light resources encapsulated object has open attribute interface, can realize and interoperability and the information exchange of GT4, carries out operations such as information management, file management, job management.The optical network resource manager is carried out towards the light resources tabulation of grid by application programming interfaces RM-API and is operated, and connects the grid network service by the mesh services interface, is used to carry out with authenticating, charge, monitor relevant grid driving the management of optical-fiber network.In addition, the optical network resource scheduler utilizes light resources scheduling application interface RS-API to be connected with the optical network resource manager, to carry out optical network resource scheduling, realize control, for top service provides controllable optical channel to optical network resource towards mesh services.
The light resources tabulation is arranged on the mesh services node, is used to preserve light resources information.Optical network resource and attribute thereof that list content provides for optical transmission and switching network.
The optical network resource manager is carried out the operational processes of tabulation, comprise insertion, deletion, renewal, registration, discovery, the abstract processing of resource information, the optical network resource manager provides network state and traffic characteristic information for the grid network service simultaneously, is used to provide the optical network management towards grid user.
The optical network resource scheduler can carry out query manipulation to the light resources tabulation, whether has the light resources that satisfies condition to search.The mutual of information carried out in this scheduler and GT4 resource management, can obtain the attribute of application resource, thus according to the state of Query Result and application resource, proposes optical channel and sets up application.The scheduling of considering light resources is to be driven by the grid application resource service, and the optical network resource scheduler can provide the calculating of reserved bandwidth value, and its concrete step is that persons skilled in the art are known, does not repeat them here.
The calculating of above-mentioned reserved bandwidth value is carried out according to the attribute of grid application resource.The optical network resource scheduler is reserved bandwidth value and light resources tabulation relatively, and sends optical control layer to this result, as the input parameter of optical channel driving and RSVP.
This photon grid middleware adopts dynamic allocated bandwidth mechanism, and the size of distributing bandwidth according to the grid application resource require given, this middleware need initiatively to propose the capacity of bandwidth, this point to be different from existing optical-fiber network intelligence by the passive mode that provides of network provider to optical-fiber network.In order to match with this photon grid middleware, with reference to shown in Figure 2, the optical-fiber network optical control layer adopts Dynamic Bandwidth Allocation mechanism, controls to carry out final RSVP and optical channel as the control signaling with GMPLS.
A distinguishing feature of this photon grid middleware just is to adopt the GT4 (Globus Toolkit 4.0) of Globus tissue issue as the basic platform of application resource management with scheduling.It provides GRAM (Grid Resource Allocation and Management) function to realize the application resource management in conjunction with GT4 itself, GRAM can realize application-oriented resource based on Web Service, discovery, registration and renewal as computing node, file server, shared storage, data message, and the information of collecting application resource, relate to position and listed files, the capacity of memory and the position of data message etc. of the position of computing node and disposal ability, file server; The information that the scheduling of middleware then provides in conjunction with GT4 is inquired about and is analyzed, according to inquiring the application resource attribute, comprise position, disposal ability, file size or intensity data, the basis that provides the size of the number of optical channel and bandwidth to calculate, and according to the required optical network resource of property calculation of the related application resource of the needs of service request, in request and the distribution of carrying out light resources.
For instance, 4 GridFTP Server link together by the optical wavelength passage, have control channel simultaneously, management process: GT4 finds 4 server by control channel, then with top fileinfo, comprise position, size, file name, file type, register, form listed files and inform middleware, if increase or deletion Server then carry out renewal process, we can say that management function relates to discovery, registration, upgrades, scheduling then is to drive to use.And how many optical wavelength this locality has, the bar number in operable path, can distribute these light resources of how many labels then must carry out concrete operations by the photosphere control plane, by the GUNI interface attribute information of related resource is offered tabulation in the middleware, carry out the management of light resources, the purpose of management is an acquisition of information, for scheduling operation provides available resource information.The scheduling process of light resources is, in middleware according to the attribute of certain big file, calculate the required optical channel number of this document and need bandwidth, the tabulation of inquiry light resources, and then ask and drive the photocontrol plane by the GUNI transmission and carry out actual light path foundation, resource allocation and the scheduling that label distribution is concrete.
From realizing that above-mentioned middleware can be to be based upon one group of combination of software on the optical-fiber network on the angle.Middleware adopts distribution mode to be deployed in grid node, and seating surface is to the mesh services of Web Service.
This photon grid middleware is realized by two processes with management the scheduling of resource, a scheduling and the management that process is an application resource, and another is on the basis that application resource is found, drives the distribution and the scheduling of optical network resource.
Fig. 3 is the flow chart that the photon grid middleware is realized the optical network resource scheduling.The concrete steps of carrying out the optical network resource scheduling by middleware are as follows:
Step 1: grid application is served to the application of photon grid middleware;
The grid application here mainly comprises towards grid and has all application of information and date exchange.The application resource of being mentioned does not comprise optical network resource, refers to that all relate to file, data, information, software program and hardware device and module.
Step 2: the GT4 safety management module provides authentication service in the middleware;
Step 3:GT4 job management module and GRAM consult, and realize the application resource management;
The application resource management mainly comprises discovery, registration, renewal, scheduling, the use of resource.
Step 4: by the optical network resource object and the attribute thereof of encapsulation, the application resource information that the optical network resource manager utilizes step 3 to provide is calculated the big or small B that needs bandwidth, and whether inquiry exists available network resources;
Above-mentioned step 3, the 4th, execution is managed and is called at the grid application resource, is carried out by grid control channel by GT4, and the attribute of preserving application resource is to be used for dispatching use.
Step 5: carry out the management of Internet resources, the tabulation of control light resources by the optical network resource manager of middleware;
Step 6: if there are the Internet resources that satisfy the demands; Then receive resource request and require bandwidth, send connection request to optical control layer by explorer by grid user network interface (GUNI) then by the optical network resource scheduler; Otherwise re-execute step 4;
Above-mentioned step 5,6 execution are to realize on step 4 is available basis through the state of consulting the gained application resource.
Step 7: optical control layer is reserved according to request and is distributed required bandwidth, is established to the optical channel of destination for grid application;
The optical channel is here set up according to the grid application demand, in the process that grid work is handled, can provide two-way data channel.
Step 8: set up successfully if connect, then notify each grid node to carry out the Resources list and upgrade, keep the consistency of Internet resources in each node of grid by GUNI.
Wherein, the flow process of the optical network resource manager execution network resource management in the step 5 specifically comprises following step as shown in Figure 4:
Step 51: optical control layer monitoring network state comprises the variation of node and Link State;
Step 52: if topology changes, optical control layer is by GUNI notice optical network resource manager; Otherwise return step 1, continue the monitoring network state;
Step 53: the optical network resource manager is carried out registration, the renewal of optical network resource and is revised the light resources tabulation;
Step 54: the light resources tabulation offers the grid network management system simultaneously, is used for grid supervision, charging and configuration management;
Step 55: light resources tabulation provides optical network resource information simultaneously, is packaged into available objects by scheduler, provide open interface to GT4 as network service resource.
Below, introduce among the present invention, utilize middleware to realize the basic procedure of big file transfer.The big file transfer here is the characteristic for the photon grid middleware that drives to grid at the application facet test surfaces, introduce the transmission of chunk data in the violent data transmission applications (Intensive Data Application), with checking by the photon grid middleware realize dynamic, fast, the dispatching of high bandwidth optical channel resource.
The big file transfer step of implementing by middleware of the present invention is as follows:
Step 1: the authentication of mesh services connecting system proposes file transfer requests;
The management of step 2:GT4 execute file: inquiry file catalogue, select target file, extraction document attribute send to the light resources scheduler;
Step 3: according to file attribute, calculating needs bandwidth B;
The file attribute here comprises file size, transmission means, destination address.GT4 provides a plurality of file transfer modes according to user's requirement.
Step 4: the local available light the Resources list of middleware " optical network resource scheduler " inquiry;
In the step 4, the destination address attribute that the bandwidth that can calculate according to step 3 and step 2 provide is introduced the light resources object of one or more encapsulation, and the local tabulation of inquiry is adopted parallel and the multichannel controlling mechanism is that mesh services is set up the available light passage.
Step 5: if there is the light resources satisfy bandwidth B,, otherwise return step 2, reselect other available targets file if exist then hold step 6;
Step 6: the destination address required according to file destination, set up optical channel;
Step 7: carry out the Resources list and upgrade.
In above-mentioned steps, utilize GT4 to come the execute file management, and introduce the file transfer mechanism of GT4 towards grid.Detailed introduction about GT4 and file transfer mechanism thereof, (concrete network address is related content that can organize (http://www.globus.org/) to issue in its website with reference to Globus: http://www.globus.org/toolkit/docs/4.0/), just do not describe in detail at this.
Have been described in detail based on optical network resource demand assigned photon grid middleware and resource control method thereof of the present invention above, but specific implementation form of the present invention is not limited thereto.For the those skilled in the art in present technique field, the various conspicuous change of under the situation of spirit that does not deviate from the method for the invention and claim scope it being carried out is all within protection scope of the present invention.
Claims (9)
1. one kind based on optical network resource demand assigned photon grid middleware, it is characterized in that comprising:
The platform that is connected with grid clients is used to obtain application resource information;
The grid network service interface is used to connect the grid network management system;
The light resources encapsulated object is used for carrying out interoperability and information exchange with described platform;
The optical network resource scheduler, query manipulation is carried out in tabulation to light resources, whether has the light resources that satisfies condition to search;
The optical network resource manager is carried out the operational processes of described light resources tabulation and for the grid network service provision information, is used to provide the optical network management towards grid user;
The light resources tabulation is used to preserve light resources information; With
Control interface, the connection light resources is tabulated and is connected with optical control layer.
2. photon grid middleware as claimed in claim 1 is characterized in that:
The described platform that is connected with grid clients also is used for the safety certification management.
3. photon grid middleware as claimed in claim 1 is characterized in that:
The application resource information that the described platform that is connected with grid clients obtains comprises discovery, registration, renewal, scheduling and the use information of resource.
4. photon grid middleware as claimed in claim 1 is characterized in that:
Described optical network resource scheduler comprises comparison module, is used for the tabulation of comparison reserved bandwidth value and light resources, and sends comparative result to optical control layer, as the input parameter of optical channel driving and RSVP.
5. optical network resource control method of utilizing photon grid middleware as claimed in claim 1 to realize, described photon grid middleware is characterized in that may further comprise the steps between optical control layer and application layer:
1) the grid clients application program is served to described photon grid middleware application;
2) platform that is connected with grid clients in the described photon grid middleware is realized the application resource discovery, and application resource information is sent to the optical network resource scheduler of described photon grid middleware;
3) the optical network resource scheduler in the described photon grid middleware utilizes step 2) the application resource information that provides, calculate needed bandwidth, and whether the tabulation of inquiry light resources exist available optical network resource, propose optical channel and set up request;
4) the optical network resource manager in the described photon grid middleware is carried out light resources tabulation operation, and the management that the mesh services interface is given grid network service execution Internet resources is set;
5) solicited message that sends according to optical network resource scheduler in the described photon grid middleware of optical control layer is that grid application is set up optical channel according to the transmission mechanism of optical control layer;
6) notify each grid node to carry out the light resources list update to keep the consistency of Internet resources in each node of grid.
6. optical network resource control method as claimed in claim 5 is characterized in that:
Described optical network resource scheduler is reserved bandwidth value and light resources tabulation relatively, and sends comparative result to optical control layer, as the input parameter of optical channel driving and RSVP.
7. optical network resource control method as claimed in claim 5 is characterized in that:
In the described step 3), described optical network resource manager utilizes step 2 by the optical network resource object and the attribute thereof of encapsulation) bandwidth that needs of the application resource information calculations that provides.
8. optical network resource control method as claimed in claim 5 is characterized in that:
The abstract topology information of preserving in the solicited message that described optical control layer sends according to the optical network resource scheduler, the light resources tabulation, optical channel characteristic, transmission controlling mechanism are set up optical channel by the demand of grid application.
9. optical network resource control method as claimed in claim 5 is characterized in that:
The optical network resource manager of described photon grid middleware is carried out the management of optical network resource, the tabulation of control light resources.
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| WO2004039000A1 (en) * | 2002-10-22 | 2004-05-06 | Huawei Technologies Co., Ltd. | A location service full mesh networking system and method therefor |
| JP2005056201A (en) * | 2003-08-05 | 2005-03-03 | Hitachi Software Eng Co Ltd | Heterogeneous hybrid computer connecting system and processing assignment method and charging method in same system |
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