CN105516343A - Network dynamic self-organized file-sharing system and method for implementing same - Google Patents
Network dynamic self-organized file-sharing system and method for implementing same Download PDFInfo
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- CN105516343A CN105516343A CN201511026470.6A CN201511026470A CN105516343A CN 105516343 A CN105516343 A CN 105516343A CN 201511026470 A CN201511026470 A CN 201511026470A CN 105516343 A CN105516343 A CN 105516343A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
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- Computer Networks & Wireless Communication (AREA)
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- Information Transfer Between Computers (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention discloses a network dynamic self-organized file-sharing system and a method for implementing the same in order to solve a problem that transmission speed, construction cost, and resource copyright are difficult to cater to in the file-sharing technical field. The file-sharing system comprises a global cluster server, one or more clusters, and one or more clients. Each cluster comprises a cluster head, one or more file servers, and a load balancing proxy. The method comprises operational processes such as network construction and maintenance, file uploading, file downloading and the like. The file-sharing system achieves dynamic joining and quitting of cluster nodes and clusters, parallel file distribution of the multiple file servers, and access of the clients to the clusters so as to have advantages of survivability, expandability, reliability, fast data distribution speed, and controllable file sources.
Description
Technical field
The present invention relates to the shared system network architecture model in File Sharing Technique field, system node management and file distributing flow technologies, be specially a kind of shared file system and implementation method of network dynamic self-organization.
Background technology
File-sharing is a widely used integrated technology, and at present, this technical field of research has two large technical systems to be widely used, and is the technology of sharing based on P2P and multicenter many copies parallel transmission technology respectively.Wherein be user be download person based on P2P technology of sharing advantage be also uploader, this transmitted in both directions breaches the restriction of server bandwidth, and share speed high, bandwidth requirement is low.Shortcoming mainly contains 2 points, and one is that downloading contents fail safe is difficult to be protected, and two is that resource copyright is uncontrollable, is easy to cause infringement.Another multicenter many copies parallel transmission technology advantage is that system has economy and technological controllability, and system safety is ensured, shortcoming is that system Construction cost is high.
Summary of the invention
The problem to be solved in the present invention is: in order to solve the shortcoming that P2P and multicenter many copies two kinds of transmission technologys exist separately, the comprehensive multicenter of the present invention many copies parallel transmission method and the handling process shared based on P2P, provide a kind of shared file system and implementation method of network dynamic self-organization, shared system comprises extendible file server cluster of domain, user and cluster of domain have fixing belonging relation, cluster of domain dynamic construction, multiple file server parallel distribution shared file in cluster of domain.In the high dispense rate low bandwidth needs of guarantee simultaneously, construction cost can control the shared system built according to inventive method, and resource copyright can control.
The technical solution used in the present invention is:
A shared file system for network dynamic self-organization, is characterized in that comprising:
The overall situation bunch server, for the information of management cluster bunch, synchronous documents between different Clusters, passs on instruction between client and Clusters;
One or more Clusters, for management document, receives client upload file, to client distribution of document; With
One or more client, for affiliated Clusters upload file and download file.
Wherein, described Clusters comprises:
Cluster head, for managing the inner all nodal informations of affiliated Clusters, passes on the overall situation bunch service order to other nodes;
Load balancing is acted on behalf of, and for the load of statistical cluster cluster node, optimum selecting performs distribution of document task node;
One or more file server, for receiving client upload file, to client distribution of document and Storage sharing file.
Wherein, cluster head, load balancing are acted on behalf of and are used UDP connected mode to be connected to each other between file server; UDP connected mode is used to be connected to each other between multiple file server.
A file-sharing implementation method for network dynamic self-organization, is characterized in that comprising the following steps:
(1), after Clusters starts, registration request is initiated to the overall situation bunch server; Cluster head in the overall situation bunch server settings Clusters, load balancing agency and file server, and the information of record set group variety; File server file consistence in cluster head set of organizations group variety, the load of the cluster head in load balancing proxy polling Clusters, load balancing agency and file server; When cluster head, file server, load balancing are acted on behalf of and are initiatively exited or surprisingly delay machine, cluster head and the overall situation bunch server update Clusters information;
(2) if client upload file, then step (3) is proceeded to; If client downloads file, then proceed to step (6);
(3) client initiates upload file request to the overall situation bunch server, and belonging to the overall situation bunch server instruction client, the cluster head of Clusters receives and uploads task;
(4) polling result acted on behalf of according to load balancing of cluster head, the file server selecting load light receives the file of client upload; After the file server reception upload file that this load is light, in cluster head instruction Clusters, alternative document server completes file synchronization, and upload file is sent to the overall situation bunch server;
(5) upload file is sent to other Clusters by the overall situation bunch server, completes file synchronization between Clusters, terminates;
(6) client initiates download file request to the overall situation bunch server, and belonging to the overall situation bunch server instruction client, cluster head receives downloading task;
(7) polling result acted on behalf of according to load balancing of cluster head, selects the light one or more file servers of load to carry out file distributing; If multiple file server execute file distributed tasks, cluster head is multiple file fragment according to performing the file server quantity of distributed tasks by file division, after client receives multiple file fragment, carries out file assembling and obtains whole file.
Wherein, between step (5) Clusters, file synchronization concrete steps are:
(501) overall situation bunch server indicates the cluster head of other Clusters to receive file synchronization task;
(502) polling result acted on behalf of according to the load balancing of this Clusters of the respective cluster head of other Clusters, the file server selecting this Clusters internal burden light receives the file of the overall situation bunch server sync, after the file server reception synchronous documents that this load is light, the cluster head of this Clusters indicates alternative document server in this Clusters to complete file synchronization.
Wherein, when file server and load balancing agency initiatively exit, send to cluster head the request of exiting, cluster head, load balancing agency and the overall situation bunch server update bunch information, elect new load balancing to act on behalf of; When cluster head node exits, send to a overall situation bunch server request of exiting, the overall situation bunch server update bunch information, elects new cluster head.
Wherein, file server and cluster head delay machine time, load balancing agency can not obtain its load, the overall situation bunch Server election new cluster head, transaction file server and cluster head information; When load balancing is acted on behalf of and delayed machine, cluster head can not report load, and the new load balancing agency of the overall situation bunch Server election, upgrades load balancing proxy information.
The invention has the beneficial effects as follows:
(1) shared system has anti-ruining and self-healing property.Clusters provided by the invention comprises cluster head, file server, load balancing agency, and wherein cluster head and load balancing agency adopt bootstrap approach to produce, and wherein file server comprises one or more.Cluster head, load balancing agency and file server are all dynamic generations, and can initiatively or surprisingly exit, add at any time, the system of guarantee has survivability and self-healing property.
(2) piracy and potential safety hazard is avoided.Cluster head provided by the invention, file server, load balancing are acted on behalf of both can add at any time and are exited, and also have controllability, therefore there is not piracy and potential safety hazard.Client provided by the invention can only files passe to affiliated Clusters, and document source is clear and definite, can stop piracy and potential safety hazard.
(3) file downloading speed is high.Method and system provided by the invention uses multifile server to the distribution of document of client parallel transmission, can realize file high-speed downloads.
Accompanying drawing explanation
Fig. 1 is the network organization illustraton of model of the embodiment of the present invention.
Fig. 2 is the operational flowchart of the embodiment of the present invention.
Embodiment
Below, the invention will be further described by reference to the accompanying drawings.For purposes of clarity, accompanying drawing and eliminate unrelated to the invention, process known to persons of ordinary skill in the art and description in illustrating.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not paying creative work, all belongs to the scope of protection of the invention.
Fig. 1 is the network organization illustraton of model of the embodiment of the present invention, it is characterized in that comprising:
The overall situation bunch server, for the information of management cluster bunch, synchronous documents between different Clusters, passs on instruction between client and Clusters.
In embodiment, the overall situation bunch server is the core in shared system.A overall situation bunch server concrete function comprises:
A) bunch information of the management overall situation, records the information of all bunches, comprises ip address, port, number of clusters amount, cluster node list information.
B) manage overall load condition, record load (cpu, mem, the network bandwidth) situation of each bunch of interior joint.
C) global profile information is managed, synchronous documents and file consistence verification between different bunches.
D) accept, forwarding client file is uploaded, download request.
E) accept, forward that cluster node is registered, exited, information updating request.
F) Dynamic Maintenance shared system structure, determines cluster head, load balancing proxy role, starts corresponding role service.
One or more Clusters, for management document, receives client upload file, to client distribution of document.Shared system comprises at least 1 Clusters.Clusters is logicality tissue, is made up of concrete entity, and Clusters comprises a cluster head, load balancing agency, one or more file server.
Cluster head, for managing the inner all nodal informations of affiliated Clusters, passes on the overall situation bunch service order to other nodes;
Cluster head is the core of Clusters, and a Clusters comprises a cluster head, and cluster head dynamically generates, by the overall situation bunch server choice set group variety in performance preferably file server hold a concurrent post.Cluster head concrete function comprises:
A) registration of bunch interior nodes is accepted.
B) bunch interior nodes (file server, load balancing are acted on behalf of) information is recorded.
C) with the overall situation bunch server interaction, file consistence check request in synchronous bunch of interior nodes information, synchronous documents, response bunch.
Bunch d) file management in, file consistence synchronization check in bunch, Clusters client upload download request belonging to process.
Bunch e) the synchronous and file-sharing of file consistence between.
Load balancing is acted on behalf of, and for the load of statistical cluster cluster node, optimum selecting performs distribution of document task node;
Load balancing agency is the node ensureing file server distribution load balancing in Clusters.Load balancing agency dynamically generate, and the file server less by load in the overall situation bunch server choice set group variety is held a concurrent post.Load balancing is acted on behalf of concrete function and is comprised:
A) IO, CPU and the internal memory load of every platform file server is added up.
B) offered load of this bunch is added up.
C) with the overall situation bunch server sync load information.
D) distributed tasks is dispatched.
One or more file server, for receiving client upload file, to client distribution of document and Storage sharing file.
File server preserves duplicate of the document, node to client distribution of document in Clusters.File server can add at any time, exit.File server concrete function comprises:
A) accept the inquiry of load balancing agency, loading condition is provided.
B) content of file fragmentation is sent to client.Receive client file title, side-play amount, length requests, iteration sends the file fragment of this length.
C) file verification is synchronous.Accept the check request of cluster head, according to filename calculation check value, as coupling then returns successfully, otherwise send synchronization request, by file synchronization to the alternative document server that cluster head is distributed.
One or more client, for affiliated Clusters upload file and download file.
Client is the application person of shared system, divides according to system actual area, and client only uploads download file from the node of affiliated Clusters.Client concrete function comprises:
A) bandwidth of client is added up.
B) with the overall situation bunch server communication, initiate to upload, download, searching request.
C) by file fragmentation, fragment request is sent to each file server.
D) burst returned from file server assembled and verify.
Fig. 2 is the operational flowchart of the embodiment of the present invention, and a kind of file-sharing implementation method of network dynamic self-organization, is characterized in that comprising the following steps:
(1) step S1: after Clusters starts, initiates registration request to the overall situation bunch server; Cluster head in the overall situation bunch server settings Clusters, load balancing agency and file server, and the information of record set group variety; File server file consistence in cluster head set of organizations group variety, the load of the cluster head in load balancing proxy polling Clusters, load balancing agency and file server; When cluster head, file server, load balancing are acted on behalf of and are initiatively exited or surprisingly delay machine, cluster head and the overall situation bunch server update Clusters information;
(2) step S2: if client upload file, then proceed to step S3 (3); If client downloads file, then proceed to step S6 (6);
(3) step S3: client initiates upload file request to the overall situation bunch server, belonging to the overall situation bunch server instruction client, the cluster head of Clusters receives and uploads task;
(4) step S4: cluster head instruction load balancing agent selection carries out task scheduling; Load balancing agency is according to node load polling result, and the file server selecting load light receives the file of client upload; After the file server reception upload file that this load is light, in cluster head instruction Clusters, alternative document server completes file synchronization, and upload file is sent to the overall situation bunch server;
(5) step S5: upload file is sent to other Clusters by the overall situation bunch server, completes file synchronization between Clusters, terminates;
(6) step S6: client initiates download file request to the overall situation bunch server, belonging to the overall situation bunch server instruction client, cluster head receives downloading task;
(7) step S7: cluster head instruction load balancing agent selection carries out task scheduling; Load balancing agency, according to node load polling result, selects the light one or more file servers of load to carry out file distributing; If multiple file server execute file distributed tasks, cluster head is multiple fragment according to performing the file server quantity of distributed tasks by file division, and instruction file server is simultaneously to the file of client distribution respective segments;
(8) step S8: after client receives multiple file fragment, carries out file assembling and obtains whole file.
Wherein, step S5 (5) is specially:
(501) overall situation bunch server indicates the cluster head of other Clusters to receive file synchronization task;
(502) the respective cluster head of other Clusters indicates the agency of the load balancing in this bunch to carry out synchronous task scheduling, load balancing agency in this bunch is according to load polling result, the file server selecting this Clusters internal burden light receives the file of the overall situation bunch server sync, after the file server reception synchronous documents that this load is light, the cluster head of this Clusters indicates alternative document server in this Clusters to complete file synchronization.
Wherein, when file server and load balancing agency initiatively exit, send to cluster head the request of exiting, cluster head, load balancing agency and the overall situation bunch server update bunch information, elect new load balancing to act on behalf of; When cluster head node initiatively exits, send to a overall situation bunch server request of exiting, the overall situation bunch server update bunch information, elects new cluster head.
Wherein, file server and cluster head surprisingly delay machine time, load balancing agency can not obtain its load, the overall situation bunch Server election new cluster head, transaction file server and cluster head information; When load balancing is acted on behalf of and surprisingly delayed machine, cluster head can not report load, and the new load balancing agency of the overall situation bunch Server election, upgrades load balancing proxy information.
Claims (7)
1. a shared file system for network dynamic self-organization, is characterized in that comprising:
The overall situation bunch server, for the information of management cluster bunch, synchronous documents between different Clusters, passs on instruction between client and Clusters;
One or more Clusters, for management document, receives client upload file, to client distribution of document; With
One or more client, for affiliated Clusters upload file and download file.
2. the shared file system of a kind of network dynamic self-organization according to claim 1, is characterized in that: described Clusters comprises:
Cluster head, for managing the inner all nodal informations of affiliated Clusters, passes on the overall situation bunch server instruction to other nodes;
Load balancing is acted on behalf of, and for the load of statistical cluster cluster node, optimum selecting performs distribution of document task node;
One or more file server, for receiving client upload file, to client distribution of document and Storage sharing file.
3. the shared file system of a kind of network dynamic self-organization according to claim 1, is characterized in that: use UDP connected mode to be connected to each other between cluster head, load balancing agency and file server; UDP connected mode is used to be connected to each other between multiple file server.
4. a file-sharing implementation method for network dynamic self-organization, is characterized in that comprising the following steps:
(1), after Clusters starts, registration request is initiated to the overall situation bunch server; Cluster head in the overall situation bunch server settings Clusters, load balancing agency and file server, and the information of record set group variety; File server file consistence in cluster head set of organizations group variety, the load of the cluster head in load balancing proxy polling Clusters, load balancing agency and file server;
(2) if client upload file, then step (3) is proceeded to; If client downloads file, then proceed to step (6);
(3) client initiates upload file request to the overall situation bunch server, and belonging to the overall situation bunch server instruction client, the cluster head of Clusters accepts to upload task;
(4) cluster head instruction load balancing agent selection carries out task scheduling; Load balancing agency is according to node load polling result, and the file server selecting load light receives the file of client upload; After the file server reception upload file that this load is light, in cluster head instruction Clusters, alternative document server completes file synchronization, and upload file is sent to the overall situation bunch server;
(5) upload file is sent to other Clusters by the overall situation bunch server, completes file synchronization between Clusters, terminates;
(6) client initiates download file request to the overall situation bunch server, and belonging to the overall situation bunch server instruction client, cluster head accepts downloading task;
(7) cluster head instruction load balancing agent selection carries out task scheduling; Load balancing agency, according to node load polling result, selects the light one or more file servers of load to carry out file distributing; If multiple file server execute file distributed tasks, cluster head is multiple file fragment according to performing the file server quantity of distributed tasks by file division, after client receives multiple file fragment, carries out file assembling and obtains whole file.
5. the file-sharing implementation method of a kind of network dynamic self-organization according to claim 4, is characterized in that: step (5) is specially:
(501) overall situation bunch server indicates the cluster head of other Clusters to accept file synchronization task;
(502) the respective cluster head of other Clusters indicates the agency of the load balancing in this bunch to carry out synchronous task scheduling, load balancing agency in this bunch is according to load polling result, the file server selecting this Clusters internal burden light receives the file of the overall situation bunch server sync, after the file server reception synchronous documents that this load is light, the cluster head of this Clusters indicates alternative document server in this Clusters to complete file synchronization.
6. the file-sharing implementation method of a kind of network dynamic self-organization according to claim 4, it is characterized in that: when file server and load balancing agency exit, the request of exiting is sent to affiliated cluster head, cluster head, load balancing agency and the overall situation bunch server update bunch information, elect new load balancing to act on behalf of; When cluster head node exits, send to a overall situation bunch server request of exiting, the overall situation bunch server update bunch information, elects new cluster head.
7. the file-sharing implementation method of a kind of network dynamic self-organization according to claim 4, it is characterized in that: file server and cluster head delay machine time, load balancing agency can not obtain its load, the new cluster head of the overall situation bunch Server election, transaction file server and cluster head information; When load balancing is acted on behalf of and delayed machine, cluster head can not report load, and the new load balancing agency of the overall situation bunch Server election, upgrades load balancing proxy information.
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| CN105516343B (en) | 2018-07-17 |
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