CN108234542A - A kind of airborne file network implementation method - Google Patents
A kind of airborne file network implementation method Download PDFInfo
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- CN108234542A CN108234542A CN201611153212.9A CN201611153212A CN108234542A CN 108234542 A CN108234542 A CN 108234542A CN 201611153212 A CN201611153212 A CN 201611153212A CN 108234542 A CN108234542 A CN 108234542A
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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
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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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
- H04L67/2866—Architectures; Arrangements
- H04L67/30—Profiles
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention belongs to computer system software professional skill fields, are related to a kind of airborne file network implementation method.Use global dictionary structure and unified file interface, the local file resource tissue that each node is disperseed becomes a unified entirety in logic, it is shared and efficient access problem for the safety of file under onboard networks environment, the purpose of the present invention is to propose to a kind of airborne file network management methods, by global dictionary institutional framework and unified file interface, ease for use and ease of manageability of the user to airborne file are improved；Pass through stateless server mechanism, it is ensured that fault-tolerant and service the availability of system；By static resource pond mechanism, certainty and the safety of system are improved；By multi-channel parallel message transfer mechanism, the access efficiency of file system is improved.Finally, it disclosure satisfy that requirement of the synthetic aviation electronic system in the utilization rate of ease for use, safety and system resource etc..
Description
Technical field
The invention belongs to computer system software professional skill fields, are related to a kind of airborne file network implementation method.
Background technology
New-generation distributed avionics system passes through the side of resource-sharing using synthesization, modular design philosophy
Formula realizes avionics function synthesized, there is an urgent need to which networking mode is used to share and uses file resource, faces user to airborne text
The problems such as the ease for use ease of manageability of part, service availability, system certainty, security of system, file access efficiency.
Invention content
The purpose of the present invention：
The purpose of the present invention is to propose to a kind of airborne file network implementation methods, pass through global dictionary institutional framework and system
One file interface improves ease for use and ease of manageability of the user to airborne file；Pass through stateless server mechanism, it is ensured that
Fault-tolerant and service the availability of system；By static resource pond mechanism, certainty and the safety of system are improved；Pass through
Multi-channel parallel message transfer mechanism improves the access efficiency of file system.Finally, it disclosure satisfy that synthetic aviation electronic system
It unites in the requirement of the utilization rate of ease for use, safety and system resource etc..
Technical scheme of the present invention：
Mainly include：Logic function unit, virtual directory structure, unified file interface, client, server, parallel biography
Defeated agreement, resource management, configuration tool etc..As shown in Figure 1.
The SC service ceiling of resource management resource defined in configuration file, resource type include：Semaphore, queue and memory
Three kinds of resources；Resource bid and realizing interface are provided for every class resource, allows dynamic application on demand and release resource.
Configuration tool is for generation about the resource of client and server and the configuration file of parameter, configuration file content
Including：The information such as systematic parameter configuration, file system path configuration and deployment configuration.
Logic function unit (LFU) is the basic unit of file management, and being one has independent resource, particular application process
Function and the logic entity of independent input output, application software is a part for logic function unit, application number and Apply Names
It is the globally unique address of logic function unit.
The path name format that virtual directory structure defines is：By logic function unit name, storage medium and remaining group of paths
Into；Wherein logic function unit name, storage medium form virtual level, remaining path configuration file Actual path layer；Storage medium
Static configuration, the entitled file access of logic function unit provide address and enter in allocation list with local file directory mapping relations
Mouthful, storage medium provides dielectric property information.
Unified Network file operation interface provides the common interfaces for Local or Remote file access, such as open, close,
Reading and writing, needle locating, directory creating, deletion, reading etc..
Client and server is a part for logic function unit and the globally unique address of Application share, in Different Logic
In functional unit, as needed, it can be disposed with separate configurations.Each logic function unit either client or
Server end or combination.
Client provides a user file management interface (API), and routing local/remote accesses.When progress local file visit
When asking, check file access permission, and carry out file operation, handling result is returned into user；When progress remote document access
When, file operation requests are sent, and the handling result that server end is beamed back is returned into user to server end.
Server end resides in the processing node for providing shared file resource, and function is to receive the request of client, inspection
File access permission is looked into, realizes that local file accesses, passes result back client.To carry out fault-tolerant place to repeating file request
Reason, server end establish a history lists, and each list item includes：The letters such as access originator logical unit number and request number, request results
Breath；When request is for the first time reaches, then apply for new list item and insertion process information, when request for it is non-reach for the first time when perform that repeat please
Processing is asked, result return is directly taken out from history lists, using source logic unit and the global uniqueness of request combination number, is sentenced
Whether disconnected is to reach for the first time.
Transport protocol is the tie of interaction between client-server, provides the high-performance file based on request-response mechanism
Transfer function when client accesses file on server every time, will carry necessary file status in protocol message
Information, the server by utilizing information operation file, and return the result, client changes the real-time shape of file using result information
State, file status information include：The information such as file name, filec descriptor, file pointer, physical location.In Server Restart
Of short duration interval file access services will be unavailable, client internal logic utilize retransmission algorithm, tolerance transient service it is unavailable,
This process is transparent to the application in logic function unit；File message can be split as multiple groupings as needed, and grouping is to connect
The basic unit of transmission is connect, grouping includes the information such as message number and packet number；When sending, one is selected from parallel connection list
A available connection sends grouping, when receiving：It can use and connect in traversal parallel connection list, taking-up grouping, buffered packet,
And it combines and claims a complete message；To each file message, the grouping for establishing file message receives chained list；To each arrival
Grouping, chained list is sequentially inserted into according to packet number；When grouping all arrives at, restore file message；To repeated packets, discarding plan is taken
Slightly；Each chained list is with timer, if within the regulation time limit, the chained list is then removed in missing grouping.
The present invention has the advantage that effect：
The present invention provides a kind of modes of the airborne file resource of networking service system, improve the degree of share and profit of file
With rate；By global dictionary institutional framework and unified file interface, the ease for use and ease of manageability of user are improved；Pass through nothing
State server mechanism, it is ensured that fault-tolerant and service the availability of system；By static resource pond mechanism, system is improved
Certainty and safety；
By multi-channel parallel message transfer mechanism, the access efficiency of file system is improved.
Description of the drawings
Fig. 1 is airborne file network realization figure
Fig. 2 is airborne file network management method typical case instance graph.
Specific embodiment
The typical case example of the present invention is as shown in Figure 2：
(1) Exemplary Operating Environment
One synthesization modular avionics platform, including：Tetra- physical nodes of N1, N2, N3 and N4, bottom use FC
Network communication, local file system use FAT32, and the interface of local file system uses POSIX interfaces.
(2) configuration data design generation and deployment
A. the logic function unit title that four physical nodes are resident is respectively：NODE1, NODE2, NODE3, NODE4, portion
Administration's pattern is respectively：C (client), C (client), C (client) and S (server)；
B. allocation list static mappings relationship：The virtual RAM catalogue of 4 nodes both maps to the A of local file system:\RAM
In catalogue；
C. resource quota is set：It is that 16, number of queues is 16 that the memory of 4 nodes, which is 3MB, semaphore quantity,；
D. configuration tool generation configuration file nfs.dat is utilized；The configuration file is loaded to 4 physical nodes, and is ensured
The position being stored in local file is：A:\nfs.dat.
(3) application effect
A. after synthesization modular avionics platform starts, the network topology between 4 nodes is established；
B.4 Network File System is read in a logic function unit and resolution path is A:Nfs.dat configuration file,
It is deployed as C, C, C and S mode respectively；
C.4 a node establishes resource pool, and assists completing to initialize.
D.NODE1 uses NODE4：Ram 1.txt operation telefile, operate successfully；
E.NODE1 uses NODE1：Ram 1.txt operation local file, operate successfully.
Claims (5)
1. a kind of airborne file network implementation method, it is characterised in that：By logic function unit, virtual directory structure, uniformly
File interface, client, server, parallel transmission agreement, resource management, configuration tool composition, virtual directory structure are：By patrolling
Collect functional unit name, storage medium and remaining path composition；Wherein logic function unit name, storage medium form virtual level,
Remaining path configuration file Actual path layer；Storage medium and local file directory the mapping relations static configuration in allocation list, are patrolled
It collects functional unit entitled file access and address entries is provided, storage medium provides dielectric property information, Unified Network file operation
Interface provides the common interfaces for Local or Remote file access；Pass through following steps；(1) client and server is logic
The globally unique address of a part and Application share of functional unit, as needed, can be independent in Different Logic functional unit
Configuration deployment.Each logic function unit is either client or server end or combination；
(2) client provides a user file management interface (API), and routing is locally or remotely accessible, when carrying out local file access,
It checks file access permission, and carries out file operation, handling result is returned into user；When carrying out remote document access, to
Server end sends file operation requests, and the handling result that server end is beamed back is returned to user；(3) server end is resident
In the processing node for providing shared file resource, the request of client is received, checks file access permission, realizes that local file is visited
It asks, passes result back client, to carry out fault-tolerant processing to repeating file request, server end establishes a history lists, when please
It asks to reach for the first time, then applies for new list item and insertion process information, repetitive requests processing is performed when request is non-arrival for the first time,
Result return is directly taken out from history lists, using source logic unit and the global uniqueness of request combination number, is judged whether
To reach for the first time；(4) transport protocol provides the file transmitting function of request mechanism, response mechanism, and client accesses service every time
On device when file, necessary file status information, server by utilizing information operation text will be carried in protocol message
Part, and return the result, client changes the real-time status of file using result information, in the of short duration interval file of Server Restart
The service of access will be unavailable, and client internal logic utilizes retransmission algorithm, and tolerance transient service is unavailable, this process is to logic work(
Application in energy unit is transparent；File message can be split as multiple groupings as needed, and grouping is the substantially single of connection transmission
Member, grouping include the information such as message number and packet number；When sending, an available connection is selected from parallel connection list,
Grouping is sent, when receiving：Connection can be used in traversal parallel connection list, takes out grouping, buffered packet, and it is complete to combine title one
Whole message；To each file message, the grouping for establishing file message receives chained list；Grouping to each arrival, according to grouping
Number it is sequentially inserted into chained list；When grouping all arrives at, restore file message；To repeated packets, drop policy is taken；Each chained list is equal
With timer, if within the regulation time limit, the chained list is then removed in missing grouping.
2. a kind of airborne file network implementation method according to claim 1, it is characterised in that：The resource type includes：
Three kinds of semaphore, queue and memory resources, the semaphore, queue and memory source is provide resource bid per class resource and release
Put interface.
3. a kind of airborne file network implementation method according to claim 1, it is characterised in that：The configuration file includes：
Systematic parameter configuration, file system path configuration and deployment configuration information.
4. a kind of airborne file network implementation method according to claim 1, it is characterised in that：The history lists includes：It visits
Ask source logical unit number and request number, request results information.
5. a kind of airborne file network implementation method according to claim 1, it is characterised in that：The file status packet
It includes：File name, filec descriptor, file pointer, physical location information.
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| CN201611153212.9A CN108234542A (en) | 2016-12-14 | 2016-12-14 | A kind of airborne file network implementation method |
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| CN201611153212.9A CN108234542A (en) | 2016-12-14 | 2016-12-14 | A kind of airborne file network implementation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112433983A (en) * | 2019-08-26 | 2021-03-02 | 无锡江南计算技术研究所 | File system management method supporting multi-job parallel IO performance isolation |
| CN112532728A (en) * | 2020-11-30 | 2021-03-19 | 中国航空工业集团公司西安航空计算技术研究所 | Deterministic airborne high-performance file transmission method and system |
| CN114531402A (en) * | 2021-12-29 | 2022-05-24 | 中国航空工业集团公司西安航空计算技术研究所 | Method and system for storing standard network file |
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| CN114531402A (en) * | 2021-12-29 | 2022-05-24 | 中国航空工业集团公司西安航空计算技术研究所 | Method and system for storing standard network file |
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Application publication date: 20180629 |