CN105912677A - Method and system for implementing document transmission between FTP and HDFS based on OOZIE - Google Patents
Method and system for implementing document transmission between FTP and HDFS based on OOZIE Download PDFInfo
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- CN105912677A CN105912677A CN201610228349.XA CN201610228349A CN105912677A CN 105912677 A CN105912677 A CN 105912677A CN 201610228349 A CN201610228349 A CN 201610228349A CN 105912677 A CN105912677 A CN 105912677A
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- ftp
- file
- hdfs
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/119—Details of migration of file systems
-
- 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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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The invention relates to a method and system for implementing document transmission between an FTP and a HDFS based on OOZIE. The method comprises the steps that at the step S1, an FTP functional module is defined by the OOZIE according to a preset key field; at the step S2, the FTP functional module is called by the OOZIE; at the step S3, an MapReduce program is called by the FTP functional module; and at the step S4, mutual copying of documents of the HDFS document system and the FTP server can be implemented by the MapReduce program. The method and the system provided by the invention are characterized in that an FTP function is supported by the OOZIE through the customized module; and thus the document transmission between the FTP and the HDFS is implemented.
Description
Technical field
The present invention relates to OOZIE field, particularly relate to that a kind of to realize FTP with HDFS based on OOZIE mutual
The method and system of transmitting file.
Background technology
In the mobile Internet epoch, the user behavior data amount surge of mobile communications industry, wherein HDFS is
The system of one Error Tolerance, is suitable for being deployed on cheap machine, and HDFS is provided that high-throughput
Data access, the application being especially suitable on large-scale dataset.FTP is two calculating on TCP/IP network
Machine transmits the agreement of file, and FTP is copied to file server from client computer by Internet
A kind of approach, FTP client can send order to download file to server, and upper transmitting file creates
Or the catalogue on change server.
Oozie is a kind of Java web application, and Oozie can be multiple MapReduce operation groups
Closing in a logical unit of work, thus complete large-scale task, Oozie itself does not has support
The assembly of FTP function, therefore cannot realize inter-transmitting file between FTP and HDFS based on OOZIE.
Summary of the invention
The technical problem to be solved is for the deficiencies in the prior art, it is provided that a kind of based on
OOZIE realizes the method and system of FTP Yu HDFS inter-transmitting file.
The technical scheme is that a kind of based on OOZIE realize FTP with
The method of HDFS inter-transmitting file, comprises the steps:
Step S1, by OOZIE according to the critical field definition FTP functional unit preset;
Step S2, calls FTP functional unit by OOZIE;
Step S3, calls MapReduce program by FTP functional unit;
Step S4, realizes the file of HDFS file system and ftp server by MapReduce program
Mutually replicate.
The invention has the beneficial effects as follows: the present invention passes through self-defined FTP functional unit, enables OOZIE
Call MapReduce program and realize inter-transmitting file between FTP and HDFS, compensate for nothing in prior art
Method realizes the blank of inter-transmitting file between FTP and HDFS by OOZIE, it is possible to exist according to user's request
Realize under OOZIE environment from FTP download files passe to HDFS, or from HDFS download file
And it is uploaded to FTP.
On the basis of technique scheme, the present invention can also do following improvement.
Further, in described FTP functional unit the configuration item of critical field include FTP component type,
FTP/SFTP host-host protocol, ftp server address, ftp server port, connection user name, connection
Password, the connection mode of active/passive, the direction uploaded/download, server path, HDFS path with
And asterisk wildcard wildcard matching files title.
Above-mentioned further scheme is used to provide the benefit that: by configuring key item in FTP functional unit,
It is capable of MapReduce program to be connected with FTP, and then realizes uploading or downloading file.
Further, in step S3, by FTP functional unit by the java assembly of extension, call
MapReduce program.
Above-mentioned further scheme is used to provide the benefit that: to be called by the java assembly of extension
MapReduce program can strengthen the subsequent expansion ability of MapReduce program, when needs are revised
Wait and directly MapReduce program is modified and commissioning.
Further, being implemented as of step S4, MapReduce program judges that file replicates direction,
To file is copied to ftp server from HDFS file system, then MapReduce program is from HDFS
File system downloads file, and is uploaded to ftp server;To file is copied to from ftp server
HDFS file system, then MapReduce program downloads file from ftp server, and is uploaded to HDFS
File system.
Above-mentioned further scheme is used to provide the benefit that: to provide and how to realize by MapReduce journey
The detailed process that the file of HDFS file system Yu ftp server is mutually replicated by sequence.
Further, in step S4, the file name of file that MapReduce program will be uploaded or downloaded
Reduce.
Above-mentioned further scheme is used to provide the benefit that: due to the download from HDFS or FTP
The file name of file is mated by Wildcard, when by files passe to FTP or HDFS,
Filename can be reduced by MapReduce program.
The another kind of technical scheme that the present invention solves above-mentioned technical problem is as follows: a kind of based on OOZIE realization
The system of FTP Yu HDFS inter-transmitting file, including:
Definition module, for defining FTP functional unit by OOZIE according to the critical field preset;
First calling module, for calling FTP functional unit by OOZIE;
Second calling module, for calling MapReduce program by FTP functional unit;
File replication module, takes with FTP for realizing HDFS file system by MapReduce program
The file of business device mutually replicates.
The invention has the beneficial effects as follows: the present invention passes through self-defined FTP functional unit, enables OOZIE
Call MapReduce program and realize inter-transmitting file between FTP and HDFS, compensate for nothing in prior art
Method realizes the blank of inter-transmitting file between FTP and HDFS by OOZIE, it is possible to exist according to user's request
Realize under OOZIE environment from FTP download files passe to HDFS, or from HDFS download file
And it is uploaded to FTP.
On the basis of technique scheme, the present invention can also do following improvement.
Further, in described FTP functional unit the configuration item of critical field include FTP component type,
FTP/SFTP host-host protocol, ftp server address, ftp server port, connection user name, connection
Password, the connection mode of active/passive, the direction uploaded/download, server path, HDFS path with
And asterisk wildcard wildcard matching files title.
Above-mentioned further scheme is used to provide the benefit that: by configuring key item in FTP functional unit,
It is capable of MapReduce program to be connected with FTP, and then realizes uploading or downloading file.
Further, being implemented as of described second functional module:
By FTP functional unit by the java assembly of extension, call MapReduce program.
Above-mentioned further scheme is used to provide the benefit that: to be called by the java assembly of extension
MapReduce program can strengthen the subsequent expansion ability of MapReduce program, when needs are revised
Wait and directly MapReduce program is modified and commissioning.
Further, being implemented as of described file replication module:
MapReduce program judges that file replicates direction, to be copied to by file from HDFS file system
Ftp server, then MapReduce program downloads file from HDFS file system, and is uploaded to FTP
Server;To file is copied to HDFS file system, then MapReduce journey from ftp server
Sequence downloads file from ftp server, and is uploaded to HDFS file system.
Above-mentioned further scheme is used to provide the benefit that: to provide and how to realize by MapReduce journey
The detailed process that the file of HDFS file system Yu ftp server is mutually replicated by sequence.
Further, in described file replication module, the file that MapReduce program will be uploaded or downloaded
File name reduce.
Above-mentioned further scheme is used to provide the benefit that: due to the download from HDFS or FTP
The file name of file is mated by Wildcard, when by files passe to FTP or HDFS,
Filename can be reduced by MapReduce program.
Accompanying drawing explanation
Fig. 1 is the method flow diagram realizing FTP Yu HDFS inter-transmitting file based on OOZIE of the present invention;
Fig. 2 is that in the present invention, OOZIE performs FTP functional unit flow chart;
Fig. 3 is the system construction drawing realizing FTP Yu HDFS inter-transmitting file based on OOZIE of the present invention.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining this
Invention, is not intended to limit the scope of the present invention.
It is presented herein below for some explanations of nouns that the present invention relates to.
Oozie:Oozie is a kind of Java web application, and it operates in Java servlet container
In i.e. Tomcat, and use database to store herein below: workflow defining, and currently transport
The workflow instance of row, including state and the variable of example.
HDFS:Hadoop Distributed File System, Hadoop distributed file system.
FTP:File Transfer Protocol, FTP, it is simply that be specifically used to transmission literary composition
The agreement of part.The Main Function of FTP, it is simply that allow user connect remote computer (these computers
On run ftp server program) check which file remote computer has, then file from remotely
Copy local computer on computer, or the file of local computer is delivered to remote computer.
MapReduce:MapReduce is a kind of programming model, for large-scale dataset (more than 1TB)
Concurrent operation.Concept " Map (mapping) " and " Reduce (reduction) ", and their main thought, all
Borrow from Functional Programming, also have the characteristic borrowed from vector programming language.It is very big
Facilitate programming personnel and the program of oneself will not operated in point in the case of distributed parallel programming
In cloth system.Current software realizes being to specify Map (mapping) function, is used for one group of key assignments
To being mapped to one group of new key-value pair, it is intended that concurrent Reduce (reduction) function, it is used for ensureing all reflecting
Each in the key-value pair penetrated shares identical key group.
Owing in prior art, OOZIE itself does not support the assembly of FTP function, therefore we can lead to
Cross self-defining assembly to fill up this blank.The general thought of the present invention is: utilize OOZIE to adjust
By the characteristic of MapReduce, by arranging self-defining component Name, call self-defining component code,
Call the MapReduce program of correspondence to realize the mutual duplication of ftp server and HDFS file system.
Before such scheme realizes, therefore, to assure that HDFS file system normal operation and OOZIE run
Normally, and need according to preset keyword section, configure such as in the workflow.xml of OOZIE
Information described in following table.
Configuration item | Configuration instruction | Rule | The most necessary |
Component type | This component type | It is fixed as ftp | Necessary |
type | Host-host protocol | ftp/sftp | Necessary |
ip | Ftp server address | Necessary | |
port | Ftp server port | Necessary | |
user | Connect user name | Necessary | |
pwd | Connect password | Necessary | |
mode | Connection mode (active/passive) | active/pasv | Necessary |
direction | Direction (is uploaded or is downloaded) | get/put | Necessary |
remote_dir | Server path | Necessary | |
hdfs_dir | Hdfs path | Necessary | |
file_name | File name | Wildcard mates | Necessary |
Fig. 1 is the method flow diagram realizing FTP Yu HDFS inter-transmitting file based on OOZIE of the present invention.
As it is shown in figure 1, a kind of method realizing FTP Yu HDFS inter-transmitting file based on OOZIE, including
Following steps:
Step S1, by OOZIE according to the critical field definition FTP functional unit preset.
Step S2, calls FTP functional unit by OOZIE.
OOZIE calls self-defining FTP functional unit, and some essential informations are stored mysql number
According in storehouse.
Step S3, calls MapReduce program by FTP functional unit.
Particularly as follows: FTP functional unit by extension java assembly, call finished writing there is FTP
The MapReduce program of function.
Step S4, realizes the file of HDFS file system and ftp server by MapReduce program
Mutually replicate.
Particularly as follows: MapReduce program is different according to incoming parameter, carries out replicating direction and file is multiple
The judgement of system, to file is copied to ftp server from HDFS file system, then MapReduce
Program downloads file from HDFS file system, and is uploaded to ftp server;To from ftp server
File is copied to HDFS file system, then MapReduce program downloads file from ftp server,
And it is uploaded to HDFS file system.Wherein, MapReduce program realizes map () function, will upload or
The file name of the file downloaded is reduced.File due to download from HDFS or FTP
File name is mated by Wildcard, when needs are uploaded to FTP or HDFS, it is necessary to
Filename is reduced by MapReduce program.
Fig. 2 is that in the present invention, OOZIE performs FTP functional unit flow chart.
OOZIE as shown in Figure 2 performs FTP functional unit flow chart can show that each is adjusted more intuitively
Mutual with process and MapReduce program and HDFS file system and ftp server.
The FTP functional unit of the present invention can use the mode that OOZIE directly invokes, it is possible to uses HADOOP
Order line performs the mode of MapReduce.
In the specific embodiment of the present invention, according to different configuration files (workflow.xml), run
OOZIE_HOME/bin/oozie job-config job.properties run, to realize file
It is copied to FTP from HDFS or is copied to HDFS from FTP.
Fig. 3 is the system construction drawing realizing FTP Yu HDFS inter-transmitting file based on OOZIE of the present invention.
According to the above-mentioned method realizing FTP Yu HDFS inter-transmitting file based on OOZIE, it can be deduced that corresponding
A kind of system realizing FTP Yu HDFS inter-transmitting file based on OOZIE as shown in Figure 3, including:
Definition module, for defining FTP functional unit by OOZIE according to the critical field preset;First adjusts
By module, for calling FTP functional unit by OOZIE;Second calling module, is used for passing through FTP
Functional unit calls MapReduce program;File replication module, for real by MapReduce program
Existing HDFS file system mutually replicates with the file of ftp server.
Wherein, the configuration item in FTP functional unit includes that the component type of FTP, FTP/SFTP transmit association
View, ftp server address, ftp server port, connection user name, connection password, active/passive
Connection mode, the direction uploaded/download, server path, HDFS path and asterisk wildcard wildcard
Matching files title.
Being implemented as of second functional module: by FTP functional unit by the java assembly extended,
Call MapReduce program.
Being implemented as of file replication module: to file is copied to FTP from HDFS file system
Server, then MapReduce program downloads file from HDFS file system, and is uploaded to FTP service
Device;To from ftp server file is copied to HDFS file system, then MapReduce program from
Ftp server downloads file, and is uploaded to HDFS file system.
In file replication module, the file name of the file uploaded or download is carried out by MapReduce program
Reduction.
In the present invention, OOZIE itself does not support the assembly of FTP function, can by self-defining assembly
To fill up this blank;And assembly can directly invoke MapReduce program, and subsequent expansion ability is relatively
By force, can directly MapReduce be modified and commissioning;Self-defined OOZIE extension element deployment side
Just, after generating jar bag, put into lib and restart and can come into force.
In the description of this specification, reference term " embodiment one ", " embodiment two ", " example ",
The description of " concrete example " or " some examples " etc. means to combine this embodiment or the tool of example description
Body method, device or feature are contained at least one embodiment or the example of the present invention.In this explanation
In book, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And,
The specific features, method, device or the feature that describe can be with in one or more embodiments in office or examples
Combine in an appropriate manner.Additionally, in the case of the most conflicting, those skilled in the art is permissible
The feature of the different embodiments described in this specification or example and different embodiment or example is carried out
In conjunction with and combination.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (10)
1. the method realizing FTP Yu HDFS inter-transmitting file based on OOZIE, it is characterised in that bag
Include following steps:
Step S1, by OOZIE according to the critical field definition FTP functional unit preset;
Step S2, calls FTP functional unit by OOZIE;
Step S3, calls MapReduce program by FTP functional unit;
Step S4, realizes the file of HDFS file system and ftp server by MapReduce program
Mutually replicate.
The method realizing FTP Yu HDFS inter-transmitting file based on OOZIE the most according to claim 1,
It is characterized in that, in described FTP functional unit the configuration item of critical field include FTP component type,
FTP/SFTP host-host protocol, ftp server address, ftp server port, connection user name, connection
Password, the connection mode of active/passive, the direction uploaded/download, server path, HDFS path with
And asterisk wildcard wildcard matching files title.
The method realizing FTP Yu HDFS inter-transmitting file based on OOZIE the most according to claim 1,
It is characterized in that, in step S3, by FTP functional unit by the java assembly of extension, call
MapReduce program.
The method realizing FTP Yu HDFS inter-transmitting file based on OOZIE the most according to claim 2,
It is characterized in that, being implemented as of step S4, MapReduce program judges that file replicates direction, if
From HDFS file system, file will be copied to ftp server, then MapReduce program is from HDFS literary composition
Part system downloads file, and it is uploaded to ftp server;To file is copied to HDFS from ftp server
File system, then MapReduce program downloads file from ftp server, and is uploaded to HDFS file
System.
The method realizing FTP Yu HDFS inter-transmitting file based on OOZIE the most according to claim 4,
It is characterized in that, in step S4, the file name of the file uploaded or download is entered by MapReduce program
Row reduction.
6. the system realizing FTP Yu HDFS inter-transmitting file based on OOZIE, it is characterised in that bag
Include:
Definition module, for defining FTP functional unit by OOZIE according to the critical field preset;
First calling module, for calling FTP functional unit by OOZIE;
Second calling module, for calling MapReduce program by FTP functional unit;
File replication module, takes with FTP for realizing HDFS file system by MapReduce program
The file of business device mutually replicates.
The system realizing FTP Yu HDFS inter-transmitting file based on OOZIE the most according to claim 6,
It is characterized in that, in described FTP functional unit the configuration item of critical field include FTP component type,
FTP/SFTP host-host protocol, ftp server address, ftp server port, connection user name, connection
Password, the connection mode of active/passive, the direction uploaded/download, server path, HDFS path with
And asterisk wildcard wildcard matching files title.
The system realizing FTP Yu HDFS inter-transmitting file based on OOZIE the most according to claim 6,
It is characterized in that, being implemented as of described second functional module:
By FTP functional unit by the java assembly of extension, call MapReduce program.
The system realizing FTP Yu HDFS inter-transmitting file based on OOZIE the most according to claim 7,
It is characterized in that, being implemented as of described file replication module:
MapReduce program judges that file replicates direction, to be copied to by file from HDFS file system
Ftp server, then MapReduce program downloads file from HDFS file system, and is uploaded to FTP
Server;To file is copied to HDFS file system, then MapReduce journey from ftp server
Sequence downloads file from ftp server, and is uploaded to HDFS file system.
The system realizing FTP Yu HDFS inter-transmitting file based on OOZIE the most according to claim 9,
It is characterized in that, in described file replication module, MapReduce program is by the file uploading or download
File name is reduced.
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