CN103699666A - Transmission method and transmission device for splitting data - Google Patents
Transmission method and transmission device for splitting data Download PDFInfo
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- CN103699666A CN103699666A CN201310741618.9A CN201310741618A CN103699666A CN 103699666 A CN103699666 A CN 103699666A CN 201310741618 A CN201310741618 A CN 201310741618A CN 103699666 A CN103699666 A CN 103699666A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3072—Packet splitting
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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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
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Abstract
The invention discloses a transmission method for splitting data. By the aid of the transmission method, transmission errors caused when data files are split or are written into disk arrays can be prevented. The transmission method includes steps of detecting and judging whether transaction occurs in data files of local directories or not; placing the data files into corresponding internal queues if the transaction occurs in the data files; determining the quantities of split sections of the data files; acquiring the data files from the internal queues and splitting the data files according to the quantities of the split sections; reading the split sections and sequentially writing the split sections into target files. The transmission method has the advantages that data file transmission procedures are modified, and accordingly the data files do not need to be fetched from clients again if the errors are caused when the data files are written into the target files.
Description
Technical field
The application relates to the method for data transmission, is specifically related to a kind of transmission method and device of data cutting.
Background technology
Along with the Fast Growth of network traffics, many services that are not easy in the past to realize also can be completed easily.For example: broadband upload multimedia file (multimedia file).Because the transmission of magnanimity still can affect the load of server.Therefore at known multimedia server, also can possess the function of Bandwidth Management (Bandwidth Manager).Server can see through the modes such as bandwidth distribution or buffer memory and alleviate the data transmission amount of same time.
In addition, described transmission mode more combines a plurality of entity disks, and what make that data can be synchronous writes in described disk.And prior art writes the mode of disk to data, be that the synchronous origin source of data is write in server.Server can be kept in these data files.Afterwards, server by these data files in batches write entity disk.
Realizing of this mode writing is with low cost and quick.If but in the process that data write, make a mistake, data can only write again.Therefore the time that data are transmitted again will be elongated, and can increase the load of the network bandwidth.In addition, same one data file is except will being again written into from client, and will again transmit in server inside.
Summary of the invention
The application's technical matters to be solved is to provide a kind of transmission method of data cutting, avoids data file when cutting or the error of transmission occurring while writing disk array.
In order to address the above problem, the application has separately disclosed a kind of transmission method of data cutting, comprises the following steps: whether the data file of detecting local directory has unusual fluctuation; If described data file has unusual fluctuation, described data file is inserted in corresponding internal queues; Determine the quantity of the cutting fragment of described data file; From described internal queues, obtain described data file, and according to the quantity of described cutting fragment, described data file is carried out to cutting, and record segmental information; According to described segmental information, read described cutting fragment, and each cutting fragment is sequentially write in file destination.
Further comprise judge that the unusual fluctuation data of described data file are newly-increased, data-moving, data modification or data delete.
Comprise further whether the volume of services that judges described internal queues is greater than preset pressure threshold values; When if described volume of services is greater than described preset pressure threshold values, at least one heartbeat server, send warning requirement.
Further comprise that described heartbeat server receives the heartbeat requirement that comes from described control module in turn.
Whether the content that further comprises the described cutting fragment that judgement writes is correct; If the content of described cutting fragment is wrong, at least one heartbeat server, send warning requirement.
Further comprise that described heartbeat server receives the heartbeat requirement that comes from described control module in turn.
The reference position and the side-play amount that further comprise the described data file of segmental information recording section described in each.
Further comprise according to reference position and the side-play amount of the described data file of the part of described segmental information record and carry out cutting.
The transmitting device that disclosed herein as well is a kind of data cutting, comprising:
Whether scan module, have unusual fluctuation for detecting the data file of local directory;
Control module, if having unusual fluctuation for described data file, inserts described data file in corresponding internal queues;
Worker thread module for determining the quantity of the cutting fragment of described data file, and obtains described data file, and according to the quantity of described cutting fragment, described data file is carried out to cutting, and records segmental information from described internal queues; And
Transport module, for read described cutting fragment according to described segmental information, and sequentially writes each cutting fragment in file destination.
Further, the transmitting device of described data cutting, also comprises: alarm module, for judging whether the volume of services of described internal queues is greater than preset pressure threshold values, when if described volume of services is greater than described preset pressure threshold values, at least one heartbeat server, send warning requirement.
Described transport module is reading described cutting fragment, and when each cutting fragment is sequentially write to file destination, further comprises:
Whether the content of the described cutting fragment that judgement writes is correct; And if the content of described cutting fragment is wrong, send warning requirement at least one heartbeat server.
Compared with prior art, the application can obtain and comprise following technique effect:
1) the application improves the transmitting procedure of data file, if data file is write fashionable making a mistake, the application does not need again from client, to obtain data file.
2), if the application makes a mistake in during transmission data file, the application can see through at least one heartbeat server and transmit messages to backstage personnel, make that backstage personnel can be real-time to learn that what assembly occurs abnormal.
Certainly, arbitrary product of enforcement the application must not necessarily need to reach above-described all technique effects simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, forms the application's a part, and the application's schematic description and description is used for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the thin portion configuration diagram of the embodiment of the present application.
Fig. 2 is the operation workflow schematic diagram of the embodiment of the present application.
Fig. 3 is the embodiment of the present application apparatus structure schematic diagram.
Embodiment
To coordinate drawings and Examples to describe the application's embodiment in detail below, by this application's implementation procedure how application technology means solve technical matters and reach technology effect can be fully understood and be implemented according to this.
As used some vocabulary in the middle of instructions and claim, censure specific components.Those skilled in the art should understand, and hardware manufacturer may be called same assembly with different nouns.This specification and claims are not used as distinguishing the mode of assembly with the difference of title, but the difference in function is used as the criterion of distinguishing with assembly.If " comprising " mentioned in the middle of instructions and claim is in the whole text an open language, therefore should be construed to " comprise but be not limited to "." roughly " refer to that in receivable error range, those skilled in the art can solve the technical problem within the scope of certain error, reach described technique effect substantially.In addition, " couple " word and comprise directly any and electric property coupling means indirectly at this.Therefore, if describe a first device in literary composition, be coupled to one second device, represent that described first device can directly be electrically coupled to described the second device, or be indirectly electrically coupled to described the second device by other devices or the means that couple.Instructions subsequent descriptions is for implementing the application's better embodiment, and right described description is to illustrate that the application's rule is object, not in order to limit the application's scope.The application's protection domain is when being as the criterion depending on the claims person of defining.
The transmission system of the application's data cutting, please refer to the 1st figure.The application's transmission system comprises: local side 110 and many heartbeat servers 120.The application's local side 110 is consisted of following element:
Control module 114, is coupled to local directory 111, and control module 114 comprises at least one internal queues, the path information of internal queues storage data file;
Queue monitor module 115, is connected in control module 114, and queue monitor module 115 produces the queue monitor module 115 of respective amount, the cutting quantity of queue monitor module 115 determination data files according to the quantity of internal queues;
Decentralized file device 117, is connected in worker thread 116, and worker thread 116 is by the cutting fragment file destination that writes decentralized file device 117 sequentially.
And described element moves following step above:
Whether the data file of detecting local directory has unusual fluctuation;
If described data file has unusual fluctuation, described data file is inserted in corresponding internal queues;
Determine the quantity of the cutting fragment of described data file;
From described internal queues, obtain described data file, and according to the quantity of described cutting fragment, described data file is carried out to cutting; And
Read described cutting fragment, and each cutting fragment is sequentially write in file destination.
In addition, the application further comprises transmission module 112 and scan module 113.Upper transmission module 112 is connected in local directory 111 and control module 114.Scan module 113 is connected in local directory 111 and control module 114.For can be simply and whole function mode is clearly described, therefore the first heartbeat server 121 and the second heartbeat server 122 be set in this application.But in fact the quantity of heartbeat server 120 can determine according to factors such as the service ability of server, bandwidth or securities.
Control module 114 is connected in scan module 113, upper transmission module 112, queue monitor module 115, the first heartbeat server 121 and the second heartbeat server 122.Each local directory 111 can be deposited data file separately.For example: video file can be stored puts video local directory, and promotional literature is put as in advertisement local directory.Generally speaking, the data file that local directory 111 meetings reception client regularly sends.To some extent whether the file in scan module 113 supervision local directories 111 unusual fluctuation.Described file unusual fluctuation refers to increasing newly, move, revise or deleting of data.File in local directory 111 during unusual fluctuation, is gone up transmission module 112 and the data file of unusual fluctuation will be passed to control module 114 in the path in server to some extent.
In addition the kind of document of the data file of 111 unusual fluctuations of upper transmission module 112 detecting local directories.Described in the broadest sense kind of document may be audio file, movie file or text file etc.Furthermore, audio file may be subdivided into mp3, m4a, AAC or ARM etc. again; Movie file can be subdivided into mov, flv, m4v, mkv or mp4 etc. again.
If while there is not the internal queues of kind of data file in control module 114, upper transmission module can generate new internal queues by drive control module 114.Thereafter, if there is the data file of one species to be written into, upper transmission module 112 can be put into corresponding internal queues by the data file being newly written into.
Control module 114 can be classified successively and produce each self-corresponding internal queues according to received file path, and different internal queues can assign different queue monitor modules 115 to process.In the 1st figure, be to using the first internal queues, the second internal queues and the 3rd internal queues as signal.The cutting information of the file under each queue monitor module 115 can record.When described cutting information refers to file and is uploaded to local directory 111, file size is unusual fluctuation thereupon also.Before data file cutting, queue monitor module 115 is first taken out correct element (first element of queue) from first internal queues, then just carries out cutting.And being mode according to first in first out (First In First Out, FIFO), the data taking-up mode of internal queues realizes.
Correct element is a character string, such as being " data/ad/ad.log ".Queue monitor module 115 is understood pre-generating object file after taking correct element, and can obtain the size of file destination.According to file size, judgement should be cut into how many cutting fragments to queue monitor module 115.Generally speaking, cutting fragment comprises three information to I haven't seen you for ages: 1. pathname (being aforesaid " data/ad/ad.log " in the application), 2. reference position, 3. end position.
115 pairs of files of queue monitor module carry out isometric cutting.After the cutting that completes file, the fragment of each file cutting is defined as cutting fragment (slice).The stacking quantity of the internal queues 1141 under 115 detectings of queue monitor module surpasses upper prescribing a time limit, and queue monitor module 115 can be sent warning message to the first heartbeat server 121 and the second heartbeat server 122.
And the quantity of cutting fragment is to determine according to the performance of local side 110.For example: 1 worker thread 116 can be processed 50,000,000 cutting fragment, the data file of 200,000,000 is distributed to 116 processing of 4 worker threads so.In like manner, 500,000,000 data file, can distribute to 10 worker threads 116 and process.
The relevant information recording during for cutting is called segmental information.For example, each cutting length during cutting and the side-play amount in disk (offset) of document location.When scan module 113 finds that the data file in local directory 111 is deleted, scan module 113 can be deleted the corresponding internal queues in control module 114.
Then, different cutting fragments can be assigned each self-corresponding worker thread 116, as the data file that reads local directory 111.The realization of worker thread 116 can be realized by different program languages.Do not limit in this application the kind of program language, for example, JAVA language or ASP language.In fact, queue monitor module 115 is the data file of local directory 111 to be carried out to the estimation of cutting, in order to obtain each position that should be split of described data file.And in fact carry out file cutting processing to as if by queue monitor module 115, realized.Queue monitor module 115 is understood according to the length of cutting fragment after obtaining cutting fragment, and divides and task the affiliated partial document data of worker thread 116.Worker thread 116 is writing the data file of described part in decentralized file device 117.
Generally speaking, the first heartbeat server 121 or the second heartbeat server 122 surpass one default during after do not receive heartbeat requirement, heartbeat server 120 can be to sending warning message.But when worker thread 116 makes a mistake in the process writing.Worker thread 116 can send warning message to the first heartbeat server 121 and the second heartbeat server 122.Described worker thread 116 also can be notified other worker threads 116 with the time, requires other worker threads 116 to stop the processing that writes to decentralized file device 117, uses the data integrity of avoiding in decentralized file device 117.
At this, function mode of aforementioned each assembly is represented with following step, please coordinate shown in the 2nd figure:
Step S210: detected the unusual fluctuation of the data file of local directory by scan module;
Step S220: if the unusual fluctuation to some extent of the data file of local directory, upper transmission module is obtained the data of unusual fluctuation
The pathname of file;
Step S230: produce internal queues, and data file is inserted in internal queues;
Step S240: whether the volume of services of monitoring internal queues is greater than preset pressure threshold values;
Step S250: if volume of services is greater than preset pressure threshold values, sent a warning by heartbeat server;
Step S260: if volume of services is less than preset pressure threshold values, the quantity of the cutting fragment of determination data file;
Step S270: configure a plurality of worker threads, worker thread is obtained data file from internal queues, and worker thread carries out cutting according to the quantity of cutting fragment to data file;
Step S280: read cutting fragment, and monitor cutting fragment whether write decentralized file device correct; And
Step S290: if the cutting sheet core dumped writing, worker thread can send warning requirement to heartbeat server.
When local directory 111 stores a large amount of data files, the quantity of the internal queues in control module 114 also can be grown up fast.Because too much internal queues can cause excessive stackingly, can make those data files of handling that worker thread 116 cannot be instant.Whether the volume of services that therefore the application can monitor internal queues is over the preset pressure threshold values of setting.When volume of services surpasses preset pressure threshold values, control module 114 can be sent warning requirement to the first heartbeat server 121 or the second heartbeat server 122.
Then, according to the quantity of cutting fragment, produce corresponding worker thread 116.Each worker thread 116 according to segmental information record corresponding to cutting fragment separately reference position and the side-play amount Partial Fragment of obtaining data file, and the fragment obtaining is write to the file destination in decentralized file device 117.If while there is not file destination in decentralized file device 117, worker thread 116 can be set up the file destination of corresponding data file.In writing the process of file destination, may make a mistake, so the application is when detecting the content of the cutting fragment writing when wrong, can send warning requirement to the first heartbeat server 121 or the second heartbeat server 122.
Also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, commodity or the system that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, commodity or system.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, commodity or the system that comprises described key element and also have other identical element.
Another embodiment of the application also discloses a kind of transmitting device of data cutting, is applied to local side.Please refer to the 3rd figure, described transmitting device 300 comprises scan module 310, control module 320, worker thread module 330 and transport module 340.
Whether scan module 310, have unusual fluctuation for detecting the data file of local directory.The unusual fluctuation kind of detecting described data file further comprises: the unusual fluctuation that judges described data file is that data are newly-increased, data-moving, data modification or data are deleted.
Whether the volume of services that judges described internal queues is greater than preset pressure threshold values; And if described volume of services is while being greater than described preset pressure threshold values, sends warning requirement at least one heartbeat server.
Further, the transmitting device of described data cutting, also comprise: alarm module 350(is not shown), for judging whether the volume of services of described internal queues is greater than preset pressure threshold values, when if described volume of services is greater than described preset pressure threshold values, at least one heartbeat server, send warning requirement.
Describedly read described cutting fragment, and each cutting fragment is sequentially write in file destination, further comprise: whether the content of the described cutting fragment that judgement writes is correct; And
If the content of described cutting fragment is wrong, at least one heartbeat server, send warning requirement.
Described heartbeat server receives the heartbeat requirement that comes from described control module in turn.
Reference position and the side-play amount of the described data file of cutting fragment recording section described in each.Reading described cutting fragment further comprises: according to the reference position of the described data file of described cutting fragment and side-play amount, carry out cutting.
The embodiment that it will be understood by those skilled in the art that the application can be provided as method, system or computer program.Therefore, the application can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the application can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code one or more.
The embodiment that the foregoing is only the application, is not limited to the application.To those skilled in the art, the application can have various modifications and variations.Any modification of doing within all spirit in the application and principle, be equal to replacement, improvement etc., within all should being included in the application's claim scope.
Claims (10)
1. a transmission method for data cutting, is characterized in that, comprises the following steps:
Whether the data file of detecting local directory has unusual fluctuation;
If described data file has unusual fluctuation, described data file is inserted in corresponding internal queues;
Determine the quantity of the cutting fragment of described data file;
From described internal queues, obtain described data file, and according to the quantity of described cutting fragment, described data file is carried out to cutting, and record segmental information; And
According to described segmental information, read described cutting fragment, and each cutting fragment is sequentially write in file destination.
2. the transmission method of data cutting as claimed in claim 1, is characterized in that, the unusual fluctuation kind of detecting described data file further comprises: the unusual fluctuation that judges described data file is that data are newly-increased, data-moving, data modification or data are deleted.
3. the transmission method of data cutting as claimed in claim 1, is characterized in that, described data file is inserted to corresponding internal queues and further comprise:
Whether the volume of services that judges described internal queues is greater than preset pressure threshold values; And
When if described volume of services is greater than described preset pressure threshold values, at least one heartbeat server, send warning requirement.
4. the transmission method of data cutting as claimed in claim 1, is characterized in that, described in read described cutting fragment, and each cutting fragment is sequentially write in file destination, further comprise:
Whether the content of the described cutting fragment that judgement writes is correct; And
If the content of described cutting fragment is wrong, at least one heartbeat server, send warning requirement.
5. the transmission method of data cutting as claimed in claim 1, is characterized in that, the reference position of the described data file of segmental information recording section and side-play amount described in each.
6. the transmission method of data cutting as claimed in claim 5, is characterized in that, reads described cutting fragment and further comprises: according to reference position and the side-play amount of the described data file of the part of described segmental information record, carry out cutting.
7. the transmission method of data cutting as claimed in claim 1, is characterized in that, if there is not file destination, creates file destination.
8. a transmitting device for data cutting, is characterized in that, comprising:
Whether scan module, have unusual fluctuation for detecting the data file of local directory;
Control module, if having unusual fluctuation for described data file, inserts described data file in corresponding internal queues;
Worker thread module for determining the quantity of the cutting fragment of described data file, and obtains described data file, and according to the quantity of described cutting fragment, described data file is carried out to cutting, and records segmental information from described internal queues; And
Transport module, for read described cutting fragment according to described segmental information, and sequentially writes each cutting fragment in file destination.
9. the transmitting device of data cutting as claimed in claim 8, it is characterized in that, also comprise: alarm module, for judging whether the volume of services of described internal queues is greater than preset pressure threshold values, when if described volume of services is greater than described preset pressure threshold values, at least one heartbeat server, send warning requirement.
10. the transmitting device of data cutting as claimed in claim 8, is characterized in that, described transport module is reading described cutting fragment, and when each cutting fragment is sequentially write to file destination, further comprises:
Whether the content of the described cutting fragment that judgement writes is correct; And
If the content of described cutting fragment is wrong, at least one heartbeat server, send warning requirement.
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Effective date of abandoning: 20180921 |
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| AD01 | Patent right deemed abandoned |