CN109947581A - The data transferring method of high concurrent and data transferring method for interchanger - Google Patents
The data transferring method of high concurrent and data transferring method for interchanger Download PDFInfo
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Abstract
The invention discloses a kind of data transferring method of high concurrent and for the data transferring method of interchanger, belong to the data transmission based on linux kernel, technical problems to be solved are how to realize the reception, processing and transmission of high concurrent data；This method receives the UDP message from transmitting terminal based on IO multiplexing technique, carries out multiple threads to UDP message according to the acquisition demand of collection terminal, data after being handled are based on IO multiplexing technique for data transmission after processing to collection terminal TCP port.For the data transferring method of interchanger, including the data transferring method by high concurrent, the UDP message from interchanger is received, and after carrying out multiple threads to UDP message, data after processing are sent to collection terminal.
Description
Technical field
The present invention relates to the data transmission field based on linux kernel, specifically a kind of data transmission of high concurrent
Method and data transferring method for interchanger.
Background technique
With the development of monitoring technology, traffic monitoring is increasingly taken seriously, and traditional scheme is in interchanger or application layer
Traffic monitoring is solved the problems, such as, for needing the demand of statistical result, interchanger seem in this respect again after data calculation processing
It is unable to do what one wishes, need to give the work of data processing into the stronger server of computing capability the application journey to handle, on server
Sequence needs to be sent to collection terminal filing processing after receiving the data of interchanger and processing.If the data of interchanger acquisition sent out
It is sent to server-side, gives application program processing, there are following advantages: on the one hand can reduce the pressure of interchanger, on the other hand
It can make the application of traffic statistics that there is more flexibilities, and the dimension for working out statistics that can be personalized.But also draw simultaneously
Shen comes out a problem: the data packet of interchanger is very more, applies and handles if directly issued, it may appear that data-bag lost
Statistical result is caused to be distorted.
In view of above-mentioned analysis, how EPOLL technology is multiplexed in combining multiple threads by IO, interchanger is answered
It is combined with, data transmit-receive application, data handling utility, acquisition applications, realizes reception, processing and the biography of high concurrent data
It send, is problem to be solved.
Summary of the invention
Technical assignment of the invention is to provide a kind of data transferring method of high concurrent against the above deficiency and for exchanging
The data transferring method of machine, to solve the problems, such as how to realize the reception, processing and transmission of high concurrent data.
In a first aspect, the present invention provides a kind of data transferring method of high concurrent, based on IO multiplexing technique receive come
From UDP (full name in English User Datagram Protocol, translator of Chinese is User Datagram Protocol) data of transmitting terminal, root
Multiple threads are carried out to UDP message according to the acquisition demand of collection terminal, data after being handled will based on IO multiplexing technique
Data transmission is to collection terminal TCP port after processing.
Preferably, the data transferring method of above-mentioned high concurrent includes:
It creates and initializes IO multiplexing epoll example, and monitor kernel events；
When listening to UDP message arriving signal, UDP message is transferred to using buffer area by UDP message receiving thread；
When listening to acquisition notice, the conditional-variable of corresponding data type is broadcasted by main thread, and pass through acquisition notice
Receiving thread activation work thread is obtained by the corresponding UDP message using in buffer area of work thread multi-threading parallel process
Data after to processing；
Data after processing are sent to collection terminal TCP port by data transmission line journey after processing.
Epoll is that linux kernel is to handle high-volume filec descriptor and made improved poll, is multichannel under Linux
It is multiplexed the enhancing version of I/O interface select/poll, it is only a small amount of active in largely concurrently connecting that it can significantly improve program
In the case where system CPU utilization rate；When the event of acquisition, it need not traverse entirely monitored descriptor set, as long as
It traverses those and the descriptor set of Ready queue is added just by the asynchronous wake-up of kernel I/O event；Epoll is in addition to providing
The horizontal triggering (Level Triggered) of that I/O event of select/poll outside, additionally provides edge-triggered (Edge
Triggered), this allows for user space program and is possible to caching I/O state, reduces epoll_wait/epoll_pwait's
It calls, improves application program efficiency.
Preferably, creating and initializing IO multiplexing epoll example, comprising:
According to the classification of transmitting terminal flow, socket, the UDP message receiving thread of UDP message receiving thread are initialized, is
UDP message receiving thread bundling port number, and specific socket is added to event to epoll example；
The socket of collection terminal TCP port is initialized, is socket bundling port, monitors collection terminal TCP port
Socket, and the socket listened to is added into reading event to epoll example, and data transmission line journey after initialization process.
It establishes network communication connection at least to want a pair of of port numbers (socket), socket essence is programming interface (API), right
The encapsulation of TCP/IP, TCP/IP will also be provided and be done interface used in network development for programmer, and here it is Socket programmings to connect
Mouthful.
Preferably, above-mentioned UDP message receiving thread includes that elephant flows UDP message receiving thread, sflow UDP message connects
Take-up journey and delay UDP message receiving thread；After processing data transmission line journey include data transmission line journey after elephant stream process,
Data transmission line journey after data transmission line journey and delay process after sflow processing.
SFlow is a kind of network monitor technology developed jointly by InMon, HP and FoundryNetworks in 2001,
It uses data flow random sampling technique, it is possible to provide the complete second layer to the flow letter within the scope of the 4th layer or even whole network
Breath, the flow analysis being adapted under super large network flow (such as larger than 10Gbit/s) environment allow user to analyze in detail, in real time
The performance of network transmission stream, trend and there are the problem of.
Preferably, above-mentioned epoll example uses edge-triggered.
Preferably, kernel events include readable event, connection event, writeable event occurs and disconnects event, supervise
The kernel events are listened to include:
When listening to readable event, the source of readable event is judged by main thread for operating condition one；
If source exchange machine, UDP message arriving signal is sent to UDP message receiving thread by main thread；
If source collection terminal TCP port, judges by main thread and broadcasts the conditional-variable of corresponding data type, and swashs
Work thread living is to handle UDP message to be sent；
Operating condition two listens to when connection event occurs, main thread receive the acquisition notice sent by collection terminal TCP port and
Acquisition demand if it fails to connect, the socket for receiving acquisition notice is added reading event to epoll example, and continues to monitor
Readable event on the socket of above-mentioned reception acquisition notice；
Operating condition three, when listening to writeable event, kernel buffers are writeable, according to the conditional-variable of corresponding data type, lead to
Know after corresponding processing data after data transmission line journey transmission processing；
Operating condition four listens to when disconnecting event, closes corresponding socket.
Preferably, data after processing are sent to collection terminal TCP port by data transmission line journey after processing, comprising:
After the complete UDP message of work thread process, release data processing finishes signal；
If kernel buffers have been expired, data after the processing that data transmission line journey record has been sent after processing, and
Corresponding socket will be sent, epoll example is added, and monitor writeable event；
When kernel buffers are writeable again, will be counted after processing to be sent by data transmission line journey after corresponding processing
According to being sent to collection terminal TCP port.
Second aspect, the present invention provide a kind of data transferring method for interchanger, comprising:
Interchanger sends UDP message；
By the data transferring method of the described in any item high concurrents of such as first aspect, the UDP number from interchanger is received
According to, and to UDP message carry out multiple threads after, data after processing are sent to collection terminal.
The data transferring method of high concurrent of the invention and data transferring method for interchanger have the advantage that
1, by IO multiplex epoll technology monitor kernel events, can while listening for UDP message reception and for
The transmission of data after processing, multithreading asynchronous process integrate interchanger sampling application and acquisition applications, it is frequent can to solve interchanger
Send the reception bottleneck problem of data；
2, multithreading asynchronous process integrates interchanger sampling application and acquisition applications, based on the received the size of UDP message,
Dynamic allocation space in application buffer area, guarantees that the data entered in kernel buffers are not lost, does not block；
3, socket is in non-plug patterns, and thread will not block on socket influences efficiency, is not yet disposed
The buffer area socket in data, can dynamic registration enter kernel monitoring, then continued in next event monitoring.
Detailed description of the invention
It, below will be to required in being described in embodiment in order to more clearly illustrate the technical solution in the embodiment of the present invention
The attached drawing used is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
The following further describes the present invention with reference to the drawings.
Attached drawing 1 is the flow diagram of the data transferring method of 1 high concurrent of embodiment.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention, the case where not conflicting
Under, the technical characteristic in the embodiment of the present invention and embodiment can be combined with each other.
The embodiment of the present invention provides the data transferring method of high concurrent and the data transferring method for interchanger, for solving
The technical issues of certainly how realizing the reception, processing and transmission of high concurrent data.
Embodiment 1:
As shown in Fig. 1, the data transferring method of high concurrent of the invention is received based on IO multiplexing technique come spontaneous
The UDP message of sending end carries out multiple threads to UDP message according to the acquisition demand of collection terminal, and data after being handled are based on
Data transmission is to collection terminal TCP port after IO multiplexing technique will be handled.
This method comprises the following steps:
S100, creation simultaneously initialize IO multiplexing epoll example, and monitor kernel events；
S200, when listening to UDP message arriving signal, UDP message is transferred to using slow by UDP message receiving thread
Rush area；
S300, when listening to acquisition notice, the conditional-variable of corresponding data type is broadcasted by main thread, and passes through acquisition
It notifies receiving thread to activate work thread, passes through the corresponding UDP number using in buffer area of work thread multi-threading parallel process
According to data after being handled；
S400, data after processing are sent to by collection terminal TCP port by data transmission line journey after processing.
Wherein, it is created in step S100 and initializes IO multiplexing epoll example, including as follows step by step:
S110, according to the classification of transmitting terminal flow, initialize the socket of elephant stream, sflow, delay data, binding end
Mouthful, and specific socket being added into reading event into epoll example, epoll uses edge-triggered, initialization elephant stream,
The udp data receiver thread such as sflow, delay, the corresponding signal that udp data receiver thread waits udp data to reach respectively；
S120, the socket for initializing collection terminal TCP port are socket bundling port, monitor collection terminal TCP port
Socket, and the socket listened to is added into reading event to epoll example, epoll example uses edge-triggered, and initialization is big
As data transmission line journey after data transmission line journey, delay process after data transmission line journey, sflow processing after stream process, after processing
The signal that data transmission line journey waits different classes of data processing to finish respectively.
Kernel events include readable event, connection event, writeable event occur and disconnects event, monitor kernel thing
Part then goes to corresponding processing logic if there is the corresponding event of kernel triggers, and the specific logic that handles specifically includes that
When listening to readable event, the source of readable event is judged by main thread for operating condition one；
(sfow/ elephant stream/delay data) UDP message if source exchange machine, main thread send UDP message to
Up to signal, and UDP message receiving thread (sfow/ elephant stream/delay data thread) is notified to receive UDP message；
If source collection terminal TCP port, data type (sfow/ elephant stream/delay data) is judged by main thread, extensively
The conditional-variable of corresponding data type is broadcast, and notifies that work thread receives received UDP message in thread pool, and handle and will send out
Give the data to be sent of collection terminal；
Operating condition two, when listening to the generation connection event of collection terminal TCP port, main thread is received by collection terminal TCP port
The acquisition of transmission notifies and acquisition demand, if a connection failure, will receive the socket addition reading event of acquisition notice extremely
Epoll example, and continue to monitor the readable event on the socket of above-mentioned reception acquisition notice；
Operating condition three, when listening to writeable event, then kernel buffers are writeable, according to the conditional-variable of corresponding data type,
Notify after corresponding processing data after data transmission line journey transmission processing；
Operating condition four listens to when disconnecting event, closes corresponding socket.
In step S200, UDP message receiving thread (slow udp thread/elephant flows udp thread/delay udp thread) is connect
After receiving UDP message arriving signal, start to receive UDP message, and UDP message is read from kernel buffers using buffering
Area.
In step S300, after main thread receives acquisition notice and acquisition demand, corresponding data categorical variable (slow is judged
Conditional-variable/elephant flows conditional-variable/time delay condition variable), and broadcast conditional-variable (the slow condition change of corresponding data type
Amount/elephant flows conditional-variable/time delay condition variable), the work thread in thread pool is activated, can be corresponding with multiple threads
Using the data in buffer area.
In step S400, data after processing are sent to by collection terminal TCP port by data transmission line journey after processing, including
As follows step by step:
After the complete UDP message of S410, work thread process, release data processing finishes signal；
If S420, kernel buffers are with full, number after the processing that data transmission line journey record has been sent after processing
According to, and corresponding socket will be sent, epoll example is added, and monitor writeable event；
S330, when kernel buffers are writeable again, by data transmission line journey after corresponding processing by place to be sent
Data are sent to collection terminal TCP port after reason.
Embodiment 2:
The present invention provides a kind of data transferring method for interchanger, passes through the data of high concurrent disclosed in embodiment 1
The UDP message that transfer approach desampler is sent, and by work thread concurrent processing data, data after processing are sent to
Collection terminal.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (8)
1. the data transferring method of high concurrent, it is characterised in that receive the UDP number from transmitting terminal based on IO multiplexing technique
According to according to the acquisition demand of collection terminal to UDP message progress multiple threads, data after being handled are multiplexed based on IO
Data transmission is to collection terminal TCP port after technology will be handled.
2. the data transferring method of high concurrent according to claim 1, characterized by comprising:
It creates and initializes IO multiplexing epoll example, and monitor kernel events；
When listening to UDP message arriving signal, UDP message is transferred to using buffer area by UDP message receiving thread；
When listening to acquisition notice, the conditional-variable of corresponding data type is broadcasted by main thread, and receive by acquisition notice
Thread activation work thread is obtained everywhere by the corresponding UDP message using in buffer area of work thread multi-threading parallel process
Data after reason；
Data after processing are sent to collection terminal TCP port by data transmission line journey after processing.
3. the data transferring method of high concurrent according to claim 2, it is characterised in that create and initialize IO multichannel and answer
With epoll example, comprising:
According to the classification of transmitting terminal flow, socket, the UDP message receiving thread of UDP message receiving thread are initialized, is UDP
Data receiver thread bundling port number, and specific socket is added to event to epoll example；
The socket of collection terminal TCP port is initialized, is socket bundling port, monitors the socket of collection terminal TCP port, and
The socket listened to is added into reading event to epoll example, and data transmission line journey after initialization process.
4. the data transferring method of high concurrent according to claim 2, it is characterised in that above-mentioned UDP message receiving thread packet
Include elephant stream UDP message receiving thread, sflow UDP message receiving thread and delay UDP message receiving thread；
After processing data transmission line journey include data transmission line journey after elephant stream process, after sflow processing data transmission line journey and
Data transmission line journey after delay process.
5. the data transferring method of high concurrent according to claim 2, it is characterised in that above-mentioned epoll example uses edge
Triggering.
6. according to the data transferring method of high concurrent described in claim 2,3,4 or 5, it is characterised in that kernel events include can
Reading event occurs connection event, writeable event and disconnects event, monitors kernel events and includes:
When listening to readable event, the source of readable event is judged by main thread for operating condition one；
If source exchange machine, UDP message arriving signal is sent to UDP message receiving thread by main thread；
If source collection terminal TCP port, judges by main thread and broadcasts the conditional-variable of corresponding data type, and activates
Work thread is to handle UDP message to be sent；
Operating condition two listens to when connection event occurs, and main thread receives the acquisition sent by collection terminal TCP port and notifies and acquisition
Demand if it fails to connect, the socket for receiving acquisition notice is added reading event to epoll example, and continues to monitor above-mentioned
Receive the readable event on the socket of acquisition notice；
Operating condition three, when listening to writeable event, kernel buffers are writeable, according to the conditional-variable of corresponding data type, notice pair
Data after data transmission line journey transmission processing after the processing answered；
Operating condition four listens to when disconnecting event, closes corresponding socket.
7. according to the data transferring method of high concurrent described in claim 2,3,4 or 5, it is characterised in that pass through data after processing
It sends thread and data after processing is sent to collection terminal TCP port, comprising:
After the complete UDP message of Work thread process, release data processing finishes signal；
If kernel buffers have been expired, data after the processing that data transmission line journey record has been sent after processing, and will hair
It send corresponding socket that epoll example is added, and monitors writeable event；
When kernel buffers are writeable again, data after processing to be sent are sent out by data transmission line journey after corresponding processing
It send to collection terminal TCP port.
8. being used for the data transferring method of interchanger, characterized by comprising:
Interchanger sends UDP message；
By the data transferring method of such as described in any item high concurrents of claim 1-7, the UDP number from interchanger is received
According to, and to UDP message carry out multiple threads after, data after processing are sent to collection terminal.
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Address after: 250100 No. 1036 Tidal Road, Jinan High-tech Zone, Shandong Province, S01 Building, Tidal Science Park Applicant after: Inspur cloud Information Technology Co.,Ltd. Address before: 250100 No. 1036 Tidal Road, Jinan High-tech Zone, Shandong Province, S01 Building, Tidal Science Park Applicant before: Tidal Cloud Information Technology Co.,Ltd. Address after: 250100 No. 1036 Tidal Road, Jinan High-tech Zone, Shandong Province, S01 Building, Tidal Science Park Applicant after: Tidal Cloud Information Technology Co.,Ltd. Address before: 250100 S06 tower, 1036, Chao Lu Road, hi tech Zone, Ji'nan, Shandong. Applicant before: SHANDONG INSPUR CLOUD INFORMATION TECHNOLOGY Co.,Ltd. |
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