CN103618738A - Intelligent load distribution system and method for achieving TCP long connection and communication - Google Patents
Intelligent load distribution system and method for achieving TCP long connection and communication Download PDFInfo
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Abstract
The invention provides an intelligent load distribution system and method for achieving TCP long connection and communication. The system comprises a load flow distribution server, a TCP communication server basic information management module, a TCP long connection and communication module and a data storage server, wherein the load flow distribution server is used for calculating the IP address of a TCP long connection and communication server which is best suitable for carrying out TCP long connection at present and distributing TCP server ports to clients; the TCP communication server basic information management module is used for setting basic information for a communication server, the TCP long connection and communication server and the number of allowable connections and the maximum offset information of the ports; the TCP long connection and communication module is used for dynamically calculating current loads and the number of allowable connections of the TCP long connection and communication server according to the set information of the number of connections of the TCP long connection and communication server; the data storage server is used for storing client information, service logic data, server basic information and user information. The intelligent load distribution system and method can achieve TCP long connection and communication through horizontal extension, TCP connection request dynamic allocation, server resource self-definition setting and real-time monitoring of the server loads.
Description
Technical field
The present invention relates to network communications technology field, be specifically related to a kind of long load intelligent dispensing system and the method that connects communication of TCP of realization.
Background technology
In the long connection mode of TCP, if connecting client directly carries out TCP communication server IP address, TCP communication port hard coded rather than carries out dynamic assignment by communications platform interface, the server that causes communications platform can not be brought into play to the advantage of load balancing and horizontal extension, the rising that simultaneously connects client terminal quantity may cause server directly when machine maybe cannot accept to connect the TCP connection request that client newly increases, also cannot accurately calculate each Service Instance or hardware server current active on-line joining process line, system resources consumption and present load.
Summary of the invention
The object of the invention is in conjunction with HTTP, TCP/IP procotol, provide realization can horizontal extension, long load intelligent dispensing system and the method that connects communication of TCP that realize of TCP connection request dynamic assignment, the self-defined setting of server resource, server load monitoring in real time.
The present invention is achieved through the following technical solutions:
One aspect of the present invention provides the long load intelligent dispensing system that connects communication of a kind of TCP of realization, comprising:
Load bridging server, for the interface service based on Http agreement is provided, the long TCP linking number of the communication server, the service logic of load calculation of connecting of this interface interchange TCP, calculates the IP address of the long connection of the TCP communication server of the most applicable current TCP of carrying out connection, the client that TCP serve port is distributed to connection;
TCP communication server Basic Information Management module, for arranging the long Back ground Information and the long permission linking number that is connected the communication server and port of TCP, maximum offset information that connects the communication server of TCP;
The long communication module that connects of TCP, for the long connection of the TCP communication service that provides client to connect, according to messaging protocol, carry out corresponding business logic processing, the linking number information that connects the communication server according to the TCP length arranging, connects the long linking number that connects communication server present load and permission of dynamic calculation TCP when setting up, disconnect, breaking in client;
Data storage server, for storing and applying relevant client-side information, service logic data, server basis information, user profile.
Further, described load bridging server comprises by Http service interface realizes the long load equalizer that connects communication service of TCP, and be provided with unblock, with the event scheduling model of priority, described load equalizer is processed all load balancing task assignment, interprocess communication by this scheduling model.
Further, realizing the long load intelligent dispensing system that connects communication of TCP also comprises:
Security authentication module, for carrying out safety certification to user profile, client-side information, service switch-in information.
Intelligent monitored control module, for when monitoring service container and occur thread suspension or access delay, restarts this service container in time.
Intrusion detection module, for state the early warning in time of monitoring server and network.
The present invention provides a kind of long load smart allocation method that connects communication of TCP of realization on the other hand, comprising:
Load bridging server receives the TCP connection request that client sends;
The long TCP linking number of the communication server, the service logic of load calculation of connecting of Http interface interchange TCP that load bridging server provides, calculates the IP address of the long connection of the TCP communication server of the most applicable current TCP of carrying out connection, the described client that TCP serve port is distributed to connection;
The long communication server that connects of TCP, when not reaching the side-play amount of setting, is set up TCP with client current linking number in also update server list, the Http interface interchange providing for described load bridging server is provided;
While connecting with client, the long communication server that is connected of TCP has reached on linking number and has prescribed a time limit, and the long connection server feedback message of TCP is to client, and the Http service interface being provided by client-requested load bridging server is redistributed;
TCP is long connect the communication server and client be connected disconnection, while breaking, current linking number in update server list, the Http interface interchange providing for described load bridging server.
Further, load bridging server load is excessive increases load bridging server with load sharing and registers new server address to carry out new load allocation rule;
The long excessive TCP length that increases of communication server load that connects of TCP connects the communication server, and the parameter of the new server of middle increase is set in information, is carried out the distribution of client connection resource by Http service interface according to new server list;
When data storage server load is excessive, increase data storage server, and Update Table storage server Configuration load bridging, the storage of data hash.
Further, realizing the long load smart allocation method that connects communication of TCP also comprises:
Safety certification step: user profile, client-side information, service switch-in information are carried out to safety certification.
Intelligent monitoring step: when monitoring service container and occur thread suspension or access delay, restart in time this service container.
Intrusion detection step: the state of monitoring server and network early warning in time.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) by setting up TCP and first pass through Http interface before being connected and grow link address and port to communications platform request TCP connecting client and communications platform, the server address that is calculated present load amount minimum by communications platform is with port and distribute to TCP and be connected client, and realizing communications platform can horizontal extension, TCP connection request dynamic assignment;
(2), based on computer network with standard network protocol such as Http, TCP, be applicable to any client that possesses network connection and realize corresponding communication protocol;
(3) for client provides unified interface service and technical specification, and the information that returns to client adopts XML or the JSON data interchange format of standard, and client only need be identified the data format of agreement, has reduced the development amount of client;
(4) be supported in the environment of VPN (virtual private network) and connect, make the network of client and server and public network realize isolation, the fail safe that has improved network;
(5) client has been carried out to access rights and the information interaction security that safety certification has been guaranteed client;
(6) be provided with intelligent monitored control module, for stability and the accessibility of the service container of each bearing interface of server; When monitoring certain service container and occur thread suspension or access delay, intelligent monitored control module is restarted this service container in time, guarantees stability and the reliability of interface;
(7) be provided with intrusion detection module, for the health status of monitoring server and network; If server or network occur abnormal, intrusion detection module sends mail or SMS automatically to system operation management personnel, guarantees repairing extremely as early as possible of server or network;
(8) described Http service interface, TCP communication service adopt the development language of pure Java6, have good compatibility, can compatible Linux/Windows/Unix/Solaris etc. operating system.
Accompanying drawing explanation
Fig. 1 is the long structural representation that connects the load intelligent dispensing system of communication of the TCP of realization of the present invention;
Fig. 2 is the long configuration diagram that connects the load intelligent dispensing system of communication of the TCP of realization of the present invention;
Fig. 3 is the long schematic flow sheet that connects the load smart allocation method of communication of the TCP of realization of the present invention;
Fig. 4 is the long load intelligent dispensing system of communication and the implementation process schematic diagram of method of connecting of the TCP of realization of the present invention.
Embodiment
Below in conjunction with accompanying drawing, specifically illustrate embodiments of the present invention, accompanying drawing is only for reference and use is described, does not form the restriction to scope of patent protection of the present invention.
As shown in Figure 1, in the present embodiment, one aspect of the present invention provides the long load intelligent dispensing system that connects communication of a kind of TCP of realization, comprising:
Load bridging server, for the interface service based on Http agreement is provided, the long TCP linking number of the communication server, the service logic of load calculation of connecting of described interface interchange TCP, calculates the IP address of the long connection of the TCP communication server of the most applicable current TCP of carrying out connection, the client that TCP serve port is distributed to connection;
TCP communication server Basic Information Management module, based on Web mode, for TCP is long, connect the communication server Basic Information Management module is provided, for the long Back ground Information and the long permission linking number that is connected the communication server and port of TCP that connects the communication server of TCP is set, maximum offset information, maximum offset is, on the specified linking number basis of the long connection of the TCP communication server, a linking number buffering range is set, thereby will allow linking number to be defined as the value that specified linking number deducts maximum offset; For example, it is 2500 that keeper arranges permission linking number according to server load, maximum offset is 500, while connecting with client, the long communication server that is connected of TCP has reached while allowing the linking number upper limit 2500, the long connection server trigger event of TCP feedback message are to client, and the Http service interface being provided by client-requested load bridging server is redistributed;
The long communication module that connects of TCP, for the long connection of the TCP communication service that provides client to connect, according to messaging protocol, carry out corresponding business logic processing, the linking number information that connects the communication server according to the TCP length arranging, connects the long linking number that connects communication server present load and permission of dynamic calculation TCP when setting up, disconnect, breaking in client;
Data storage server, based on NoSQL databases such as the relevant databases such as MySQL, MsSQL, Oracle or MongoDB, provide data storage service, for storing and applying relevant client-side information, service logic data, server basis information, user profile etc.
In an embodiment of the present invention, realize the long load intelligent dispensing system that connects communication of TCP and also comprise WEB administration module, by Http agreement, carry out client-side information mutual, inquire about, manage, monitor, arrange server, client ends relative.
Described data storage server reduces the number of times of reading database by data cached in internal memory and object in conjunction with Memcached distributed memory database, thereby improve the pressure of database concurrency, minimizing database server; Aspect server hardware, use disk RAID5 and Overall Thermal Preparation Method save data, guarantee the stable operation of the safe and reliable of service data and server disk array.
In the TCP length that realizes of the present invention, connect in the load intelligent dispensing system of communication, can in the environment of VPN (virtual private network), set up TCP connects, make the network of client and the communication server and public network realize isolation < as the APN network G reatT.GreaT.GT of the tunnel protocols such as GRE or L2TP, and communication each time can be passed through encryption, make the network safety and reliability of client and the communication server, also can set up TCP connection at the mobile public networks such as 3G, Internet network and realize TCP communication.
In an embodiment of the present invention, described client and the communication server communicates by letter based on TCP/IP, http protocol.The load intelligent dispensing system that the described TCP of realization is long connects communication based on ICP/IP protocol, in conjunction with Http agreement, realize horizontal extension and the load distribution of TCP service.
In an embodiment of the present invention, described load bridging server comprises by Http service interface realizes the long load equalizer that connects communication service of TCP, and be provided with unblock, with the event scheduling model of priority, described load equalizer is processed all load balancing task assignment, interprocess communication by this scheduling model, the assurance of high reliability and the assurance of message communicating stability of TCP communication are provided, solved the single-point Dependence Problem of the TCP communication server, in conjunction with the mutually standby principle of two-shipper, can realize the redundancy backup of the TCP communication server.
In an embodiment of the present invention, realizing the long load intelligent dispensing system that connects communication of TCP also comprises:
Security authentication module, is arranged in the Http interface server of load bridging server, for user profile, client-side information, service switch-in information are carried out to safety certification.In information interactive process, information is encrypted and authentication processing, guarantee fail safe and the integrality of information in transmitting procedure.
Intelligent monitored control module, for monitoring stability and the accessibility of the service container of each Http interface carrying; When monitoring service container and occur thread suspension or access delay, restart in time this service container and revise corresponding service interface or TCP communication socket, guarantee stability and the reliability of interface.
Intrusion detection module, for state the early warning in time of monitoring server and network; If server or network occur abnormal, intrusion detection module sends mail or SMS automatically to operation management personnel, guarantees repairing extremely as early as possible of server or network.For example, if network suffers illegal invasion or Brute Force etc., the anti-software of invading adds blacklist list to ensure the safety of server and network visitor; If the server that hardware device etc. cause, network failure, network O&M administrative staff also can know the current node breaking down and reason the very first time, and backup server will be taken over corresponding service simultaneously.
Consider that the TCP of realization length of the present invention connects the concurrent carrying of the load intelligent dispensing system of communication, support level expansion, avoids the basal needs such as Single Point of Faliure, in the present embodiment, adopt each service that the mode of service is externally provided by a plurality of Application Instances or a plurality of hardware server example, as shown in Figure 2:
TCP is long connects communication service by T1, T2, T3 ... .Tn wait N Application Instance or hardware server example to form, Http load bridging is served by H1, H2, H3 ... the N such as a Hn Application Instance or hardware server example form; Identifier declaration in Fig. 2 is as follows:
C1, C2, C3 represent to set up the long client being connected of TCP with server;
H1, H2, H3 represent to provide Http software instances or the hardware server of load bridging service;
T1, T2, T3 represent to provide software instances or the hardware server of TCP Connection Service;
D1, D2, D3 represent to provide relation or the non-relational data base management system of data information memory, management;
The advantage arranging is like this: the arbitrary node of same service breaks down while maybe needing to restart application, and service still can normally move; If concurrency increases, performance becomes bottleneck, can solve concurrent load by horizontal extension; Http load bridging service dynamic calculation each application or server load, guarantee that system stability provides service reliably.
The long crucial implementation process that connects the load intelligent dispensing system of communication of the TCP of realization of the present invention is: dynamically arrange each Application Instance of TCP communications platform or hardware server maximum number of connections, side-play amount; Current linking number, the residue linking number of enlivening of each Application Instance of dynamic calculation communication platform or hardware server; By Http interface, dynamically for connecting client, distribute the lightest TCP Communications service example of present load.
As shown in Figure 3, the present invention provides a kind of long load smart allocation method that connects communication of TCP of realization on the other hand, comprising:
Load bridging server receives the TCP connection request that client sends;
The long TCP linking number of the communication server, the service logic of load calculation of connecting of Http interface interchange TCP that load bridging server provides, calculates the IP address of the long connection of the TCP communication server of the most applicable current TCP of carrying out connection, the described client that TCP serve port is distributed to connection;
The long communication server that connects of TCP, when not reaching the side-play amount of setting, is set up TCP with client current linking number in also update server list, the Http interface interchange providing for described load bridging server is provided;
While connecting with client, the long communication server that is connected of TCP has reached on linking number and has prescribed a time limit, and the long connection server feedback message of TCP is to client, and the Http service interface being provided by client-requested load bridging server is redistributed;
TCP is long connect the communication server and client be connected disconnection, while breaking, current linking number in update server list, the Http interface interchange providing for described load bridging server.
Shown in Fig. 2, in an embodiment of the present invention, load bridging server load is excessive to be increased load bridging server with load sharing and registers new server address to carry out new load allocation rule;
The long excessive TCP length that increases of communication server load that connects of TCP connects the communication server, and the parameter of the new server of middle increase is set in information, is carried out the distribution of client connection resource by Http service interface according to new server list;
When data storage server load is excessive, increase data storage server, and Update Table storage server Configuration load bridging, the storage of data hash.
In an embodiment of the present invention, realizing the long load smart allocation method that connects communication of TCP also comprises:
Safety certification step: user profile, client-side information, service switch-in information are carried out to safety certification.
Intelligent monitoring step: when monitoring service container and occur thread suspension or access delay, restart in time this service container and revise corresponding service interface or TCP communication socket.
Intrusion detection step: the state of monitoring server and network early warning in time.
As shown in Figure 4, the load intelligent dispensing system of the long connection communication of the TCP of realization provided by the invention and the specific implementation process of method are: the information in system arranges in function, by WEB mode, provide the long connection server list of current existing TCP (IP address is set, online user's list buffer memory KEY value, port, current linking number, the maximum threshold values of linking number, side-play amount) and be recorded in data storages shared region, client need to be with TCP service generation TCP during long connection, need to first access Http service interface, by this interface, be that client is distributed the most applicable current long server address connecting of TCP of setting up, port, the long Connection Service of TCP is set up TCP with client and is connected current linking number in also update server list when not reaching the side-play amount of setting, if because client produce the connection time difference, problem caused connecting time TCP long connection server reached the connection upper limit, by the long connection server feedback message of TCP to client, by client-requested Http service interface, redistributed, like this, just obtained realizing the long technique effect that connects the horizontal extension of the load intelligent dispensing system of communicating by letter of TCP.TCP is long connect the communication server and client be connected disconnection, while breaking, current linking number in update server list, client-requested Http service interface divides timing, current linking number in the server list after the Http interface interchange that described load bridging server provides upgrades.
Above-described embodiment is preferably execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. realize the long load intelligent dispensing system that connects communication of TCP, it is characterized in that, comprising:
Load bridging server, for the interface service based on Http agreement is provided, the long TCP linking number of the communication server, the service logic of load calculation of connecting of this interface interchange TCP, calculates the IP address of the long connection of the TCP communication server of the most applicable current TCP of carrying out connection, the client that TCP serve port is distributed to connection;
TCP communication server Basic Information Management module, for arranging the long Back ground Information and the long permission linking number that is connected the communication server and port of TCP, maximum offset information that connects the communication server of TCP;
The long communication module that connects of TCP, for the long connection of the TCP communication service that provides client to connect, according to messaging protocol, carry out corresponding business logic processing, the linking number information that connects the communication server according to the TCP length arranging, connects the long linking number that connects communication server present load and permission of dynamic calculation TCP when setting up, disconnect, breaking in client;
Data storage server, for storing and applying relevant client-side information, service logic data, server basis information, user profile.
2. the TCP length that realizes according to claim 1 connects the load intelligent dispensing system of communicating by letter, it is characterized in that: described load bridging server comprises by Http service interface realizes the long load equalizer that connects communication service of TCP, and be provided with unblock, with the event scheduling model of priority, described load equalizer is processed all load balancing task assignment, interprocess communication by this scheduling model.
3. the long load intelligent dispensing system that connects communication of TCP of realizing according to claim 1, is characterized in that, also comprises:
Security authentication module, for carrying out safety certification to user profile, client-side information, service switch-in information.
4. the long load intelligent dispensing system that connects communication of TCP of realizing according to claim 1, is characterized in that, also comprises:
Intelligent monitored control module, for when monitoring service container and occur thread suspension or access delay, restarts this service container in time.
5. the long load intelligent dispensing system that connects communication of TCP of realizing according to claim 1, is characterized in that, also comprises:
Intrusion detection module, for state the early warning in time of monitoring server and network.
6. realize the long load smart allocation method that connects communication of TCP, it is characterized in that, comprising:
Load bridging server receives the TCP connection request that client sends;
The long TCP linking number of the communication server, the service logic of load calculation of connecting of Http interface interchange TCP that load bridging server provides, calculates the IP address of the long connection of the TCP communication server of the most applicable current TCP of carrying out connection, the described client that TCP serve port is distributed to connection;
The long communication server that connects of TCP, when not reaching the linking number side-play amount of setting, is set up TCP with client current linking number in also update server list, the Http interface interchange providing for described load bridging server is provided;
While connecting with client, the long communication server that is connected of TCP has reached on linking number and has prescribed a time limit, and the long connection server feedback message of TCP is to client, and the Http service interface being provided by client-requested load bridging server is redistributed;
TCP is long connect the communication server and client be connected disconnection, while breaking, current linking number in update server list, the Http interface interchange providing for described load bridging server.
7. the TCP length that realizes according to claim 6 connects the load smart allocation method of communicating by letter, and it is characterized in that:
Load bridging server load is excessive to be increased load bridging server with load sharing and registers new server address to carry out new load allocation rule;
The long excessive TCP length that increases of communication server load that connects of TCP connects the communication server, and the parameter of the new server of middle increase is set in information, is carried out the distribution of client connection resource by Http service interface according to new server list;
When data storage server load is excessive, increase data storage server, and Update Table storage server Configuration load bridging, the storage of data hash.
8. the long load smart allocation method that connects communication of TCP that realizes according to claim 6, is characterized in that, also comprises:
Safety certification step: user profile, client-side information, service switch-in information are carried out to safety certification.
9. the long load smart allocation method that connects communication of TCP that realizes according to claim 6, is characterized in that, also comprises:
Intelligent monitoring step: when monitoring service container and occur thread suspension or access delay, restart in time this service container.
10. the long load smart allocation method that connects communication of TCP that realizes according to claim 6, is characterized in that, also comprises:
Intrusion detection step: the state of monitoring server and network early warning in time.
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