CN108696598B - A method and device for transparently transmitting messages received by a stateless service through a long connection under a microservice architecture - Google Patents
A method and device for transparently transmitting messages received by a stateless service through a long connection under a microservice architecture Download PDFInfo
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- CN108696598B CN108696598B CN201810834418.0A CN201810834418A CN108696598B CN 108696598 B CN108696598 B CN 108696598B CN 201810834418 A CN201810834418 A CN 201810834418A CN 108696598 B CN108696598 B CN 108696598B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
- H04L67/5682—Policies or rules for updating, deleting or replacing the stored data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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Abstract
本发明公开了一种微服务架构下将无状态服务接收到的消息通过长连接透传的方法和装置，所述方法包括：透传服务器收到消息后根据协议内容判断本条消息是否是本次通信的第一条消息；如果是第一条消息，透传服务器与目标服务器建立长连接并将连接句柄缓存至当前透传服务器内存中；将当前透传服务器的地址信息缓存至缓存服务器；透传服务器通过长连接向目标服务器发送消息数据，以便目标服务器向终端回复消息。通过将透传服务独立出来，在首次建立长连接时将当前透传服务地址信息缓存至外部服务器，当应用服务器准备透传时，可以根据缓存服务器找到对应的透传服务器地址，并在该透传服务器内找到句柄，从而实现消息的透传。
The invention discloses a method and a device for transparently transmitting a message received by a stateless service through a long connection under a micro-service architecture. The first message of communication; if it is the first message, the transparent transmission server establishes a long connection with the target server and caches the connection handle in the memory of the current transparent transmission server; caches the address information of the current transparent transmission server to the cache server; The transmission server sends message data to the target server through a persistent connection, so that the target server can reply the message to the terminal. By separating the transparent transmission service, the current transparent transmission service address information is cached to the external server when a persistent connection is established for the first time. The handle is found in the transmission server, so as to realize the transparent transmission of the message.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a method and a device for transmitting messages received by stateless services through long connection under a micro-service architecture.
Background
Microservice is an emerging software architecture that splits a large single application and service into tens of supporting microservices. One of the biggest advantages of microservice applications is that they tend to utilize computing resources more efficiently than traditional applications. Since they deal with the functional bottleneck problem by extending components. In this way, the developer need only deploy computing resources for the additional components, rather than deploying a completely new iteration of a complete application. The end result is that more resources are available to other tasks.
As an IOT platform, most customers want to implement the requirement that data transmitted by a terminal can be transparently transmitted to an own service system for data processing through the platform, so as to implement communication between the service system and the terminal. The IOT platform has high requirements on the performance and stability of the platform due to large data volume, and the current mainstream micro-service architecture can well meet the requirements of the system on the aspect.
Under the micro-service architecture, a plurality of stateless services exist for receiving messages sent by a terminal, and the messages need to be sent to a target server through the same long connection, so that after a message is received on a service A and a long connection C is established with the target server for data transparent transmission, when a service B receives the message again and wants to use the long connection C for transparent transmission, a handle of the long connection C cannot be obtained in the service B, and data transparent transmission cannot be realized.
Disclosure of Invention
The invention aims to provide a method and a device for transparently transmitting messages received by stateless services through long connection under a micro-service architecture, and solve the problem that a plurality of stateless service messages cannot be transparently transmitted to a target server through the same long connection.
In order to achieve the above object, in a first aspect, the present invention provides a method for transparently transmitting a message received by a stateless service through a long connection under a micro service architecture, including:
after receiving the message, the transparent transmission server judges whether the message is the first message of the communication according to the protocol content;
if the message is the first message, the transparent transmission server establishes long connection with the target server and caches the connection handle to the memory of the current transparent transmission server; caching the address information of the current transparent transmission server to a cache server;
and the transparent transmission server sends message data to the target server through the long connection so that the target server can reply messages to the terminal.
Optionally, before the transparent transmission server determines whether the message is the first message of the communication according to the protocol content after receiving the message, the method further includes:
the terminal sends a message to an application server;
the application server analyzes the message and judges whether the message is the first message of the communication according to the protocol content;
if the message is the first message, cleaning a history cache corresponding to the current terminal in the cache server, and then selecting a transparent transmission server to send the message;
if the message is not the first message, the address information of the transparent transmission server cached in the communication process is firstly obtained from the cache server, and then the message is sent to the address of the transparent transmission server corresponding to the address information for communication.
Optionally, the selecting of one transparent transmission server is performed through load balancing.
Optionally, the address information includes an IP and port information of the transparent transmission server.
In a second aspect, an embodiment of the present invention provides an apparatus for transparently transmitting a message received by a stateless service through a long connection under a micro service architecture for implementing the method in the first aspect, where the apparatus includes:
the first judging unit is used for judging whether the message is the first message of the communication according to the protocol content after the message is received by the transparent transmission server;
the cache unit is used for establishing long connection between the transparent transmission server and the target server and caching the connection handle into the memory of the current transparent transmission server if the message is the first message; caching the address information of the current transparent transmission server to a cache server;
and the long connection sending unit is used for sending the message data to the target server through the long connection by the transparent transmission server so that the target server can reply the message to the terminal.
Optionally, before the unvarnished transmission server determines whether the message is the first message of the communication according to the protocol content after receiving the message, the apparatus further includes:
the terminal sending unit is used for sending a message to the application server by the terminal;
the second judgment unit is used for analyzing the message by the application server and judging whether the message is the first message of the communication according to the protocol content;
the selection unit is used for clearing the history cache corresponding to the current terminal in the cache server and then selecting a transparent transmission server to send the message if the message is the first message;
and the application server sending unit is used for firstly obtaining the cached transparent transmission server address information in the communication process from the cache server and then sending a message to the transparent transmission server address corresponding to the address information for communication if the message is not the first message.
Optionally, the selecting of one transparent transmission server is performed through load balancing.
Optionally, the address information includes an IP and port information of the transparent transmission server.
The method and the device for transparently transmitting the message received by the stateless service through the long connection under the micro-service architecture provided by the invention have the advantages that the transparently transmitting service is independent, the current transparently transmitting service address information is cached to an external server when the long connection is established for the first time, when the application server prepares for the transparent transmission, the corresponding transparently transmitting server address can be found according to the cache server, and the handle is found in the transparently transmitting server, so that the transparent transmission of the message is realized.
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Fig. 1 is an interaction flowchart of a method for transparently transmitting a message received by a stateless service through a long connection under a micro service architecture according to an embodiment of the present invention;
fig. 2 is a structural diagram of a device for transmitting a message received by a stateless service through a long connection under a micro service architecture according to an embodiment of the present invention.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand and to implement the present invention, and are not intended to limit the scope of the present invention in any way.
Although the present application provides the method operation steps or apparatus structures as shown in the following embodiments or figures, more or less operation steps or module units after partial combination may be included in the method or apparatus based on conventional or non-inventive labor. In the case of steps or structures which do not logically have the necessary cause and effect relationship, the execution sequence of the steps or the module structure of the apparatus is not limited to the execution sequence or the module structure shown in the embodiment or the drawings of the present application. When the described method or module structure is applied to a device, a server or an end product in practice, the method or module structure according to the embodiment or the figures may be executed sequentially or in parallel (for example, in a parallel processor or multi-thread processing environment, or even in an implementation environment including distributed processing and server clustering).
Interpretation of terms:
micro-service: an emerging software architecture is to split a large single application and service into tens of supporting microservices. One of the biggest advantages of microservice applications is that they tend to utilize computing resources more efficiently than traditional applications. Since they deal with the functional bottleneck problem by extending components. In this way, the developer need only deploy computing resources for the additional components, rather than deploying a completely new iteration of a complete application. The end result is that more resources are available to other tasks. Therefore, the application program corresponding to the service described in the embodiment of the present invention refers to a micro service application.
Stateless services: for the processing of a single request, it does not depend on other requests, i.e. all the information required for processing one request is either contained in the request or is accessible from outside (say a database), and the server itself does not store any information. In the following description of the present embodiment, the message (request) received by the application server is a request message under stateless service.
Long connection: it means that a plurality of data packets can be continuously transmitted on one connection, and if no data packet is transmitted during the connection holding period, a link detection packet needs to be transmitted by two parties.
As shown in fig. 1, a method for transparently transmitting a message received by a stateless service through a long connection under a micro service architecture provided in an embodiment of the present invention includes the following steps:
s1: the terminal sends a message to the application server.
The terminal may be any user terminal, including but not limited to a mobile phone, a tablet computer, a personal computer, a wearable device, and the like.
S2: the application server analyzes the message and judges whether the message is the first message of the communication according to the protocol content.
S3: if the message is the first message, the historical cache corresponding to the current terminal in the cache server is cleared, and then a transparent transmission server is selected to send the message.
On one hand, the clear history cache reserves a storage space for the address information (see step S6 below) stored next by the transparent transmission server, and can also avoid that the application server is interfered by the cache information when the message is sent again (step S4), which results in an error in searching the address of the transparent transmission server or a reduction in searching efficiency.
In step S3, a transparent transmission server may be selected by using a load balancing rule, and specifically, a transparent transmission server with more computing resources, that is, less load pressure, may be selected to balance the role of the messaging computing resources.
S4: if the message is not the first message, the IP and the port information of the transparent transmission server cached in the communication process are firstly obtained from the cache server, and then the message is sent to the transparent transmission server address corresponding to the IP and the port for communication. The step S4 is executed when the passthrough server has saved the address information to the cache server in the step S6. That is, step S6 described later, follows step S3, and when there is a first message, the address information is saved in the cache server so that the message is sent again, step S4 is performed.
S5: and after receiving the message, the transparent transmission server judges whether the message is the first message of the communication according to the protocol content. In this embodiment, if it is determined in step S3 that the first message of the current communication is the first message of the current communication, then in step S5, the determination result corresponds to the first message of the current communication.
S6: if the message is the first message: the transparent transmission server establishes long connection with a target server and caches a connection handle to the memory of the current transparent transmission server; and caching the IP and the port of the current transparent transmission server to a cache server.
In step S6, the handle for establishing the long connection is cached in the current transparent transmission server, and when the transparent transmission server receives the message to be transparent again, the handle can be directly acquired from the local, thereby solving the problem that the handle cannot be found when transparent transmission is performed again. And caching the IP and the port of the current transparent transmission server to a cache server so that the application server can quickly find the address of the transparent transmission server from an external cache server in the next transparent transmission.
S7: and the transparent transmission server sends message data to the target server through the long connection.
After the handle is obtained, the transparent transmission server directly sends the received message to the target server, and the target server responds.
S8: and the target server replies a message to the terminal.
And after the target server responds, the reply message is finally returned to the terminal through the transparent transmission server and the application server in sequence.
The embodiment of the present invention further provides a device for transparently transmitting a message received by a stateless service through a long connection under a micro service architecture for implementing the method, as shown in fig. 2, the device includes:
the first judging unit is used for judging whether the message is the first message of the communication according to the protocol content after the message is received by the transparent transmission server;
the cache unit is used for establishing long connection between the transparent transmission server and the target server and caching the connection handle into the memory of the current transparent transmission server if the message is the first message; caching the address information of the current transparent transmission server to a cache server;
and the long connection sending unit is used for sending the message data to the target server through the long connection by the transparent transmission server so that the target server can reply the message to the terminal.
Optionally, before the unvarnished transmission server determines whether the message is the first message of the communication according to the protocol content after receiving the message, the apparatus further includes:
the terminal sending unit is used for sending a message to the application server by the terminal;
the second judgment unit is used for analyzing the message by the application server and judging whether the message is the first message of the communication according to the protocol content;
the selection unit is used for clearing the history cache corresponding to the current terminal in the cache server and then selecting a transparent transmission server to send the message if the message is the first message;
and the application server sending unit is used for firstly obtaining the cached transparent transmission server address information in the communication process from the cache server and then sending a message to the transparent transmission server address corresponding to the address information for communication if the message is not the first message.
Optionally, the selecting of one transparent transmission server is performed through load balancing.
Optionally, the address information includes an IP and port information of the transparent transmission server.
The flow executed by the above units corresponds to steps S1-S8 in the method embodiment, and for a more specific implementation, reference may be made to the corresponding description of the steps in the method, which is not repeated herein.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The integrated unit in the above embodiments, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in the above computer-readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing one or more computer devices (which may be personal computers, servers, network devices, etc.) to execute all or part of the steps of the method according to the embodiments of the present invention.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
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