TWI720113B - Method and device for processing telegrams - Google Patents

Abstract

The embodiments of the present application provide a method and device for processing a message. The message processing method includes: receiving a first message sent by a sender; when the first message is a specified type of message, searching for a pre-stored result whether there is a first result that matches the first message; if so , Then send the first result to the sender. The embodiment of this application does not directly transmit the message transparently to the back-end server when detecting that the received message is a specified type of message, but first searches for a result that matches the message in the locally pre-stored results, if If the matching result is found, the result will be directly fed back to the sender, instead of transparently transmitting the message to the back-end server, thereby reducing the amount of processing of this type of message by the back-end server and reducing the back-end server. The message processing pressure of the end server. When this method is applied to the HC scenario to the back-end server, the processing pressure of the back-end server to the HC request can be reduced.

Description

Method and device for processing telegrams

This application relates to the field of communication technology, and in particular to a method for processing an electronic message and an electronic message processing device.

In order to quickly and accurately identify the availability of remote services, local applications need to frequently initiate Health Check (HC) requests to remote services to determine whether the remote services are available.

In the large-scale load balancing scenario of cloud computing, the VIP created by the user through the server load balancer (Server Load Balancer, SLB) will be configured on multiple Linux virtual servers (Linux Virtual Server, LVS), in order to ensure To know as accurately as possible whether the back-end server is available, a health check process is started on each LVS to check the back-end server.

Assuming there are m LVSs configured to perform a health check on the back-end server every n seconds, then the back-end server will accept m/n health check requests every second. It can be seen from m/n that the frequency of health check requests received by the user's back-end server is proportional to the number of LVS units, and inversely proportional to the interval of health checks.

In the cloud product environment, the number of LVS will grow with the growth of the number of users and access volume, that is, m is always growing, and users hope to stop LVS from forwarding requests as soon as possible when there is a problem with the back-end server , Then the interval between health checks needs to be shortened, that is, n is reduced. That is to say, the value of m/n will become larger and larger, so that the health check request will put greater pressure on the back-end server. In extreme cases, the back-end server may even become unavailable due to too many health check requests. use.

However, in a cloud environment, controlling the number of HC requests by controlling m or n will limit the scale and flexibility of the service. Among them, controlling the largest m will limit the scale of the LVS cluster, and the way to control n will limit the scale of the LVS cluster. As a result, HC is not sensitive, and problems with back-end services cannot be detected in time.

The purpose of the invention of the embodiments of the present application is to provide a message processing method, which can reduce the processing pressure of the back-end server on the HC request.

Correspondingly, an embodiment of the present application also provides a message processing device to ensure the implementation and application of the above method.

In order to solve the above problems, this application discloses a message processing method, which includes: receiving a first message sent by a sender; when the first message is a specified type of message, searching the pre-stored result whether there is a The first result of the first message matching; if it is, the first result is sent to the sender.

Further, the method further includes: when the first result does not exist in the pre-stored results, sending the first message to the server; receiving the second result fed back by the server; The sender sends the second result.

Further, the method further includes: adding the second result to the pre-stored result.

Further, the searching for the pre-stored result whether there is a first result that matches the first message includes: obtaining the request information and the validity period contained in the first message; and searching for the existence of the pre-stored result The result corresponding to the requested information; if it exists, it is determined whether the result meets the validity period; if it is, it is confirmed that the result is the first result that matches the first message, if not, it is confirmed that it does not exist The first result.

Further, the method further includes: determining the service availability of the server in the current cycle based on a regular health check performed on a designated port or service program of the server; and generating a detected data based on the service availability in the current cycle As a result, the results are stored.

Further, the request information includes request type, destination IP address and destination port.

Further, the specified type of telegram is a health check HC request telegram.

The application also discloses a message processing device, which includes: a message receiving unit configured to receive a first message sent by a sender; and a result searching unit configured to perform a message in advance when the first message is a specified type of message. The stored results search for whether there is a first result matching the first message; the result feedback unit is configured to send to the first result when the search unit finds that the first result matches the first message The party sends the first result.

Further, the device further includes: a sending unit configured to send the first message to a server when the first result does not exist in the pre-stored result; and a result receiving unit configured to receive The second result fed back by the server; the result sending unit is configured to send the second result to the sender.

Further, the device further includes: an adding unit configured to add the second result to the pre-stored result.

Further, the result search unit includes: an extracting subunit configured to obtain the request information and an expiration date contained in the first message; the searching subunit is configured to search for the existence of the request information in the pre-stored result. The result corresponding to the information; the determination subunit is configured to determine whether the result meets the validity period when the result corresponding to the requested information is found in the pre-stored result; if so, confirm that the result is the same as the result The first result of the first message matching, if not, it is confirmed that the first result does not exist.

Further, the device further includes: a service detection unit configured to determine the service availability of the server in the current cycle based on a health check performed on a designated port or service program of the server at regular intervals; and a result storage unit, It is configured to generate a detection result according to the service availability in the current period, and store the result.

Further, the request information includes request type, destination IP address and destination port.

Further, the specified type of telegram is a health check HC request telegram.

Compared with the prior art, the embodiments of the present application include the following advantages: The embodiments of the present application do not directly transparently transmit the text to the back-end server when detecting that the received text is a specified type of text, but first locally The pre-stored results search for the result that matches the message. If a matching result is found, the result will be directly fed back to the sender, instead of transparently transmitting the message to the back-end server, thereby reducing the back-end The server's processing volume of such messages reduces the pressure of the back-end server's message processing. When this method is applied to the HC scenario to the back-end server, the processing pressure of the back-end server to the HC request can be reduced.

501‧‧‧Text receiving unit

502‧‧‧Result search unit

503‧‧‧Result feedback unit

601‧‧‧Sending unit

602‧‧‧Result receiving unit

603‧‧‧Result sending unit

604‧‧‧Additional unit

701‧‧‧Extract subunit

702‧‧‧Find subunit

703‧‧‧Judgment subunit

801‧‧‧Service Testing Unit

802‧‧‧Result storage unit

Figure 1 is a flowchart of the steps of an embodiment of a message processing method of this application; Figure 2 is a flowchart of steps of another embodiment of a message processing method of this application; Figure 3 is a search for existence in the pre-stored results in this application The flow chart of the method embodiment of the first result matching the first message; FIG. 4 is a schematic diagram of the two servers in this application initiating an HC request to the back-end server; FIG. 5 is an embodiment of a message processing device in this application Figure 6 is a structural block diagram of another embodiment of a message processing device of this application; Figure 7 is a structural block diagram of an embodiment of a result search unit in this application; Figure 8 is a message processing of this application A block diagram of the structure of a preferred embodiment of the device.

In order to make the above objectives, features, and advantages of the application more obvious and understandable, the application will be further described in detail below in conjunction with the accompanying drawings and specific implementations.

1, it shows a flowchart of the steps of an embodiment of a method for processing a message according to the present application, which may specifically include the following steps:

Step 101: Receive the first telegram sent by the sender.

In the embodiment of the present application, the device for processing the message (hereinafter referred to as the device) may be the server itself for responding to the message, or a module set inside the server, or set at the front end of the server Independent device and can interact with the server. For example, in the scenario of large-scale load balancing of cloud computing, when each LVS server and Proxy server respectively initiate HC to the back-end server, the device can be the back-end server itself or a built-in module. It can also be an independent device installed in front of the back-end server, such as a Health Check Proxy (HCP).

In this step, the device receives the first message sent by the sender, such as the LVS server or the proxy server, and the first message may be an HC request message.

Step 102: When the first telegram is a designated type of telegram, search the pre-stored results for whether there is a first result matching the first telegram.

After the device receives the first telegram, it first determines whether the telegram is a designated type of telegram based on the telegram type information contained in the first telegram, and if so, searches the pre-stored results for whether there is a match with the first telegram The first result, if not, can perform other corresponding processing based on the message type information, or transparently transmit the message to the back-end server for processing.

Wherein, the specified type of message may specifically be an HC request message. In other application scenarios, the specified type of message may also be a message for which the device needs to reduce the number of messages processed by the back-end server.

The device pre-stores the results associated with the specified types of messages. Wherein, the step of storing the result includes: determining the service availability of the server in the current cycle based on a regular health check performed on the designated port or service program of the server; generating a detection based on the service availability in the current cycle The result of storing the result.

That is, the device can periodically perform an HC on the designated port or service of the back-end server to detect whether the service of the server is available in the current timing period, and correspond to the service of the back-end server in this period based on the detection. Usability generates test results for storage. Or the back-end server performs self-checks based on the trigger timing of the device to determine whether it can provide services in the current timing period, so that the HC result obtained through the detection is the service availability of the back-end server in this period. The HC results are sent to the device for storage. Through the above-mentioned device, the back-end server is controlled to determine the availability of the cycle, that is, the HC result, through only one test in a cycle. Each HC request in the cycle can use the HC result without repeating the check, reducing the back-end The server's processing pressure on HC requests. Wherein, the service refers to a service program running on the server to provide services to the outside. When the received first telegram is an HC request telegram, it is possible to find out whether there is an HC result matching the first telegram in the pre-stored HC results. For details, please refer to the description of the subsequent embodiments.

If the first result matching the first message is found, step 103 is executed.

Step 103: Send the first result to the sender.

This method can not only be applied to the HC scenario of the back-end server, but also can be applied to other scenarios that need to reduce the processing of the same type of messages periodically sent by the back-end server to the sender.

The embodiment of this application does not directly transmit the message transparently to the back-end server when detecting that the received message is a specified type of message, but first searches for a result that matches the message in the locally pre-stored results, if If the matching result is found, the result will be directly fed back to the sender, instead of transparently transmitting the message to the back-end server, thereby reducing the amount of processing of this type of message by the back-end server and reducing the back-end server. The message processing pressure of the end server. When this method is applied to the HC scenario to the back-end server, the processing pressure of the back-end server to the HC request can be reduced.

In another embodiment of the present application, when there is no first result matching the first message among the pre-stored results, as shown in FIG. 2, the method may further include:

Step 201: When the first result does not exist in the pre-stored results, the first message is sent to the server.

Although the back-end server will be periodically checked to obtain the HC results, it is inevitable that there will be some situations that make it impossible to find the matching result when requested. In this case, in order to obtain the matching result in time, the device performs step 102 when searching The result of is that when there is no first result matching the first message among the pre-stored results, the device cannot directly feed back the result to the sender at this time, and the first message needs to be transparently transmitted to the (back-end) server. It is processed by the (backend) server.

Step 202: Receive a second result fed back by the server.

The (back-end) server processes the first message in the existing manner, and returns the second result obtained by the processing to the device.

Step 203: Send the second result to the sender.

After receiving the second result, the device feeds back the second result to the sender.

While the device performs step 203, it can also further perform step 204.

Step 204: Add a second result to the pre-stored results.

The device can add the second result and its associated information, such as the result acquisition time, to the above-mentioned pre-stored result, or update the above-mentioned pre-stored result, so that the second result can be subsequently used to feed back the sender without The (back-end) server repeats the message processing.

In another embodiment of the present application, when the first telegram is a designated type of telegram, the process of searching the pre-stored results for whether there is a first result matching the first telegram, as shown in FIG. 3, may include :

Step 301: Obtain the request information and the validity period contained in the first message.

In this embodiment, the request information may include the request type, destination IP address, and destination port.

Taking the first message as an HC request message as an example, in this embodiment, a byte indicating the type of the HC request message can be added to the HC request message, for example, in the SYN (synchronous) message of the HC request, TCP (Transmission Control Protocol, Transmission control protocol) Add HC type bytes in Option: 198-tcp, 199-http, 200-udp, in addition to the HC request message type, there is also the validity period, ie interval information, indicating how long the HC can be reused result.

After the device receives the first telegram, it obtains the bytes of the HC request telegram type in the first telegram, the interval information, and the RSIP (Real Server IP Address, destination IP address) and RSport ( Real Server port, destination port).

Step 302: Search the pre-stored results for whether there is a result corresponding to the requested information.

The device may pre-store a session table, in which the key is type-RSIP-RSport, and the value is the update result and update time.

In this step, first, according to the byte (type) of the HC request message type obtained in the previous step, as well as RSIP and RSport, look up the corresponding value in the session table, if it is found, go to step 303, if it is not found, confirm the pre-storage There is no first result matching the first message among the results, and then the aforementioned step 201 is executed.

Step 303: Determine whether the result meets the validity period.

After finding the corresponding result, check the update time of the result and the validity period obtained in step 301. For example, if the interval is 5s, check whether the update time of the result is within 5s. If so, determine that the result is the same as the first If the message matches the first result, then the aforementioned step 103 is executed; if not, the result is invalid, it is confirmed that there is no first result matching the first message among the pre-stored results, and then the aforementioned step 201 is executed.

The following is an example in which servers A and B initiate HC requests to the back-end server respectively. The device is HCP.

As shown in Figure 4, servers A and B respectively initiate HC requests. The HC request initiated by server A includes identification information and validity period information, specifically TCP OPT: type(199) interval(5) Src: 192.168.0.1 DST : 192.168.100.1:80. The HC request initiated by server B includes identification information and validity period information, specifically TCP OPT: type(199) interval(5) Src: 192.168.0.2 DST: 192.168.100.1:80. After HCP receives the two HC requests, it looks up the corresponding value in the session table. HCP finds the result that matches the HC request sent by server B, and HCP directly returns the result to server B instead of The HC request is sent to the back-end server. HCP does not find a result that matches the HC request sent by server A, then sends the HC request to the back-end server, and the back-end server returns the result after processing, and HCP feeds back the result to server A, and HCP updates the result to the session table it maintains.

This method can periodically perform HC on the designated port or service of the back-end server. The result of HC is used as the service availability of the back-end server in this period. Other HC requesters also use the check result of this period. Do repeated checks. In this embodiment, by establishing an HCP between the HC request initiator and the back-end service, only one HC request is allowed to reach the back-end server within an HC cycle, and other HC requests reuse the HC request result. , To achieve the purpose of reducing the processing volume of HC requests by the back-end server.

It should be noted that for the method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the embodiments of this application are not limited by the described sequence of actions, because According to the embodiments of the present application, certain steps may be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present application.

Referring to FIG. 5, there is shown a structural block diagram of an embodiment of a message processing apparatus according to the present application, which may specifically include the following units:

The message receiving unit 501 is configured to receive the first message sent by the sender.

The result searching unit 502 is configured to search the pre-stored results for whether there is a first result matching the first message when the first message is a designated type of message.

The result feedback unit 503 is configured to send the first result to the sender when the search unit finds a first result that matches the first message.

In the embodiment of this application, when the device detects that the received message is a specified type of message through the above-mentioned unit, it does not directly transmit the message transparently to the back-end server, but first searches the local pre-stored results for the message. The matching result, if a matching result is found, the result will be directly fed back to the sender, instead of transparently transmitting the message to the back-end server, thereby reducing the back-end server's processing volume of this type of message , Which reduces the pressure on the back-end server to process messages. When the device is used in the HC scenario to the back-end server, the pressure of the back-end server to process the HC request can be reduced.

In another embodiment, as shown in FIG. 6, the device may further include:

The sending unit 601 is configured to send the first message to the server when the first result does not exist in the pre-stored result;

The result receiving unit 602 is configured to receive the second result fed back by the server;

The result sending unit 603 is configured to send the second result to the sender.

The device may also include:

The adding unit 604 is configured to add the second result to the pre-stored result.

In another embodiment, as shown in FIG. 7, the result search unit 502 may further include:

The extraction subunit 701 is configured to obtain the request information and the validity period contained in the first message.

The search sub-unit 702 is configured to search the pre-stored results for whether there is a result corresponding to the requested information.

The judging subunit 703 is configured to, when finding a result corresponding to the requested information in the pre-stored result, judge whether the result meets the validity period; if so, confirm that the result is the same as the first message The matched first result, if not, confirm that the first result does not exist.

In another embodiment, as shown in FIG. 8, the device may further include:

The service detection unit 801 is configured to determine the service availability of the server in the current cycle based on a health check performed on a designated port or service program of the server at regular intervals.

The result storage unit 803 is configured to generate a detection result according to the service availability in the current period, and store the result.

The above request information may include request type, RSIP and RSport.

The above specified type of message may be an HC request message.

An embodiment of the present application also provides an electronic device, including a storage, a transceiver, and a processor.

The processor, the transceiver, and the storage are connected to each other through a bus; the bus can be an ISA bus, a PCI bus, or an EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc.

Wherein, the memory is used to store a program. Specifically, the program may include program code, and the program code includes computer operation instructions. The storage may include a high-speed RAM storage, and may also include a non-volatile memory (non-volatile memory), such as at least one magnetic disk storage.

The transceiver is used to receive the first message sent by the sender; and send the first result to the sender.

The processor is configured to read the program code in the memory, and perform the following steps: when the first message is a message of a specified type, search the pre-stored results for whether there is a first result that matches the first message; If so, the transceiver is notified to send the first result to the sender.

As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The various embodiments in this specification are described in a gradual manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

Those skilled in the art should understand that the embodiments of the embodiments of the present application can be provided as methods, devices, or computer program products. Therefore, the embodiments of the present application may adopt the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present application may adopt computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. form.

In a typical configuration, the computer device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. Memory memory may include non-permanent memory in computer-readable media, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory. Memory (flash RAM). Memory memory is an example of computer-readable media. Computer-readable media includes permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), and other types of random access memory (RAM). ), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital multi-function disc (DVD) or other optical storage, magnetic cassette tape, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include non-persistent computer-readable media (transitory media), such as modulated data signals and carrier waves.

The embodiments of the present application are described with reference to the flowcharts and/or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing terminal equipment to generate a machine, so that the instructions can be executed by the processor of the computer or other programmable data processing terminal equipment A device for realizing the functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram is generated.

These computer program instructions can also be stored in a computer-readable storage that can guide a computer or other programmable data processing terminal equipment to work in a specific manner, so that the instructions stored in the computer-readable storage produce a manufactured product including the instruction device , The instruction device realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing terminal equipment, so that a series of operation steps are executed on the computer or other programmable terminal equipment to produce computer-implemented processing, so that the computer or other programmable terminal equipment The instructions executed above provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

Finally, it should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities. Or there is any such actual relationship or sequence between operations. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements not only includes those elements, but also includes those elements that are not explicitly listed. The other elements listed, or also include elements inherent to this process, method, article, or terminal device. If there are no more restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article, or terminal device that includes the elements.

The text processing method and the text processing device provided by this application are described in detail above. Specific examples are used in this article to explain the principle and implementation of the application. The description of the above embodiments is only used to help understand this application. The method of application and its core idea; meanwhile, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood It is a restriction on this application.

Claims (12)

A message processing method, characterized by comprising: receiving a first message sent by a sender; when the first message is a specified type of message, searching for a pre-stored result whether there is a first message that matches the first message. As a result, the pre-stored result is the result of the detection based on the service availability in the current period; if it is, the first result is sent to the sender; when the first result does not exist in the pre-stored result, Sending the first message to the server; receiving the second result fed back by the server; sending the second result to the sender. The method according to item 1 of the scope of patent application, wherein the method further comprises: adding the second result to the pre-stored result. The method according to item 1 of the scope of patent application, wherein the searching of the pre-stored results for whether there is a first result matching the first message includes: obtaining the request information and the validity period contained in the first message; Search in the pre-stored results whether there is a result corresponding to the requested information; if so, determine whether the result meets the validity period; if it is, confirm that the result is the first result that matches the first message, if not, It is confirmed that the first result does not exist. According to the method described in item 1 of the scope of patent application, the party The method also includes: determining the service availability of the server in the current cycle based on a regular health check performed on the designated port or service program of the server; generating a detection result based on the service availability in the current cycle, and performing the result store. According to the method described in item 3 of the scope of patent application, the request information includes the request type, the destination IP address and the destination port. The method according to any one of items 1 to 5 in the scope of patent application, wherein the specified type of telegram is a health check HC request telegram. A message processing device, which is characterized by comprising: a message receiving unit configured to receive a first message sent by a sender; and a result searching unit configured to store a message in a pre-stored message when the first message is of a specified type Find in the result whether there is a first result that matches the first message, wherein the pre-stored result is the result of the detection generated based on the service availability in the current period; the result feedback unit is configured to when the search unit finds the The first result of the first message matching is to send the first result to the sender; the sending unit is configured to send the first message to the server when the first result does not exist in the pre-stored results The result receiving unit is configured to receive the second result fed back by the server; the result sending unit is configured to send the second result to the sender. The device according to item 7 of the scope of patent application, wherein the device further includes an adding unit configured to add the second result to the pre-stored result. The device according to item 7 of the scope of patent application, wherein the result search unit includes: an extraction sub-unit configured to obtain the request information and the validity period contained in the first message; and the search sub-unit is configured to pre-store Find in the result of whether there is a result corresponding to the request information; the determination sub-unit is configured to find a result corresponding to the request information in the pre-stored result, determine whether the result meets the validity period; if so, confirm The result is the first result matching the first message. If not, it is confirmed that the first result does not exist. The device according to item 7 of the scope of patent application, wherein the device further includes: a service detection unit configured to determine that the server is in the current cycle based on a regular health check performed on a designated port or service program of the server The result storage unit is configured to generate a detection result according to the service availability in the current period, and store the result. The device according to item 9 of the scope of patent application, wherein the request information includes request type, destination IP address and destination port. According to the device described in any one of items 7 to 11 in the scope of the patent application The specified type of telegram is a health check HC request telegram.

Images