CN112202755B - Server distribution method, device, equipment and medium - Google Patents
Server distribution method, device, equipment and medium Download PDFInfo
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- CN112202755B CN112202755B CN202011028745.0A CN202011028745A CN112202755B CN 112202755 B CN112202755 B CN 112202755B CN 202011028745 A CN202011028745 A CN 202011028745A CN 112202755 B CN112202755 B CN 112202755B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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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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Abstract
The application discloses a server distribution method, a device, equipment and a medium, which are used for avoiding overload of a media service node and preventing a conference picture from being blocked. The server allocation method is applied to a video conference system, the video conference system comprises a plurality of servers, and the method comprises the following steps: after receiving a conference information acquisition request of a conference identifier carried by a terminal, determining conference information corresponding to the conference identifier; selecting one server from the plurality of servers to distribute to the terminal based on the conference information corresponding to the conference identification and the load values of the plurality of servers; and updating the load value of the selected server.
Description
Technical Field
The present invention relates to the field of server allocation, and in particular, to a server allocation method, apparatus, device, and medium.
Background
A large-scale video conference generally refers to a video conference in which the number of participants in a single conference reaches the level of thousands of participants, and since the number of participants is large, a video conference system is required to provide a plurality of media service nodes, so that the participants can join the conference through the media service nodes. Because the number of participants is large, load balancing needs to be performed on each media service node so as to avoid stagnation when the participants enter and participate.
In the prior art, the conference entry signaling and the conference exit signaling of the terminals of the participants are used as the load statistics basis of the media service nodes. After receiving a conference entering request sent by a terminal, the signaling service node adds one to the load count value of the media service node 1 allocated to the terminal, and after receiving a terminal conference quitting request or a termination message of a corresponding conference, subtracts one from the load count value of the media service node 1 allocated to the terminal. For example, in the process of multiple terminals applying for joining a conference, the current load statistic of the media service node 1 is 50, the upper limit of the load is 100, and when 80 terminals request the channel information of the media service node from the signaling service node, the signaling service node feeds back the channel information of the media service node 1 to the 80 terminals. But not all terminals that obtain the channel information of the media service node complete the participation process. In 80 terminals, there may be 60 terminals sending an admission request to the signaling service node, and at this time, the load statistic of the access media service node 1 is 110, which exceeds the upper limit of the load of the media service node 1. Therefore, the problems that part of media service nodes are overloaded and the like can occur in the prior art, and a conference picture is blocked.
Disclosure of Invention
The invention provides a server distribution method, a device, equipment and a medium, which are used for avoiding overload of a media service node and preventing a conference picture from being blocked.
The technical scheme of the invention is as follows:
according to a first aspect of the embodiments of the present invention, there is provided a server allocation method, including:
after receiving a conference information acquisition request of a conference identifier carried by a terminal, determining conference information corresponding to the conference identifier;
selecting one server from the plurality of servers to distribute to the terminal based on the conference information corresponding to the conference identifier and the load values of the plurality of servers;
and updating the load value of the selected server.
In the above embodiment, after the conference information acquisition request of the terminal is received, a server is allocated to the terminal, so that the allocated server performs load statistics according to the conference information acquisition request of the terminal, instead of performing load statistics according to the conference entrance request of the terminal in the prior art, thereby avoiding overload of the allocated server and blockage of a conference picture caused by overload. Meanwhile, the server allocated to the terminal is selected according to the conference information and the load values of the plurality of servers, so that the server is allocated to the terminal according to the conference condition and the server load condition, and the server allocation efficiency is improved.
In a possible implementation manner, the server allocation method provided in an embodiment of the present invention further includes determining a load value of the server through the following steps:
determining the sum of a first number of terminals with conference states being conference-entered states and a second number of terminals with conference states being non-conference-entered states as a load value of the server, wherein the first number of terminals with conference states being conference-entered states is the terminal which sends the conference information acquisition request and corresponds to the server;
the terminal in the conference joining state is a terminal which has sent a conference joining request for joining the conference and has not sent a termination request for exiting the conference, and the terminal in the conference non-joining state is a terminal which has not sent the conference joining request and has sent a conference information acquisition request within the first time period.
In the embodiment, the load value of the server is determined according to the total number of the terminals which have entered the conference and the terminals which have sent the conference information acquisition request within the preset time but have not entered the conference, so that the load value of the server is accurately determined, the load balancing precision when the server is distributed to the terminals is improved, and the distribution efficiency is improved.
In a possible implementation manner, in the server allocation method provided in the embodiment of the present invention, after a load calibration condition is satisfied, a sum of the first number and the second number is determined as a load value of the server;
wherein, the load calibration conditions comprise the following partial or all conditions:
determining that a third number of terminals are allocated to the server within a second time length;
determining to allocate a fourth number of terminals to the server;
determining that a video conference system does not receive a conference information acquisition request currently;
the set server load calibration period is reached.
In the above embodiment, a load calibration condition may be set to determine the server load value. The load values of the servers are corrected when the servers are allocated to the terminals, and the resource utilization efficiency of the video conference system is improved.
In a possible implementation manner, in the server allocation method provided in an embodiment of the present invention, determining that a third number of terminals are allocated to the server within a second duration includes:
and determining the number of the terminals distributed to the server to be a third number within a second time length after the load value of the server is updated last time, wherein the third number is not less than the newly added load threshold.
In the above embodiment, the server is allocated to the third number of terminals within the second time period after the load value of the server is updated last time is counted, and for the newly increased load of the server after calibration, when the third number of terminals is not less than the newly increased load threshold, the situation that the server has a sudden load increase within a certain time can be reflected, the actual load of the server needs to be determined in time, and the efficiency of allocating the server by the video conference system is improved.
In a possible implementation manner, in the server allocation method provided in an embodiment of the present invention, determining to allocate a fourth number of terminals to a server includes:
and after the load value of the server is determined to be updated for the last time, the number of the terminals distributed to the server is a fourth number, and the ratio of the fourth number to the maximum load value of the server is not less than the preset load proportion threshold corresponding to the server.
In the above embodiment, in the time duration between the latest update of the server and the current time, the server is allocated to the fourth number of terminals, and the ratio of the fourth number to the maximum load value of the server is not less than the preset load proportion threshold corresponding to the server, so that the situation that the number of newly added loads of the server reaches the newly added load proportion threshold corresponding to the server and a load surge is likely to occur can be reflected, the actual load of the server is updated, and the efficiency of allocating the server by the video conference system is facilitated to be improved.
In a possible implementation manner, in the server allocation method provided in the embodiment of the present invention, the conference information includes a recording identifier or a cascade identifier, and the terminal is a video storage terminal;
based on the conference information corresponding to the conference identifier and the load values of the plurality of servers, selecting one server from the plurality of servers to allocate to the terminal, including:
and if the load value of the first server does not reach the maximum load value, selecting a server meeting the distribution condition from the first server to distribute the server to the terminal, wherein the first server is a server with audio and video processing and terminal communication capacity in the plurality of servers.
In the above embodiment, the conference information includes a recording identifier or a cascade identifier, it is determined that the conference needs to be recorded or cascaded, and a terminal that issues a request to the video conference system is a terminal that stores a conference video, and when a server with audio and video processing and terminal communication capabilities does not reach an upper load limit, the server with audio and video processing and terminal communication capabilities is preferentially allocated to the terminal, so as to avoid data loss and the like that may occur in the process of forwarding conference data by the server.
In a possible implementation manner, in the server allocation method provided in an embodiment of the present invention, the method further includes:
and if the load value of the first server is the maximum load value, selecting a server meeting the distribution condition from a second server to distribute to the terminal, wherein the second server is a server with the communication capability with the terminal in the plurality of servers.
In the embodiment, if the load value of the server with the audio and video processing and terminal communication capabilities reaches the upper load limit, the server with the terminal communication capability is allocated to the terminal, and audio and video data of a conference are directly or indirectly transmitted to the terminal through the server.
In a possible implementation manner, in the server allocation method provided in an embodiment of the present invention, the allocation condition includes at least one of the following conditions:
the load value is minimum;
the ratio of the load value of the server to the preset load threshold value corresponding to the server is minimum;
the closest spatial distance to the terminal.
In the above embodiment, the servers satisfying the allocation condition are allocated to the terminals, so that the terminals are uniformly allocated to the respective servers.
In a possible implementation manner, in the server allocation method provided in an embodiment of the present invention, if the allocation condition includes that the distance to the terminal space is closest, the method further includes:
if the load value of the first server does not reach the maximum load value, determining the spatial distance between each server in the first server and the terminal according to the geographical position information of the terminal or the acquired geographical position information of the terminal contained in the conference information acquisition request;
and if the load value of the first server is the maximum load value, determining the spatial distance between each server in the second server and the terminal according to the geographical position information of the terminal or the acquired geographical position information of the terminal contained in the conference information acquisition request.
In the above embodiment, the spatial distance between the server and the terminal in the video conference system may be determined according to the geographic location information in the conference information acquisition request sent by the terminal, or according to the geographic location information of the terminal acquired in advance. In the process of allocating the server to the terminal, the spatial distance between the terminal and a server in a plurality of servers in the video conference system is considered, and the server close to the spatial distance between the terminal and the server is selected, so that the improvement of the communication quality of the terminal in the conference process or the reduction of the communication time delay are facilitated.
According to a second aspect of the embodiments of the present invention, there is provided a server allocation apparatus applied to a video conference system including a plurality of servers, the apparatus including:
the determining unit is used for determining the conference information corresponding to the conference identifier after receiving a conference information acquisition request of the conference identifier carried by the terminal;
the distribution unit is used for selecting one server from the plurality of servers to distribute to the terminal based on the conference information corresponding to the conference identifier and the load values of the plurality of servers;
and the processing unit is used for updating the load value of the selected server.
In a possible implementation manner, in the server allocation apparatus provided in the embodiment of the present invention, the processing unit is further configured to:
determining the sum of a first number of terminals with conference states being conference-entered states and a second number of terminals with conference states being non-conference-entered states as a load value of the server, wherein the first number of terminals with conference states being conference-entered states is the terminal which sends the conference information acquisition request and corresponds to the server;
the terminal in the conference joining state is a terminal which has sent a conference joining request for joining the conference and has not sent a termination request for exiting the conference, and the terminal in the conference non-joining state is a terminal which has not sent the conference joining request and has sent a conference information acquisition request within the first time period.
In a possible implementation manner, in the server allocation method provided in an embodiment of the present invention, the processing unit is specifically configured to: after the load calibration condition is met, determining the sum of the first quantity and the second quantity as a load value of the server;
wherein, the load calibration conditions comprise the following partial or all conditions:
determining that a third number of terminals are allocated to the server within a second time length;
determining to allocate a fourth number of terminals to the server;
determining that a video conference system does not receive a conference information acquisition request currently;
the set server load calibration period is reached.
In a possible implementation, the processing unit is specifically configured to:
and determining the number of the terminals distributed to the server to be a third number within a second time length after the load value of the server is updated last time, wherein the third number is not less than the newly added load threshold.
In a possible implementation, the processing unit is specifically configured to:
and after the load value of the server is determined to be updated for the last time, the number of the terminals distributed for the server is determined to be a fourth number, and the ratio of the fourth number to the maximum load value of the server is not less than the preset load proportion threshold corresponding to the server.
In a possible implementation manner, in the server allocation apparatus provided in the embodiment of the present invention, the conference information includes a recording identifier or a cascade identifier, and the terminal is a video storage terminal;
the allocation unit is specifically configured to:
and if the load value of the first server does not reach the maximum load value, selecting a server meeting the distribution condition from the first server to distribute to the terminal, wherein the first server is a server with audio and video processing and terminal communication capacity in the plurality of servers.
In a possible implementation manner, in the server allocation apparatus provided in the embodiment of the present invention, the allocation unit is further configured to:
and if the load value of the first server is the maximum load value, selecting a server meeting the distribution condition from a second server to distribute to the terminal, wherein the second server is a server with the communication capability with the terminal in the plurality of servers.
In a possible implementation manner, in the server allocation apparatus provided in an embodiment of the present invention, the allocation condition includes at least one of the following conditions:
the load value is minimum;
the ratio of the load value of the server to the preset load threshold value corresponding to the server is minimum;
the closest spatial distance to the terminal.
In a possible implementation, the processing unit is further configured to:
if the load value of the first server does not reach the maximum load value, determining the spatial distance between each server in the first server and the terminal according to the geographical position information of the terminal or the acquired geographical position information of the terminal contained in the conference information acquisition request;
and if the load value of the first server is the maximum load value, determining the spatial distance between each server in the second server and the terminal according to the geographical position information of the terminal or the acquired geographical position information of the terminal contained in the conference information acquisition request.
According to a third aspect of embodiments of the present invention, there is provided an electronic apparatus, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the server allocation method of any one of the first aspect.
According to a fourth aspect of the embodiments of the present invention, there is provided a video conference system, the system including:
a plurality of servers;
a processor configured to execute instructions to implement the server allocation method as any one of the first aspect is performed.
According to a fifth aspect of embodiments of the present invention, there is provided a storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the server allocation method of any one of the first aspect.
In addition, for technical effects brought by any one implementation manner of the second to fifth aspects, reference may be made to technical effects brought by different implementation manners of the first aspect, and details are not described here.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention and are not intended to limit the invention.
Fig. 1 is a schematic diagram illustrating a configuration of a video conferencing system according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating an interaction flow between a terminal and a video conference system according to an exemplary embodiment.
FIG. 3 is a schematic flow chart diagram illustrating a server allocation method in accordance with an exemplary embodiment.
Fig. 4 is a schematic structural diagram illustrating a server distribution apparatus according to an exemplary embodiment.
Fig. 5 is a schematic structural diagram of an electronic device according to an exemplary embodiment.
Fig. 6 is a block diagram illustrating a video conferencing system in accordance with an exemplary embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The application scenario described in the embodiment of the present invention is for more clearly illustrating the technical solution of the embodiment of the present invention, and does not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by a person skilled in the art that with the occurrence of a new application scenario, the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems. In the description of the present invention, the term "plurality" means two or more unless otherwise specified.
In a video conference system, a Multipoint Control Unit (MCU), that is, a video conference server, and devices such as software and hardware terminals are generally included. As shown in fig. 1, the terminal collects images and sounds and encodes and transmits the images and sounds to the media service node in the MCU. The media service node has terminal access and network transceiving functions of audio and video data. And the media processing node performs fusion processing and sound mixing processing on the images sent by the plurality of terminals, does not perform image fusion processing or does not perform sound mixing processing according to the requirements of the actual conference application scene. And then the media service node enables the audio and video data processed by the media processing node to participate in each terminal, so that the audio and video call of multi-people participating is realized. The signaling service node processes the participation related signaling of the terminal and is responsible for distributing the load of the media service node.
With the increasing demand of video conference systems, large conference demands such as "thousand-person conference" are provided, that is, the number of participants in a single conference reaches the level of thousands of persons. Due to the limited access capability of a single media service node in the video conference system, the participating terminals necessarily need to be accessed from different media service nodes. Therefore, server allocation of each media service node of the video conference is very important.
In a complex network environment, the conference entering process completed by each participant terminal comprises the processes of obtaining media channel information of a media service node end, NAT traversal punching, media transmission channel establishment and the like, and the conference entering process usually needs several seconds. At this point, the pressure load statistics and the balanced distribution of each media service node become troublesome.
In the conventional statistical method, when a terminal requests channel information of a media service node from a signaling service node, the signaling service node allocates the media channel information of the media service node 1 to the terminal, and after receiving a conference entering request sent by the terminal, the signaling service node adds one to a load count value of the media service node 1 allocated to the terminal, and after receiving a terminal conference returning request or a termination message of a corresponding conference, the signaling service node subtracts one from the load count value of the media service node 1 allocated to the terminal. For example, in the process of multiple terminals applying for joining a conference, the current load statistic of the media service node 1 is 50, the upper limit of the load is 100, and when 80 terminals request the channel information of the media service node from the signaling service node, since the load rate of the media service node 1 is lower than that of other media service nodes, the signaling service node feeds back the channel information of the media service node 1 to the 80 terminals requesting the channel information of the media service node. In 80 terminals, 60 terminals send a conference entering request to the signaling service node, and at this time, the load statistic of the access media service node 1 is 110, which exceeds the upper limit of the load. Therefore, the problems that the load distribution of the media service nodes is unbalanced, and the overload of part of the media service nodes causes the blockage of conference pictures and the like are often caused by the conventional statistical method. The application provides a server allocation method, which is used for avoiding the problems of overload of a service node of a server medium, blockage of a conference picture and the like caused by the overload of the server.
Fig. 2 is a schematic diagram illustrating a process of interaction between a terminal and a video conference system according to an exemplary embodiment, where as shown in fig. 2, the terminal interacts with the video conference system during a process of joining a video conference, and the method includes the following steps:
step S201, the terminal sends a conference information acquisition request carrying a conference identifier to the system.
In specific implementation, the terminal sends a conference information acquisition request to the system, so as to acquire the conference basic information corresponding to the conference identifier. For example, the terminal triggers sending a conference information acquisition request to the system by recognizing text and figure information of a certain conference, or triggers sending the conference information acquisition request to the system by inputting a conference identifier through an application program. Meanwhile, the conference information acquisition request also allows the user to acquire, from the system, channel information of a server allocated to the user, such as an Internet Protocol (IP) address. In an actual application scenario, the conference information obtaining request may be transmitted through a preset protocol, for example, a protocol getconference basic.
Step S202, the system determines the meeting information corresponding to the meeting identification and the server allocated for the terminal.
In specific implementation, the system determines conference information corresponding to a conference identifier in the conference information acquisition request, where the conference information may include attributes of the conference, such as a conference form (recording or cascading), and allocates a server (or a node) to the terminal, where the conference form is that the recorded conference information includes the recording identifier, which reflects that conference content of the conference needs to be recorded, and provides a conference playback service to a user, and the conference form is that the cascaded conference information includes the cascading identifier, which reflects that the conference needs to be provided by two video conference systems, for example, two video conference systems in different areas provide video conference services to the conference.
Meanwhile, the conference form is a recorded or cascaded conference, a video storage terminal (or a server) stores the video of the conference, and the terminal also sends a conference information acquisition request to the video conference system so that the video conference system allocates the server for the video conference system to receive the audio and video data of the conference. The video conference system can distinguish the terminal types according to the video storage terminal identification and the user terminal identification.
Step S203, the system sends the conference information and the server information to the terminal.
In specific implementation, in response to the received conference information acquisition request, the corresponding conference information is sent to the terminal, and server information (for example, a server IP address) is allocated to the terminal.
And step S204, the terminal determines the channel information corresponding to the server connected and distributed.
In specific implementation, the terminal determines the public network IP address of the connection between the terminal and the server according to the received IP address of the server. In an actual application scenario, the terminal may obtain the IP address of the terminal by initiating NAT traversal hole punching to the server. The IP address of the terminal may also be configured in advance. The IP address of the terminal is used as the channel information when connecting to the allocated server.
In step S205, the terminal sends a conference entry request carrying the channel information of the terminal.
In specific implementation, the terminal sends a conference entering request to the system, which can reflect that the terminal initiates a conference entering, and in an actual application scenario, the conference entering request, such as protocol INVITE, can be transmitted through a preset protocol.
And step S206, the system and the terminal establish a communication transmission channel to transmit conference audio and video data.
In specific implementation, the terminal and the system establish a transmission channel for transmitting audio and video data of the conference, including audio and video data sent by the terminal to the system and audio and video data of the conference sent by the system to the terminal.
Step S207, the terminal sends a fallback request to the system.
In specific implementation, when a terminal joining a conference exits the conference, a conference exit request is triggered to be sent to the system so that the system can know that the terminal exits the conference. If the conference joined by the terminal is finished but the terminal does not exit the conference, the system can send a quit notification to the terminal so that the terminal can know that the conference is finished or terminated. In an actual application scenario, the fallback request or the fallback notification may be transmitted through a preset protocol, such as the protocol BYE.
The server distribution method can be applied to the interactive scene of the terminal and the video conference system. Fig. 3 is a flowchart illustrating a server allocation method according to an exemplary embodiment, as shown in fig. 3, the server allocation method is applied to a video conference system, the video conference system includes a plurality of servers, and the server allocation method includes the following steps:
step S301, after receiving a conference information acquisition request of a conference identifier carried by a terminal, determining conference information corresponding to the conference identifier.
In specific implementation, the system stores the conference identifier and the corresponding conference information in advance. After receiving a conference information acquisition request of a terminal, the conference information requested by the terminal can be determined according to the conference identifier in the conference information acquisition request.
Step S302, based on the conference information corresponding to the conference identifier and the load values of the plurality of servers, one server is selected from the plurality of servers and allocated to the terminal.
In specific implementation, when the system allocates a server to a terminal, one server is allocated to the terminal according to conference information requested by the terminal and load conditions of a plurality of servers in the system.
Step S303, the load value of the selected server is updated.
In specific implementation, after a server is allocated to a terminal, the load value of the server is updated. For example, in the process of a plurality of terminals applying for joining a conference, the current load statistic value of the media service node 1 is 50, the upper limit of the load is 100, and when a terminal requests the channel information of the server from the system, the system feeds back the channel information of the server 1 to the terminal, and updates the load statistic value of the server 1 to 51. The load statistic 51 of the server 1 is not changed after the terminal sends a conference entry request to the system. Because the load value is updated when the server 1 is allocated to the terminal, but not when the terminal accesses the server 1, the overload of the server in the prior art is avoided, and the problems of jam of a conference picture and the like are not caused.
In a possible implementation manner, after the terminal joins the conference, the load value of the server allocated by the terminal may be updated when a request for quitting the terminal is received, that is, a request message for the terminal to actively quit the conference is received. Or after the terminal joins the conference, updating the load value of the server distributed by the terminal.
In order to further improve the use efficiency of system resources, the load value of the server can be calibrated. The load value of the server may be determined by:
determining the sum of a first number of terminals with conference states being conference-entered states and a second number of terminals with conference states being non-conference-entered states as a load value of the server, wherein the first number of terminals with conference states being conference-entered states is the terminal which sends the conference information acquisition request and corresponds to the server;
the terminal in the conference joining state is a terminal which has sent a conference joining request for joining the conference and has not sent a termination request for exiting the conference, and the terminal in the conference non-joining state is a terminal which has not sent the conference joining request and has sent a conference information acquisition request within the first time period.
In particular, the terminal to which the server is assigned may transmit a conference entry request to the system (the user using the terminal is participating in the conference), or may not transmit a conference entry request to the system (the user using the terminal is not participating in the conference). If there is a terminal to which a server is allocated that does not send a conference entry request to the system, the server resources allocated to the terminal are wasted. To avoid such waste, the load value of the server may be corrected during server allocation.
The system may record the correspondence between the terminal identifier that sent the conference information acquisition request and the server allocated to the terminal. Time information (conference information acquisition request timestamp lastgetconcebasebasicts) at which the conference information acquisition request is received may also be recorded. When the server load value is determined, the conference state of the terminal corresponding to the server is traversed, and whether each terminal is in a conference-in state or a conference-not-in state is determined.
The terminal in the conference-entered state is a terminal which has sent a conference-entered request to the system and has not sent a termination request. The terminal in the non-conference state is a terminal which has sent the conference information acquisition request within a first time period, for example, a terminal which has sent the conference information acquisition request to the system within approximately 10 seconds. The terminal may be determined to be in the non-conference state according to that a difference between the current time (current timestamp) and the time of receiving the conference information obtaining request of the terminal is less than a first duration. If the difference between the current time (current timestamp) and the time for receiving the conference information acquisition request of the terminal n is greater than the first time length, the conference information acquisition request of the terminal n is considered to be invalid, and the resource allocated to the terminal n can be recovered, and is not included in the load statistics.
And taking the sum of the number of the terminals which are in the conference state (the first number) and the number of the terminals which are not in the conference state (the second number) as the load value of the server, and replacing the current load value of the server.
In an actual application scenario, by setting a load calibration condition, a load calibration process may be triggered for a server allocated to a terminal when the server satisfies the load calibration condition.
The load calibration conditions may include some or all of the following conditions:
determining that a third number of terminals are allocated to the server within a second time length under the condition I;
determining to distribute a fourth number of terminals for the server under the second condition;
determining that the video conference system does not receive a conference information acquisition request currently;
and the fourth condition is that the set load calibration period of the server is reached.
In a specific implementation, for example, when the load calibration condition is the second condition, the server allocated to the terminal is allocated to the fourth number of terminals, for example, the server 2 is allocated to 30 terminals, and the load calibration process for the server 2 is triggered. For another example, when the load calibration conditions are condition three and condition four, the video conference system (or a service in the system responsible for receiving the terminal conference information acquisition request) does not receive the conference information acquisition request currently, and reaches a preset load calibration period of the server 2, and triggers the server 2 to perform the load calibration process. In an actual application scenario, load calibration can be triggered to be performed on all servers in the video conference system through the load calibration condition. The load value of the server can be quickly corrected through load calibration so as to ensure the load balancing precision of each server.
In the first condition, it is determined that a third number of terminals are allocated to the server within the second time period, where the third number of terminals allocated to the server within the second time period after the load value of the server is updated last time may be determined as the third number, and the third number is not less than the newly added load threshold. The number of terminals allocated to the server in any second time period may also be determined as the third number.
The second time period may be a preset time period, for example, 5 minutes, or more than 10 minutes, and the preset time period may be configured according to experience or practical application scenarios. And determining the number of terminals distributed to the server in the second time period, and estimating whether the server generates a load surge in the short time, wherein the number of the terminals distributed to the server in the second time period is greater than a newly-added load threshold value, so that the load surge in the short time of the server is reflected. Otherwise, the number of the terminals distributed by the server in the second time period is smaller than the newly added load number threshold value, and the fact that the server does not have sudden load increase in a short time period is reflected.
In an actual application scenario, the same newly added load threshold may be configured for servers with different load capacities. And configuring corresponding newly added load thresholds for servers with different load capacities according to the load capacities of the servers.
In addition, regarding the condition four, it may be determined that the server is allocated with the fourth number of terminals, and it may be confirmed that the condition four is satisfied by determining that the number of terminals currently allocated to the server is the fourth number, in order to count whether the number of terminals currently allocated to the server is the fourth number. Otherwise, it is determined that the number of terminals currently allocated to the server is not the fourth number, and it may be determined that the condition four is not satisfied. The fourth quantity may be a fixed numerical value, or a fixed numerical value corresponding to the server. The fourth quantity can represent the load early warning value of the server, and when the load early warning value is reached, the server needs to be subjected to load calibration.
In a possible implementation manner, the fourth condition may be that the number of terminals allocated to the server after the load value of the server is updated last time is determined to be a fourth number, and a ratio of the fourth number to the maximum load value of the server is not less than a preset load proportion threshold corresponding to the server.
After the server updates the load value, it is determined that the number of terminals allocated to the server is more accurate than the real number. And if the number of the terminals allocated to the server is the fourth number, and the ratio of the fourth number to the maximum load value of the server exceeds the preset load ratio threshold corresponding to the server, it is reflected that the server may be overloaded or have a sudden increase in load. If the preset load proportion threshold value is a numerical value larger than 1, the server is reflected to be possibly overloaded, and the load of the server needs to be calibrated so as to determine the real load condition of the server, solve the overload problem of the server in time, improve the efficiency of distributing the server by the video conference system, and provide the quality of conference service for the terminal. If the preset load proportion threshold is a value smaller than 1 and larger than 0, it is reflected that the server may have a load increment ratio exceeding the preset load proportion threshold after the server updates the load value for the last time, and a load surge may occur, which affects the performance of the server for the conference.
In a possible implementation, the load calibration process of the server may also be triggered when the video conference system determines that there is a conference end. That is, at the end of a conference, the videoconference system actively hangs up the terminals participating in the conference, for example by sending a notification of a fallback to the terminals.
In the server allocation method provided by the embodiment of the invention, the conference information comprises a recording identifier or a cascade identifier, and the terminal is a video storage terminal; based on the conference information corresponding to the conference identifier and the load values of the plurality of servers, selecting one server from the plurality of servers to allocate to the terminal can perform server allocation in the following manner.
And if the load value of the first server does not reach the maximum load value, selecting a server meeting the distribution condition from the first server to distribute the server to the terminal, wherein the first server is a server with audio and video processing and terminal communication capacity in the plurality of servers.
In specific implementation, the conference information requested by the terminal includes a recording identifier or a cascade identifier, and the terminal is a video storage terminal, and a server (a first server) having audio/video processing and terminal communication capability can be preferentially selected from the servers (the first server) to be allocated to the terminal. And selecting a server meeting the allocation condition from the first servers to be allocated to the terminal if the load value of the first server does not reach the maximum load value and the first server can be accessed to the terminal.
And if the load value of the first server is the maximum load value, selecting a server meeting the distribution condition from a second server to distribute to the terminal, wherein the second server is a server with the communication capability with the terminal in the plurality of servers.
In specific implementation, when the load value of the first server is the maximum load value or the upper limit of the load, that is, when the first server continues to access the terminal and overload occurs, the server (the second server) having the capability of communicating with the terminal selects the service satisfying the allocation condition to the terminal.
The above-mentioned distribution condition may include at least one of the following conditions:
the load value is minimum;
the ratio of the load value of the server to the preset load threshold value corresponding to the server is minimum;
the closest spatial distance to the terminal.
In a specific implementation, the server with the smallest load value can be selected from the first server or the second server and allocated to the terminal. The server with the smallest server load rate, that is, the server with the smallest ratio of the current load value of the server to the upper load limit (load threshold) may also be selected from the first server and the second server.
In a possible mode, when the spatial distance between the server and the terminal is determined, the geographical position information of the server can be determined according to the boundary code of the server, and the geographical position information of each server can also be determined when a video conference system is built. And if a newly added server exists after the video conference system is built, determining the geographical position information of the newly added server after the newly added server is accessed into the video conference system. The geographical position information of the terminal can be carried in the conference information acquisition request sent by the terminal, and the terminal can also independently send the geographical position information to the video conference system. The video conference system can also determine the geographical position information of the terminal according to the information such as the IP address of the terminal.
According to the geographical position information of the server and the geographical position information of the terminal, the spatial distance between the server and the terminal can be calculated. When a server is allocated to a terminal, a server closest to the terminal in spatial distance may be allocated to the terminal.
In a possible embodiment, the priority of the plurality of servers in the video conference system may be set, for example, the priority of the first server is high, the priority of the second server is low, and when the first service load pressure is small, one server is selected from the first servers and allocated to the terminal.
Fig. 4 shows a server distribution apparatus applied to a video conference system including a plurality of servers, according to an exemplary embodiment, the apparatus including:
a determining unit 401, configured to determine, after receiving a conference information acquisition request of a conference identifier carried by a terminal, conference information corresponding to the conference identifier;
an allocating unit 402, configured to select one server from the multiple servers to allocate to the terminal based on the conference information corresponding to the conference identifier and the load values of the multiple servers;
a processing unit 403, configured to update the load value of the selected server.
In a possible implementation manner of the server allocation apparatus provided in the embodiment of the present invention, the processing unit 403 is further configured to:
determining the sum of a first number of terminals with conference states being conference-entered states and a second number of terminals with conference states being non-conference-entered states as a load value of the server, wherein the first number of terminals with conference states being conference-entered states is the terminal which sends the conference information acquisition request and corresponds to the server;
the terminal in the conference joining state is a terminal which has sent a conference joining request for joining the conference and has not sent a termination request for exiting the conference, and the terminal in the conference non-joining state is a terminal which has not sent the conference joining request and has sent a conference information acquisition request within the first time period.
In a possible implementation manner, in the server allocation method provided in the embodiment of the present invention, the processing unit 403 is specifically configured to: after the load calibration condition is met, determining the sum of the first quantity and the second quantity as a load value of the server;
wherein, the load calibration conditions comprise the following partial or all conditions:
determining that a third number of terminals are allocated to the server within a second time length;
determining to allocate a fourth number of terminals to the server;
determining that a video conference system does not receive a conference information acquisition request currently;
the set server load calibration period is reached.
In a possible implementation, the processing unit 403 is specifically configured to:
and determining the number of the terminals distributed to the server to be a third number within a second time length after the load value of the server is updated last time, wherein the third number is not less than the newly added load threshold.
In a possible implementation, the processing unit 403 is specifically configured to:
and after the load value of the server is determined to be updated for the last time, the number of the terminals distributed to the server is a fourth number, and the ratio of the fourth number to the maximum load value of the server is not less than the preset load proportion threshold corresponding to the server.
In a possible implementation manner, in the server allocation apparatus provided in the embodiment of the present invention, the conference information includes a recording identifier or a cascade identifier, and the terminal is a video storage terminal;
the allocating unit 402 is specifically configured to:
and if the load value of the first server does not reach the maximum load value, selecting a server meeting the distribution condition from the first server to distribute to the terminal, wherein the first server is a server with audio and video processing and terminal communication capacity in the plurality of servers.
In a possible implementation manner, in the server allocating device provided in the embodiment of the present invention, the allocating unit 402 is further configured to:
and if the load value of the first server is the maximum load value, selecting a server meeting the distribution condition from a second server to distribute to the terminal, wherein the second server is a server with the communication capability with the terminal in the plurality of servers.
In a possible implementation manner, in the server allocation apparatus provided in an embodiment of the present invention, the allocation condition includes at least one of the following conditions:
the load value is minimum;
the ratio of the load value of the server to the preset load threshold value corresponding to the server is minimum;
the closest spatial distance to the terminal.
In a possible implementation, the processing unit 403 is further configured to:
if the load value of the first server does not reach the maximum load value, determining the spatial distance between each server in the first server and the terminal according to the geographical position information of the terminal or the acquired geographical position information of the terminal contained in the conference information acquisition request;
and if the load value of the first server is the maximum load value, determining the spatial distance between each server in the second server and the terminal according to the geographical position information of the terminal or the acquired geographical position information of the terminal contained in the conference information acquisition request.
Based on the same concept of the above-mentioned embodiment of the present invention, fig. 5 is a schematic structural diagram of an electronic device according to an exemplary embodiment, and as shown in fig. 5, an electronic device 500 according to an exemplary embodiment of the present invention includes:
a processor 510;
a memory 520 for storing instructions executable by processor 510;
wherein processor 510 is configured to execute instructions to implement a server allocation method in an embodiment of the present invention.
In an exemplary embodiment, a storage medium comprising instructions, such as the memory 520 comprising instructions, executable by the processor 510 of the server distribution apparatus to perform the method described above is also provided. Alternatively, the storage medium may be a non-transitory computer readable storage medium, for example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Additionally, fig. 6 illustrates a video conferencing system according to an exemplary embodiment, as shown in fig. 6, the system comprising:
the processor 601 is configured to execute the instructions to implement the server allocation method provided by the embodiment of the present invention.
In one possible implementation, the video conference system further includes a memory 602 storing computer program instructions related to the server allocation method provided by the embodiment of the present invention.
In particular, processor 601 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits that may be configured to implement an embodiment of the present invention.
The processor 601 realizes the server allocation method in the above-described embodiments by reading and executing computer program instructions stored in the memory 602.
In one example, the electronic device may also include a communication interface 603 and a bus 610. As shown in fig. 6, the processor 601, the memory 602, and the communication interface 603 are connected via a bus 610 to complete communication therebetween.
The communication interface 603 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
The plurality of servers 604 included in the video conference system provided in the embodiment of the present invention may be connected to the processor 601 through the bus 610.
In addition, in combination with the server allocation method in the foregoing embodiment, the embodiment of the present invention may be implemented by providing a computer-readable storage medium. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the server allocation methods in the above embodiments.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the present application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (12)
1. A server allocation method applied to a video conference system including a plurality of servers, the method comprising:
after receiving a conference information acquisition request of a conference identifier carried by a terminal, determining conference information corresponding to the conference identifier;
selecting one server from the plurality of servers to distribute to the terminal based on the conference information corresponding to the conference identification and the load values of the plurality of servers;
updating the load value of the selected server;
the method comprises the following steps of:
determining the sum of a first number of terminals with conference states being conference-entered states and a second number of terminals with conference states being non-conference-entered states as a load value of the server, wherein the first number of terminals with conference states being conference-entered states is the terminal which sends the conference information acquisition request and corresponds to the server; the terminal in the conference joining state is a terminal which has sent a conference joining request for accessing the conference and has not sent a termination request for exiting the conference, and the terminal in the conference non-joining state is a terminal which has not sent the conference joining request and has sent a conference information acquisition request within a first time period.
2. The method of claim 1, wherein after a load calibration condition is satisfied, determining a sum of the first number and the second number as a load value of the server;
wherein the load calibration conditions include some or all of the following conditions:
determining that a third number of terminals are allocated to the server within a second duration;
determining to allocate a fourth number of terminals to the server;
determining that the video conference system does not receive a conference information acquisition request currently;
and reaching the set load calibration period of the server.
3. The method of claim 2, wherein the determining that a third number of terminals are allocated to the server within the second duration comprises:
and determining the number of the terminals distributed to the server to be a third number within a second time length after the load value of the server is updated last time, wherein the third number is not less than the newly added load threshold.
4. The method of claim 2, wherein the determining allocates a fourth number of terminals to the server comprises:
and determining that the number of the terminals distributed to the server is a fourth number after the load value of the server is updated for the last time, wherein the ratio of the fourth number to the maximum load value of the server is not less than a preset load proportion threshold corresponding to the server.
5. The method of claim 1, wherein the conference information includes a recording identifier or a cascade identifier, and the terminal is a video storage terminal;
the selecting one server from the plurality of servers to allocate to the terminal based on the conference information corresponding to the conference identifier and the load values of the plurality of servers includes:
and if the load value of the first server does not reach the maximum load value, selecting a server meeting the distribution condition from the first server to distribute to the terminal, wherein the first server is a server with audio and video processing and terminal communication capacity in the plurality of servers.
6. The method of claim 5, further comprising:
and if the load value of the first server is the maximum load value, selecting a server meeting the distribution condition from a second server to distribute to the terminal, wherein the second server is a server which has the communication capacity with the terminal in the plurality of servers.
7. The method of claim 6, wherein the allocation condition comprises at least one of:
the load value is minimum;
the ratio of the load value of the server to the preset load threshold value corresponding to the server is minimum;
the space distance with the terminal is the nearest.
8. The method of claim 7, wherein if the allocation condition includes a spatial proximity to the terminal being closest, the method further comprises:
if the load value of the first server does not reach the maximum load value, determining the spatial distance between each server in the first server and the terminal according to the fact that the meeting information acquisition request contains the geographical position information of the terminal or the acquired geographical position information of the terminal;
and if the load value of the first server is the maximum load value, determining the spatial distance between each server in the second server and the terminal according to the geographical position information of the terminal or the acquired geographical position information of the terminal contained in the conference information acquisition request.
9. A server distribution apparatus applied to a video conference system including a plurality of servers, the apparatus comprising:
the system comprises a determining unit, a processing unit and a processing unit, wherein the determining unit is used for determining the conference information corresponding to a conference identifier after receiving the conference information acquisition request of the conference identifier carried by a terminal;
the distribution unit is used for selecting one server from the plurality of servers to distribute to the terminal based on the conference information corresponding to the conference identifier and the load values of the plurality of servers;
a processing unit for updating the load value of the selected server;
wherein the processing unit is further configured to determine a load value of the server by:
determining the sum of a first number of terminals with conference states being conference-entered states and a second number of terminals with conference states being non-conference-entered states as a load value of the server, wherein the first number of terminals with conference states being conference-entered states is the terminal which sends the conference information acquisition request and corresponds to the server; the terminal in the conference joining state is a terminal which has sent a conference joining request for accessing the conference and has not sent a termination request for exiting the conference, and the terminal in the conference non-joining state is a terminal which has not sent the conference joining request and has sent a conference information acquisition request within a first time period.
10. An electronic device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the server allocation method of any one of claims 1 to 8.
11. A video conferencing system, the system comprising:
a plurality of servers;
a processor configured to execute instructions to implement the server allocation method of any one of claims 1 to 8.
12. A storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the server allocation method of any one of claims 1 to 8.
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| CN113055460B (en) * | 2021-03-09 | 2024-04-19 | 百果园技术(新加坡)有限公司 | Method, device, equipment and medium for selecting server |
| CN114125359A (en) * | 2021-11-23 | 2022-03-01 | 深圳市台电实业有限公司 | Expandable distributed media processing method and system |
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