CN111262924A - Software and hardware combined network load balancing implementation system and process method - Google Patents
Software and hardware combined network load balancing implementation system and process method Download PDFInfo
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Abstract
The invention provides a software and hardware combined network load balancing implementation system and a process method, wherein the system comprises a control node and a load balancing node, the control node sends a command to the load balancing node, the load balancing node implements the operation and management of a load balancer, the network load balancing implementation system also comprises an intelligent network card, and the intelligent network card is arranged at the load balancing node and supports load balancing unloading; the invention also provides a software and hardware combined process method for realizing the system by network load balancing; the invention adopts the mode of combining the load balancing software and the intelligent network card, the performance and the stability can be ensured, the problem that the performance and the stability of the system can not be ensured under the condition of only using the load balancing software in the prior art is solved, the price cost of the intelligent network card is lower, the intelligent network card can be put into use only by a small amount of adaptation development work, and the defects that the price is high and a large amount of adaptation development is needed under the condition of using hardware such as F5 and the like in the prior art are overcome.
Description
Technical Field
The invention relates to the technical field of cloud computing, in particular to a system and a process method for realizing network load balance by combining software and hardware.
Background
With the development of cloud computing technology, the demand of cloud hosts for high-performance load balancers in cloud environments is also increasing. At present, most cloud environments use a scheme of load balancing software based on HaProxy and Ngnix, or use a hardware load balancing scheme such as F5. Software solutions are generally low in price, but performance and stability cannot be guaranteed, while hardware solutions can guarantee high performance and stability, but the price is generally high, and a large amount of adaptation development is usually required, so that a large amount of labor and time are required.
Therefore, neither a software solution nor a hardware solution in the prior art can well meet the use requirements.
Disclosure of Invention
In view of the problems in the prior art, the present invention aims to provide a device for implementing a system for balancing network load, which does not need a large amount of adaptation development work, can ensure performance and stability, and has a moderate price; a process method of the network load balancing realization system with the combination of software and hardware is also provided.
In order to achieve the above object, the present invention provides a network load balancing implementation system with software and hardware combined, where the load balancing node includes a load balancer, the system includes a control node and a load balancing node, the control node sends a command to the load balancing node, and the load balancing node implements operation and management of the load balancer; the network load balancing implementation system further comprises an intelligent network card, and the intelligent network card is arranged at the load balancing node and supports load balancing unloading.
Further, the control node comprises an API server and an LB server.
Preferably, the API server provides a REST interface to input commands including create, delete, update, and the like.
Further, the LB server receives the command of the API server and forwards the command to the load balancing node.
Further, the load balancing node also comprises a user space and a kernel space, and the user space and the kernel space are isolated from each other.
Preferably, the user space includes load balancing software supporting an offload function of load balancing, and further includes an LB agent, and the LB agent manages the load balancer in response to a command of the LB server.
Preferably, the kernel space includes a front end, a policy, and a back end, and the front end applies the policy to distribute external requests to the back end.
The invention also provides a software and hardware combined process method for realizing the system by network load balancing, which comprises the following steps:
s1, installing load balancing software and an intelligent network card, and starting a load balancing unloading function of the intelligent network card;
s2, the command is required to be sent to an LB server through an API server;
s3, the LB server selects the load balancing nodes and calls LB agents of the load balancing nodes to start load balancing software;
s4, the load balancing software issues related information;
s5, the system detects whether the unloading function of the load balance of the intelligent network card is started, if the detection result is yes, the step S6 is executed, and if the detection result is no, the step S7 is executed;
s6, downloading the related information to an intelligent network card;
and S7, ending the method.
Further, the command is to create a load balancer, and the load balancing software supports the load balancing offload function.
Preferably, the related information includes front-end and back-end information and a forwarding policy between the front-end and the back-end.
The invention has the advantages and beneficial effects that:
the invention provides a software and hardware combined network load balancing implementation system and a process method, wherein the system adopts a mode of combining load balancing software and an intelligent network card, so that the performance and the stability can be ensured, and the problem that the performance and the stability of the system cannot be ensured under the condition of only using the load balancing software in the prior art is solved; the intelligent network card is low in price and cost and can be put into use only by a small amount of adaptation development work, and the defects that in the prior art, under the condition that hardware such as F5 is used, the price is high, a large amount of adaptation development is needed, and a large amount of labor and time are needed are overcome; in addition, the invention also supports large-scale deployment on the cloud environment.
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FIG. 1 is a system block diagram of a system for implementing network load balancing according to the present invention;
fig. 2 is a flowchart of a process method of a software and hardware combined network load balancing implementation system according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the prior art, two schemes are usually adopted to realize network load balancing, one method is a scheme which only adopts HaProxy and Ngnix load balancing software, but the performance and the stability cannot be ensured; another solution is to use hardware such as F5, which is expensive, and usually requires a lot of adaptation development, which requires a lot of labor and time. Therefore, the use requirements cannot be well met by either a software scheme or a hardware scheme in the prior art.
The invention provides a software and hardware combined network load balancing implementation system, which solves the problems in the prior art by combining load balancing software and an intelligent network card.
The load balancing implementation system mainly comprises a control node and a load balancing node, wherein the control node is mainly used for creating conditions for issuing commands, the commands are issued to the load balancing node through the control node to control the load balancing node, the load balancing node is mainly used for downloading relevant information, strategies and rules of the front end and the rear end to the intelligent network card, the intelligent network card can firstly process external requests, and the external requests which cannot be processed are forwarded to the kernel space for processing.
As shown in fig. 1, the control node mainly includes an API server and an LB server. The API server refers to an interface of an application program, is a predefined function, or refers to a convention for linking different components of a software system. The purpose is to provide the ability for applications and developers to gain access to a set of routines based on tools without having to access native code or understand the details of internal working mechanisms; the LB server refers to a load balancing server.
The API server provides an REST interface to operate the load balancer, the REST interface refers to a representational state transfer and is also a software architecture style, and an REST mode is simpler than other modes; the LB server means a server that receives a command of the API server to implement a load balancer on the cloud environment.
The load balancing node mainly comprises an operating space of a user program and an application space of a kernel, and for the safety of the system, the operating space of the user program and the application space of the kernel are isolated from each other, namely, the used application program has problems and the application space of the kernel is not influenced.
The running space of the user program mainly comprises an LB proxy and a load balancing transfer piece. The LB agent refers to an agent for load balancing, and the corresponding LB server of the LB server manages the load balancer on the load balancing node; the load balancing software mainly comprises HaProxy, Ngnix and other software, and the load balancing software can support the load balancing unloading function and can be called by the LB agent.
The intelligent network card is arranged in the kernel operation space, a kernel load balancing data channel is arranged in the kernel, an unloading load balancing data channel is arranged in the intelligent network card, and data in the load balancing data channel in the kernel can be downloaded to the unloading load balancing data channel. Specifically, the kernel load balancing data channel includes information of a front end and information of a back end issued by the load balancing software, and a policy and a rule for forwarding the front end to the back end.
That is, the control node is coupled to the load balancing control node. The control node comprises an API server and an LB server. The load balancing node comprises a user space, a kernel space and an intelligent network card; the user space comprises an LB agent and load balancing software; the intelligent network card space comprises a kernel load balancing data channel, and the kernel load balancing data channel contains data information issued in load balancing software; the intelligent network card comprises an unloading load balancing data channel, and the unloading load balancing data channel comprises data information downloaded from the kernel load balancing data channel.
The software and hardware combined network load balancing implementation system has the following creation flow sequence:
and sending a command for establishing load balancing operation, wherein the command is input through an REST interface provided by an API server, an LB server receives the command provided by the API server, an LB agent responds to the LB server and manages load balancing software on the node, the load balancing software is called by the LB agent to issue data information to a kernel load balancing data channel of a kernel space, and then the data information is downloaded to an unloading load balancing data channel of the intelligent network card, and the data information is front-end related information, rear-end related information and a strategy.
Besides the created commands, the above-mentioned flow sequence is also applicable to updated commands and deleted commands, and only the corresponding command contents and data information need to be adjusted.
The intelligent network card has the function that the intelligent network card can enable network data packets to be preferentially matched with load balancing information unloaded from the network card. If the information on the network card can be completely matched with the data packet, the data packet can be directly modified and forwarded on the network card, and finally, the data packet directly flows out of the load balancing node and does not enter the kernel any more; if the intelligent network card can not completely match the data packet, the data packet enters a kernel network protocol stack, enters a kernel load balancing data channel in a kernel, is matched, modified and forwarded in the kernel, and then flows out of a load balancing node after entering the intelligent network card.
The forwarding path of the network data with balanced load can be obviously reduced by the scheme of combining the intelligent network card and the load balancing software; compared with the scheme only adopting the load balancing software, the scheme combining the intelligent network card and the load balancing software has the advantages that the throughput, the stability and other network performances of the load balancer can be remarkably improved, and meanwhile, the network delay is remarkably reduced; compared with the scheme adopting hardware such as F5 and the like, the scheme combining the intelligent network card and the load balancing software has almost the same performance as the latter, the price cost of the intelligent network card is far lower than that of the hardware such as F5 and the like, in the aspect of adaptation, the former only needs to add the function of unloading the network card on the existing mature load balancing software, the workload of adaptation development is small, and a large amount of manpower and material resources are saved; in addition, the scheme of combining the intelligent network card and the load balancing software supports large-scale deployment in a cloud environment.
The invention overcomes the problem that the performance and the stability of the system can not be ensured under the condition of only using load balancing software in the prior art; the defects that in the prior art, under the condition that hardware such as F5 is used, price is high, a large amount of adaptation development is needed, and a large amount of labor and time are needed are overcome.
The invention also provides a process method for realizing the system by the network load balance combining software and hardware.
The method comprises the steps that firstly, the unloading function of load balancing of the intelligent network card needs to be started, the unloading function of load balancing of the intelligent network card unloads a data packet to the intelligent network card, the intelligent network card processes matching work of the data packet by itself, only under the condition that the intelligent network card cannot process the matching work of the data packet by itself, the data packet which cannot be processed is sent to a load balancing data channel in a kernel space, the data packet is matched, modified and forwarded in the kernel, and the data packet enters the intelligent network card again and flows out of a load balancing node.
The LB proxy is further required to start load balancing software according to the content of the operation command, and the load balancing software issues data information related to the content of the operation command. When the operation command is creation, the data information can be front-end information, back-end information and strategies and rules adopted when the front-end sends information to the back-end, and when the operation command is update or deletion, the data information can be changed according to the change of the operation command.
When the system detects that the load balancing unloading function of the intelligent network card is started, the data information is transmitted to the hook function of the intelligent network card and then downloaded to the intelligent network card, and the intelligent network card can process and match the unloaded data packet according to the downloaded data information.
The invention discloses a process method for a network load balancing realization system with the combination of software and hardware, which mainly comprises the following steps as shown in figure 1:
s1, installing load balancing software and an intelligent network card which support a load balancing unloading function on a load balancing node, wherein the load balancing software can be one of Haproxy software and Ngnix software which are commonly adopted in the market, or other load balancing software with the load balancing unloading function, can be selected according to actual working conditions, and is low in cost, strong in performance, strong in stability and simple to operate, and the load balancing unloading software in the method is optimized;
s2, sending a command, wherein the API server provides an REST interface to operate a network load balancing implementation system, the command can comprise creation, updating and deletion, the command can also comprise others, and the command needs to be sent to an LB server through the API server;
s3, the LB server receives the command to select one load balancing node, calls LB processing on the load balancing node to create a load balancer, and correspondingly can also command updating of the load balancer and deletion of the load balancer and realize other functions according to the command;
step S4. after the LB processing software receives the remote call of the LB server, the load balancing software supporting the load balancing unloading function of the node is started, such as HaProxy software, the HaProxy software issues data information related to the created command to a kernel load data channel in a kernel space, the data information can comprise front-end information, back-end information and a strategy, and can also comprise other information, besides, the HaProxy software can also send data information comprising information which is the same as or different types of information with the created command and different data contents according to the deleted or updated or other types of commands;
s5, the system automatically detects whether the load balancing function of the intelligent network card is started, if the detection result is yes, the load balancing function of the intelligent network card is started, the intelligent network card can unload the data packet to the intelligent network card for processing and matching, the step S6 is executed, and if the detection result is no, the step S7 is executed;
s6, transmitting data information, such as front-end information, back-end information and strategies, in a kernel load balancing data channel of the kernel space to a hook function of the network card according to a deleting or updating or other types of commands, namely data information and different data contents which comprise information of the same type or different types as the creating command, and then downloading the data information into the intelligent network card;
and S7, ending the method.
It should be mentioned that the adaptation work mainly refers to improvement on load balancing software to support the network card load balancing unloading function; the method mainly takes the created command as an embodiment, and the data information is front-end information, back-end information and a policy.
The system and the method are realized in a cloud environment, the cloud management software does not need to be modified in the adaptation process, the upper layer interface of the cloud management software is suitable for the system and can be changed, seamless adaptation can be realized, the adaptation work mainly reflects the improvement of the load balancing software, the network card load balancing unloading function is supported, the adaptation work is obviously less than the scheme of adopting hardware such as F5 and the like on the whole, and the large-scale deployment in the cloud environment can be supported.
Besides the beneficial effects of the invention, the intelligent network card can complete most of processing and matching work, obviously shares the workload of kernel space, improves performance and ensures stability, and in addition, the cost of the intelligent network card is far lower than that of hardware such as F5 and the like.
The problems that in the prior art, the performance, the stability and the like of a scheme only adopting load balancing software cannot be guaranteed, the price of a scheme only adopting hardware such as F5 is high, a large amount of adaptation development is usually required, and a large amount of labor and time are required are solved.
The invention can support large-scale deployment in the cloud environment besides overcoming the problems in the prior art.
The invention can well meet the use requirements of users.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A network load balancing implementation system combining software and hardware comprises a control node and a load balancing node, wherein the control node sends a command to the load balancing node, the load balancing node comprises a load balancer, and the load balancing node implements operation and management of the load balancer;
the network load balancing implementation system is characterized by further comprising an intelligent network card, wherein the intelligent network card is arranged at the load balancing node and supports load balancing unloading.
2. The system according to claim 1, wherein the control node comprises an API server and an LB server.
3. The system according to claim 2, wherein the API server provides REST interface to input commands, the commands including create, delete, update, etc.
4. The system according to claim 2, wherein the LB server receives the command from the API server and forwards the command to the load balancing node.
5. The system according to claim 1, wherein the load balancing node further comprises a user space and a kernel space, and the user space and the kernel space are isolated from each other.
6. The system of claim 5, wherein the user space comprises load balancing software supporting load balancing offload functions, and further comprises an LB agent, and the LB agent manages the load balancer in response to commands from an LB server.
7. The system according to claim 5, wherein the kernel space comprises a front end, a policy and a back end, and the front end applies the policy to distribute external requests to the back end.
8. A process method for realizing a system by network load balance combined by software and hardware is characterized by comprising the following steps:
s1, installing load balancing software and an intelligent network card, and starting a load balancing unloading function of the intelligent network card;
s2, the command is required to be sent to an LB server through an API server;
s3, the LB server selects the load balancing nodes and calls LB agents of the load balancing nodes to start load balancing software;
s4, the load balancing software issues related information;
s5, the system detects whether the unloading function of the load balance of the intelligent network card is started, if the detection result is yes, the step S6 is executed, and if the detection result is no, the step S7 is executed;
s6, downloading the related information to an intelligent network card;
and S7, ending the method.
9. The process method of the software and hardware combined network load balancing implementation system according to claim 8, wherein the command is to create a load balancer, and the load balancing software supports an offloading function of load balancing.
10. The method according to claim 9, wherein the related information includes front-end and back-end information and forwarding policy between the front-end and the back-end.
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| US11444783B2 (en) | 2020-07-08 | 2022-09-13 | Alipay (Hangzhou) Information Technology Co., Ltd. | Methods and apparatuses for processing transactions based on blockchain integrated station |
| US11463553B2 (en) | 2020-07-08 | 2022-10-04 | Alipay (Hangzhou) Information Technology Co., Ltd. | Methods and apparatuses for identifying to-be-filtered transaction based on blockchain integrated station |
| US11665234B2 (en) | 2020-07-08 | 2023-05-30 | Alipay (Hangzhou) Information Technology Co., Ltd. | Methods and apparatuses for synchronizing data based on blockchain integrated station |
| US11783339B2 (en) | 2020-07-08 | 2023-10-10 | Alipay (Hangzhou) Information Technology Co., Ltd. | Methods and apparatuses for transferring transaction based on blockchain integrated station |
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