WO2018192403A1 - Method and apparatus for loading and optimizing bind configuration, medium, and computer device - Google Patents

Abstract

Disclosed are a method and apparatus for loading and optimizing a BIND configuration, a medium, and a computer device. The method comprises: in the process of parsing a parsing group configuration file of a view, parsing a parsing group domain name list of the parsing group configuration file; for each parsing group domain name in the parsing group domain name list, searching the parsing group domain name list of the parsing group configuration file of the view loaded for the parsing group domain name; and when the parsing group domain name is found, putting a pointer of a data structure of the saved parsing group domain name under a current view, and when the parsing group domain name is not found, parsing the parsing group domain name and saving the corresponding data structure. The present invention can effectively improve the loading efficiency, and can effectively control a CPU occupancy rate of a DNS process, and reduce the load.

Description

BIND configuration loading optimization method, device, medium and computer equipment

This application claims the priority of the Chinese Patent Application entitled "A BIND Configuration Loading Optimization Method and Apparatus" filed on April 19, 2017, the Chinese Patent Office, the number of which is hereby incorporated by reference. In the application.

Technical field

The embodiments of the present invention relate to the field of Internet technologies, and in particular, to a BIND configuration loading optimization method, apparatus, medium, and computer device.

Background technique

Domain name resolution is a technology that points a domain name to an Internet Protocol (IP) address of a website space, allowing users to easily access the website through a registered domain name. The domain name resolution is done by the Domain Name System (DNS) server.

With the development of Internet technology, the Content Delivery Network (CDN) technology has been introduced for the acceleration of network content access. Intelligent DNS is one of the key components of CDN. In the field of CDN services, users who need to access the network to their own access usually configure an alias record (for example: www.163.com.aaa.com) for the website address (for example: www.163.com). The domain name in the alias record (CNAME) belongs to the CDN service provider, and the A record is specified by the CDN service provider for the domain name recorded by the alias. In this way, the result of domain name resolution of the original domain name that needs to be accelerated by access is controlled by the CDN service provider, thereby achieving the effect of optimizing access.

In order to configure different domain name intelligent configurations according to different regions or service needs, the CDN service provider needs to set different group views and configure differentiated intelligent DNS services according to different views. Different views contain the same multiple resolution group profiles and multiple split view profiles that are differentiated. A DNS server that provides intelligent resolution and authoritative response, mainly using the BIND software system. Due to the large number of views, you need to load the configuration by loading the same resolution group configuration file and the different disassembly view domain name configuration files in each view, and the different parsing group configuration includes the universally imported content through INCLUDE. The configuration file and other independent configuration contents, because the content of the common configuration file is large, the time for loading the parsing group is too long, and the intelligent DNS server starts loading more time-consuming, which seriously affects the quality of the intelligent DNS service, so that the CDN service user experience is poor.

There are two existing techniques for optimizing BIND configuration loading:

One is to make adjustments from the configuration structure and perform configuration layering. The first layer resolves the domain name list of the parsing group, and the second layer parses the domain name list of the split view. This way, it can be implemented without modifying the BIND software at all, but its loading efficiency is low. At the same time, after the configuration is layered, if the number of DNS servers is the same, the domain name resolution of the complete resolution group is performed. Since two different levels of DNS servers are required, the QPS of each DNS server will be doubled. When the equivalent level is large, it will affect the quality of the DNS resolution service. If the QPS value of the DNS server is consistent, it is required to add a corresponding number of DNS servers, which increases the cost.

The other is to load the configuration concurrently by view. This method has better loading efficiency, which is significantly larger than the first method, and the larger the concurrency, the better the loading efficiency. However, the larger the amount of concurrency, the more CPU the DNS process occupies. For cost reasons, multiple services are required to run on the same server at the same time. In this way, the DNS process takes up too much CPU, even if the duration is very short, it will have unpredictable impact on other services on the same machine.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

In order to solve the above technical problem, the present invention provides a BIND configuration loading optimization method, including:

In the process of parsing the parsing group configuration file of a view, parsing the parsing group domain name list of the parsing group configuration file, and configuring the parsing group of the completed loading view for each parsing group domain name in the parsing group domain name list Searching for the domain name of the parsing group in the domain name list of the file. When the domain name of the parsing group is found, the pointer of the data structure of the parsed group domain name saved in the current view is not found. When the group name is resolved, the domain name of the parsing group is parsed and the corresponding data structure is saved.

The above method also has the following characteristics:

The method further includes: in the process of parsing the parsing group configuration file of a view, when it is required to load a general configuration file of the parsing group domain name in the resolving group domain name list, determine whether the parsing group domain name has been parsed and the common configuration is saved. The parsing result of the file, if not, parsing the general configuration file and saving the parsing result, and if so, loading the parsed result of the saved general configuration file.

The above method also has the following characteristics:

In the method, when the parsing group domain name is parsed and the corresponding data structure is saved, the data structure is uniquely identified.

The above method also has the following characteristics:

When the general configuration file is parsed and the parsing result is obtained, the parsing result is maintained using a global memory structure.

The invention also provides a BIND configuration loading optimization device, comprising:

a parsing module, configured to parse a parsing group domain name list of the parsing group configuration file in a process of parsing a parsing parsing group configuration file;

The locating module is configured to search for the resolving group domain name in the resolving group domain name list of the parsing group configuration file of the loaded view for each resolving group domain name in the resolving group domain name list;

The processing module is configured to: when the search module finds the domain name of the resolving group, the pointer of the saved data structure of the resolving group domain name is mounted in the current view, and the domain name is not found when the domain name of the parsing group is not found. The group domain name is parsed and the data structure is saved.

The above device also has the following features:

The device also includes a determination module;

The determining module is configured to: when the parsing module parses the parsing group configuration file of a view, when the parsing group domain name list needs to be loaded into a common configuration file of the parsing group domain name, determine whether the parsing group domain name is resolved. And save the parsing result of the general configuration file;

The processing module is further configured to: when the determination result of the determination mode is negative, parse the general configuration file and save the analysis result, and when the determination result of the determination mode is yes, load the saved general configuration. The result of parsing the file.

The above device also has the following features:

The processing module is further configured to uniquely identify the data structure when parsing the domain name of the parsing group and saving the corresponding data structure.

The above device also has the following features:

The processing module is further configured to maintain the parsing result using a global memory structure.

The present invention provides a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of the above method.

The computer device provided by the present invention comprises a memory, a processor and a computer program stored on the memory and operable on the processor, and the processor implements the steps of the method when the program is executed.

The present invention solves the following problems:

1) The configuration time of loading the parsing group is too long, resulting in a long time for the intelligent DNS to load and parse the service domain name, which brings about a problem of poor CDN service customer experience.

2) In the prior art, the CPU usage of the server caused by the concurrent task is high, and the quality jitter is affected by other services used by the machine.

The embodiment of the invention can effectively improve the loading efficiency, and effectively control the CPU usage of the DNS process and reduce the load.

DRAWINGS

The accompanying drawings are intended to provide a further understanding of the embodiments of the embodiments of the invention Improper limitations. In the drawing:

1 is a flowchart of a BIND configuration load optimization method in an embodiment;

2 is a structural diagram of a BIND configuration load optimization apparatus in the embodiment.

detailed description

The embodiments of the present invention will be further described with reference to the drawings and specific embodiments.

1 is a flowchart of a BIND configuration load optimization method in an embodiment; the method includes:

Step 101: In the process of parsing a parsing group configuration file of a view, parsing a resolving group domain name list of the parsing group configuration file;

Step 102: Search for the domain name of the resolving group in the resolving group domain name of the parsing group configuration file of the view that has been loaded in the domain name of the resolving group domain name. When the domain name of the resolving group is found, The saved pointer of the data structure of the domain name of the resolution group is mounted in the current view. When the domain name of the resolution group is not found, the domain name of the resolution group is parsed and the corresponding data structure is saved.

The data structure is uniquely identified when the parsing group domain name is parsed and the corresponding data structure is saved.

In this method, after the loading and parsing of each parsing group domain name is completed for the first view, the generated data structure is completely independent and identifiable. Therefore, the subsequent search results of the same parsing group domain name are known to exist, and the pointer multiplexing is simple and error-prone.

The method further includes: in the process of parsing the parsing group configuration file of a view, when it is required to load a common configuration file of the parsing group domain name in the resolving group domain name list, determine whether the parsing group domain name has been parsed and the general configuration file is saved. The result of the analysis, if not, parses the generic configuration file and saves the parsing result, and if so, loads the parsed result of the saved generic configuration file.

When the general configuration file is parsed and the analysis result is obtained, the analysis result is maintained using the global memory structure. Therefore, the subsequent parsing group domain name saves the time for parsing the common configuration file, and the ready-made interface function can complete the saved parsing result and import the domain name data structure.

2 is a structural diagram of a BIND configuration load optimization apparatus in an embodiment; the apparatus includes: a parsing module, a lookup module, and a processing module.

The parsing module is configured to parse the parsing group domain name list of the parsing group configuration file in the process of parsing the parsing group configuration file of a view;

The locating module is configured to search for the resolving group domain name in the resolving group domain name list of the parsing group configuration file of the loaded view for each resolving group domain name in the resolving group domain name list;

The processing module is configured to: when the lookup module finds the domain name of the resolving group, the pointer of the saved data structure of the resolving group domain name is in the current view, and the resolving group is not found when the resolving group domain name is not found. The domain name is parsed and the data structure is saved.

The device also includes a determination module. The determining module is configured to: when the parsing module parses the parsing group configuration file of a view, when it is required to load a common configuration file of the parsing group domain name in the parsing group domain name list, determine whether the parsing group domain name has been parsed and saved. The parsing result of the generic configuration file. The processing module is further configured to: when the determination result of the determination mode is negative, parse the general configuration file and save the analysis result, and when the determination result of the determination mode is yes, load the saved general configuration file. Analyze the results.

The processing module is also used to uniquely identify the data structure when parsing the domain name of the parsing group and saving the corresponding data structure.

The processing module is further configured to maintain the parsing result using a global memory structure.

Specific embodiment

Two views are included in the system. The first view consists of 2 parsing groups. The second view consists of 3 parsing groups.

After the domain name resolution is complete, the data structure corresponding to each domain name is mounted in the first view.

When parsing the first parsing group domain name of the first view, parsing and saving the common configuration file, and performing regular parsing on other contents of the context of the common configuration file of the first parsing group domain name.

When parsing the second resolving group domain name of the first view, it is determined whether the parsing group domain name has been parsed and the parsing result of the common configuration file is saved, and the first parsing group domain name for the first view is queried. If the parsing result of the common configuration file is saved during parsing, the parsing of the common configuration file for the domain name of the second parsing group is skipped, and the saved parsing result is directly obtained, and the data structure of the second parsing group domain name is imported.

The other operations in the first view are parsed and the same operations are performed, and are not described here.

For the second view, find the domain name of the resolution group in the resolution group domain name of the resolution group configuration file of the view that has been loaded, and find the first view that has been loaded. The domain name of the resolving group contains the domain name of the resolving group. The data structure of the domain name of the resolving group is saved in the current view. The domain name of the resolving group is skipped. If the name of the resolution group domain name of the first view that has been loaded is not found, the domain name of the resolution group is normally parsed and loaded.

For the parsing of the common configuration file of the resolving group domain name of the second view, the same processing method as that of the first view is used, and details are not described herein again.

The present invention solves the following problems:

1) The configuration time of loading the parsing group is too long, resulting in a long time for the intelligent DNS to load and parse the service domain name, which brings about a problem of poor CDN service customer experience.

2) In the prior art, the CPU usage of the server caused by the concurrent task is high, and the quality jitter is affected by other services used by the machine.

The invention has the following advantages:

1) Performing load parsing on the domain name list of the parsing group only, and other views directly multiplexing the parsing result of the domain name of the corresponding parsing group, which greatly reduces the time consumption of resolving and parsing the domain name of the parsing group;

2) When doing the domain name resolution of the parsing group (only once), the content of the common configuration file is only parsed once, and the domain name multiplexing of other parsing groups is imported into the intermediate result of the parsing, thereby further reducing the time consumption of resolving the parsing of the domain name of the parsing group. ;

3) Load the configuration file serially according to the view, strictly control the CPU usage to about 100%, effectively reducing the impact on other services used by the combination machine;

4) Optimized the memory usage of the DNS process, effectively reducing the impact on other services used by the machine.

A person skilled in the art should understand that the technical solutions of the present invention may be modified or equivalent, without departing from the spirit and scope of the present invention, and should be included in the scope of the claims.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

Industrial applicability

The embodiment of the invention can effectively improve the loading efficiency, and effectively control the CPU usage of the DNS process and reduce the load.

Claims (10)

A BIND configuration load optimization method, including: In the process of parsing the parsing group configuration file of a view, parsing the parsing group domain name list of the parsing group configuration file, and configuring the parsing group of the completed loading view for each parsing group domain name in the parsing group domain name list Searching for the domain name of the parsing group in the domain name list of the file. When the domain name of the parsing group is found, the pointer of the data structure of the parsed group domain name saved in the current view is not found. When the group name is resolved, the domain name of the parsing group is parsed and the corresponding data structure is saved. The BIND configuration load optimization method according to claim 1, wherein The method further includes: in the process of parsing the parsing group configuration file of a view, when it is required to load a general configuration file of the parsing group domain name in the resolving group domain name list, determine whether the parsing group domain name has been parsed and the common configuration is saved. The parsing result of the file, if not, parsing the general configuration file and saving the parsing result, and if so, loading the parsed result of the saved general configuration file. The BIND configuration load optimization method according to claim 1, wherein In the method, when the parsing group domain name is parsed and the corresponding data structure is saved, the data structure is uniquely identified. The BIND configuration load optimization method according to claim 2, wherein When the general configuration file is parsed and the parsing result is obtained, the parsing result is maintained using a global memory structure. A BIND configuration load optimization device, comprising: a parsing module, configured to parse a parsing group domain name list of the parsing group configuration file in a process of parsing a parsing parsing group configuration file; The locating module is configured to search for the resolving group domain name in the resolving group domain name list of the parsing group configuration file of the loaded view for each resolving group domain name in the resolving group domain name list; The processing module is configured to: when the search module finds the domain name of the resolving group, the pointer of the saved data structure of the resolving group domain name is mounted in the current view, and the domain name is not found when the domain name of the parsing group is not found. The group domain name is parsed and the data structure is saved. The BIND configuration load optimization device of claim 5, wherein the device further comprises a determination module; The determining module is configured to: when the parsing module parses the parsing group configuration file of a view, when the parsing group domain name list needs to be loaded into a common configuration file of the parsing group domain name, determine whether the parsing group domain name is resolved. And save the parsing result of the general configuration file; The processing module is further configured to: when the determination result of the determination mode is negative, parse the general configuration file and save the analysis result, and when the determination result of the determination mode is yes, load the saved general configuration. The result of parsing the file. The BIND configuration load optimization device according to claim 5, wherein The processing module is further configured to uniquely identify the data structure when parsing the domain name of the parsing group and saving the corresponding data structure. The BIND configuration load optimization device according to claim 6, wherein The processing module is further configured to maintain the parsing result using a global memory structure. A computer readable storage medium having stored thereon a computer program, the program being executed by a processor to perform the steps of the method of any one of claims 1 to 4. A computer apparatus, comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the program to implement the claims 1 to 4 The steps of any of the methods described.

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