CN112564993B - Method, apparatus, medium, and device for detecting bandwidth jitter - Google Patents
Method, apparatus, medium, and device for detecting bandwidth jitter Download PDFInfo
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- CN112564993B CN112564993B CN201910909153.0A CN201910909153A CN112564993B CN 112564993 B CN112564993 B CN 112564993B CN 201910909153 A CN201910909153 A CN 201910909153A CN 112564993 B CN112564993 B CN 112564993B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
- H04L43/0894—Packet rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The present invention relates to a method, device, medium and apparatus for detecting bandwidth jitter, the method comprising: acquiring area information in bandwidth resource coverage information of a node according to the information of the node generating bandwidth jitter; inquiring the actual bandwidth of the user in the area corresponding to the area information; detecting whether the actual bandwidth jitter value of the user in the area is smaller than a preset threshold value or not; and determining the reason of the node bandwidth jitter according to the detection result. The method is based on a plurality of factors causing the node bandwidth jitter, the reason of the node bandwidth jitter is rapidly determined, and a series of artificial complex operations are avoided.
Description
Technical Field
The present invention relates to the field of CDNs, and in particular, to a method, an apparatus, a medium, and a device for detecting bandwidth jitter.
Background
In the operation process of a CDN manufacturer, bandwidth jitter of some nodes often occurs, and when bandwidth jitter of a node occurs, there is no good method for quickly detecting and determining the cause of the bandwidth jitter.
Disclosure of Invention
To solve the above-described problems, the present invention provides a method, apparatus, medium, and device for determining bandwidth jitter.
The method for detecting the bandwidth jitter provided by the invention comprises the following steps:
acquiring area information in bandwidth resource coverage information of a node according to the information of the node generating bandwidth jitter;
inquiring the actual bandwidth of the user in the area corresponding to the area information;
detecting whether the actual bandwidth jitter value of the user in the area is smaller than a preset threshold value or not;
and determining the reason of the node bandwidth jitter according to the detection result.
The method for detecting the bandwidth jitter further comprises the following steps:
before the actual bandwidth of the user in the region corresponding to the region information is inquired, acquiring domain name information in the node bandwidth resource coverage information, inquiring the domain name bandwidth use condition corresponding to the domain name information, and determining a domain name generating bandwidth jitter; and the actual bandwidth of the users in the region is the bandwidth generated by the users in the region accessing the domain name with the bandwidth jitter.
The determining the reason for the node bandwidth jitter according to the detection result comprises:
if the detection result is that the actual bandwidth jitter value of the user in the region is larger than the preset threshold value, determining that the reason of the node bandwidth jitter is the jitter of the domain name;
and if the detection result is that the actual bandwidth jitter value of the user in the area is smaller than the preset threshold value, determining the reason of node bandwidth jitter according to single-area jitter or multi-area jitter.
When the actual bandwidth jitter value of the user in the area is smaller than a preset threshold, determining whether the user is single-area jitter or multi-area jitter comprises:
when the area is an area, determining the area to be single-area jitter;
when the area is a plurality of areas, the jitter condition of the domain name bandwidth is tested one by one when the bandwidth resources of the independent nodes in any area of the plurality of areas are tested one by one; if the test of more than two of the multiple areas results in the bandwidth jitter of the domain name, determining the domain name to be multi-area jitter, otherwise, determining the domain name to be single-area jitter.
And when the determination result is single-region jitter, inquiring a bandwidth acquisition center to acquire the bandwidth of a client machine in the region, and determining the reason of node bandwidth jitter caused by uneven polling of local DNS (domain name system) analysis or no polling of local DNS analysis according to the bandwidth use condition of the client machine.
And when the determination result is multi-region jitter, determining the reason of node bandwidth jitter, which is caused by region scheduling error or inconsistent cache library, according to whether the regions causing the domain bandwidth jitter are in the same province.
The invention provides a bandwidth jitter detection device, comprising:
the area information acquisition module is used for acquiring area information in the bandwidth resource coverage information of the node according to the information of the node generating the bandwidth jitter;
the area bandwidth inquiry module is used for inquiring the actual bandwidth of the user in the area corresponding to the area information;
the detection module is used for detecting whether the actual bandwidth jitter value of the user in the area is smaller than a preset threshold value or not;
and the determining module is used for determining the reason of the node bandwidth jitter according to the detection result.
The detection device further comprises:
a domain name information obtaining module, configured to obtain domain name information in the node bandwidth resource coverage information;
the domain name bandwidth inquiry module is used for inquiring the domain name bandwidth use condition corresponding to the domain name information;
the jitter domain name determining module is used for determining a domain name with bandwidth jitter;
and the actual bandwidth of the users in the region is the bandwidth generated by the users in the region accessing the domain name with the bandwidth jitter.
The determining module determines the reason for the node bandwidth jitter according to the detection result, including:
if the detection result is that the actual bandwidth jitter value of the user in the region is larger than the preset threshold value, determining that the reason of the node bandwidth jitter is the jitter of the domain name;
and if the detection result is that the actual bandwidth jitter value of the user in the area is smaller than the preset threshold value, determining the reason of node bandwidth jitter according to single-area jitter or multi-area jitter.
When the actual bandwidth jitter value of the user in the area is smaller than a preset threshold value, the determining module detects whether the user is in single-area jitter or multi-area jitter, including:
when the area is an area, determining the area to be single-area jitter;
when the area is a plurality of areas, the jitter condition of the domain name bandwidth is tested one by one when the bandwidth resources of the independent nodes in any area of the plurality of areas are tested one by one; if the test of more than two of the multiple areas results in the bandwidth jitter of the domain name, determining the domain name to be multi-area jitter, otherwise, determining the domain name to be single-area jitter.
And when the determination result is single-region jitter, inquiring a bandwidth acquisition center to acquire the bandwidth of a client machine in the region, and determining the reason of node bandwidth jitter caused by uneven polling of local DNS (domain name system) analysis or no polling of local DNS analysis according to the bandwidth use condition of the client machine.
And when the determination result is multi-region jitter, determining the reason of node bandwidth jitter, which is caused by region scheduling error or inconsistent cache library, according to whether the regions causing the domain bandwidth jitter are in the same province.
The method is used for rapidly determining the reason of the bandwidth jitter of the node based on a plurality of factors causing the bandwidth jitter, and avoiding a series of artificial complex operations.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.
FIG. 1 is a flow diagram illustrating a method of bandwidth jitter detection in accordance with an exemplary embodiment;
FIG. 2 is a flow diagram illustrating a method of bandwidth jitter detection in accordance with an exemplary embodiment;
FIG. 3 is a block diagram illustrating an apparatus for detecting bandwidth jitter according to an exemplary embodiment;
FIG. 4 is a block diagram illustrating an apparatus for detecting bandwidth jitter according to an exemplary embodiment;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In the operation process of a CDN manufacturer, bandwidth jitter of some nodes often occurs, and in this document, the occurrence of bandwidth jitter refers to a bandwidth jitter value being greater than a preset threshold value, or exceeding a normal range, and if the bandwidth jitter value is smaller than the preset threshold value, it is considered that the bandwidth is not jittered. When the bandwidth of a node is jittered, the processing is very time-consuming and not necessarily effective if no fast and comprehensive system is available for judgment. The method is effective, can quickly detect the node with the bandwidth jitter, determines the reason of the bandwidth jitter of the node, and can effectively solve the problem of the bandwidth jitter aiming at the reason of the bandwidth jitter of the node, thereby solving a lot of bandwidth cost problems for CDN manufacturers.
Fig. 1 is a flowchart of a method for detecting bandwidth jitter, and as shown in fig. 1, the method for detecting bandwidth jitter includes:
step S101, acquiring area information in bandwidth resource coverage information of a node according to information of the node generating bandwidth jitter;
step S102, inquiring the actual bandwidth of the user in the area corresponding to the area information;
step S103, detecting whether the actual bandwidth jitter value of the user in the area is smaller than a preset threshold value;
and step S104, determining the reason for the node bandwidth jitter according to the detection result.
The bandwidth resource coverage information is information recorded in a bandwidth resource coverage scheme, the bandwidth resource coverage scheme is different resource pools created according to different clients and can be managed conveniently, one resource coverage scheme comprises a plurality of domain names and a plurality of areas, the coverage information comprises domain name information and area information, each domain name corresponds to a plurality of areas, and each area also corresponds to a plurality of domain names. The resource covering scheme records the use information of each node and specific areas which use a certain node. For example, a resource coverage scheme U888 is established for client A and a resource coverage scheme U999 is established for client B. The information of the resource coverage schemes is stored in the resource data center, and after the node with bandwidth jitter is known, the resource data center can inquire which resource coverage schemes use the node and which areas use the node.
In this embodiment, the bandwidth resource coverage scheme using the node may be determined according to the known information of the node generating the bandwidth jitter, so as to obtain the bandwidth resource coverage information, and the area information using the node may be queried according to the bandwidth resource coverage information, so as to know which areas use the bandwidth resource of the node. And inquiring the actual bandwidth of the users in the areas through the client bandwidth information center. And when the actual bandwidth jitter value of the user in the area is smaller than the preset threshold value, detecting whether the actual bandwidth jitter value of the user in the area is smaller than the preset threshold value, and determining the reason of node bandwidth jitter according to the detection result. The preset threshold may be set to a specific value according to experience and actual conditions, or may be set to a percentage value of the area bandwidth jitter value to the node bandwidth jitter value, for example, 30% or 50%, where the specific value needs to be determined according to actual conditions, and is not limited herein.
In an embodiment, fig. 2 is a flowchart of a method for detecting bandwidth jitter, and as shown in fig. 2, the method for detecting bandwidth jitter further includes step S101 ', and before querying an actual bandwidth of a user in a region corresponding to the region information in step S102, step S101' obtains domain name information in the node bandwidth resource coverage information, queries a domain name bandwidth usage corresponding to the domain name information, and determines a domain name generating bandwidth jitter. The actual bandwidth of the users in the area in step S102 is the bandwidth generated by the domain name with jittered access bandwidth of the users in the area.
By querying the resource usage mapping table to determine the domain name using the resource coverage scheme, it can be known which domain names are using the nodes generating bandwidth jitter. For example, when bandwidth jitter occurs in a certain node, it is queried that the coverage scheme U888 and the coverage scheme U999 are using the node, and it is also queried that the area S1 and the area S2 use the node. The coverage scheme U888 comprises www.1.com and www.2.com domain names, and the coverage scheme U999 comprises a domain name www.3.com. Thus, the domain name information using the node resource is obtained: domain name www.1.com, domain name www.2.com, domain name www.3.com; and using the region information of the node: region S1 and region S2.
The domain name information is input into a bandwidth acquisition center, the bandwidth use condition of each domain name is obtained, and the specific bandwidth of which domain name is jittered can be seen. For example, through query, it is determined that bandwidth jitter occurs in domain name www.3.com, no bandwidth jitter occurs in domain name www.1.com and domain name www.2.com, and node bandwidth jitter is inevitably caused by bandwidth jitter occurring in domain name www.3.com, and only the domain name www.3.com with bandwidth jitter needs to be further detected, so that the query range can be narrowed, and the detection speed is increased. It should be noted that, at this time, the domain bandwidth is the bandwidth used by the domain name on the queried switch, and whether the bandwidth of the domain name is jittered is determined according to whether the jittering value of the domain bandwidth is greater than the preset threshold.
In order to further determine the cause of the bandwidth jitter, step S102 inquires the actual bandwidth of the user in the area corresponding to the area information, and determines the actual bandwidth usage of the user in each area. The zone S1 and the zone S2 using the node are determined in step S101, and the domain name www.3.com is determined to be a bandwidth dithering domain name in step S101'. The customer bandwidth information center can be reached to query the area for the actual bandwidth of the user generated by user access domain name www.3.com.
According to the detection result, the determining the reason for the node bandwidth jitter comprises the following steps:
if the detection result is that the actual bandwidth jitter value of the user in the region is larger than the preset threshold value, determining that the reason of the node bandwidth jitter is the jitter of the domain name;
and if the detection result is that the actual bandwidth jitter value of the user in the area is smaller than the preset threshold value, determining the reason of node bandwidth jitter according to single-area jitter or multi-area jitter.
If there is bandwidth fluctuation in the actual access bandwidth of the users in one or both of the areas S1 and S1, it may be that the users in the area watch the same type of video programs at the same time, or that a large number of users download videos or games in the same time period, and the traffic generated when the users access the website corresponding to the domain name may be different depending on the time period, such as when the website is a video website or a download website. If the bandwidth is actually used by the users in each region corresponding to the domain name inquiring the bandwidth jitter, when the bandwidth jitter occurs in the actual bandwidth of the user in any region, the bandwidth jitter is caused because the access amount of the user in the region is suddenly increased in the period of time, and the reason causing the bandwidth jitter of the node can be determined to be the bandwidth jitter of the domain name, and the bandwidth jitter of the domain name does not need to be further processed.
In one embodiment, when the actual bandwidth jitter value of the user of the zone is smaller than a preset threshold, it is determined whether the user is single-zone jitter or multi-zone jitter. When inquiring the actual bandwidth of the user in the area, if the jitter value of the actual bandwidth of the user is smaller than the preset threshold value, that is, the actual bandwidth of the user is relatively stable, which indicates that the domain name jitter is not caused by the access amount of the user, then the reason causing the bandwidth jitter needs to be further detected.
In order to further detect the cause of the bandwidth jitter, it is further required to determine whether the node is single-region jitter or multi-region jitter, and determine the cause of the bandwidth jitter.
When the area is an area, the single-area dithering is performed;
when the area is a plurality of areas, the domain name bandwidth jitter condition is tested one by one when the independent node bandwidth resources of any one of the areas are tested; if the test of more than two areas in the plurality of areas causes the bandwidth jitter of the domain name, determining the bandwidth jitter as multi-area jitter, otherwise, determining the bandwidth jitter as single-area jitter.
When the detection result is single-region jitter, inquiring a bandwidth acquisition center to acquire the bandwidth of a client machine in the region; if the bandwidth is jittered among a plurality of machines in turn and bandwidth complementation occurs, the bandwidth jitter is caused by uneven local DNS polling due to excessive IP number used in the area; if the bandwidth is fixed on some machines in one TTL period and is fixed on other machines in the next TTL period, the reason of bandwidth jitter is that local DNS analysis does not carry out polling.
When the detection result is multi-region jitter, whether a plurality of regions with bandwidth jitter are in the same province or not is checked, and when the plurality of regions with bandwidth jitter are in the same province, the bandwidth jitter is caused by the influence of dividing province scheduling into a plurality of city scheduling; when a plurality of areas with bandwidth jitter are different provinces, the reason of the bandwidth jitter is that the client cache library and the scheduling library of the system have inconsistent IP attribution. For example, if a certain IP is considered by the system to be in the telecommunication Zhejiang, the given response is also in the telecommunication Zhejiang, and the IP library used by the customer is considered to be in the telecommunication Jiangsu, the access of the telecommunication Jiangsu in one period is all to the telecommunication Zhejiang, and the bandwidth of the telecommunication Zhejiang is jittered.
The present invention will be described in detail below with reference to specific examples.
Example one
In the operation process of a CDN manufacturer, a bandwidth jitter value of a CDN node is found to be larger than a preset threshold value, a resource data center is inquired according to the information of the node, and the node can be inquired that a resource coverage scheme U888 Baidu and U999 Tencent are using the node. The area covered by the node is Fujian Quanzhou, Fujian mansion.
Further, two domain names www.baidu.com, www.baidu2.com may be used in the resource covering scheme U888, and www.qqq.com may be used in the resource covering scheme U999.
The three domain names are input into a bandwidth acquisition center, and the respective domain name bandwidth use conditions of the three domain names can be seen. Assuming that the bandwidth jitter value of the domain name www.baidu2.com is greater than the preset threshold, it may be preliminarily determined that bandwidth jitter occurs in the U888 hectometre.
Further inquiring the bandwidth use condition of each region corresponding to the hundred-degree domain name www.baidu2.com, for example, inquiring to a user bandwidth center, and finding that the actual bandwidth jitter value of the user in the building door region corresponding to www.baidu2.com is greater than a preset threshold value, that is, the reason of jitter is caused by the access traffic of the user accessing the website, and the reason of output bandwidth jitter is the jitter of the domain name itself.
Example two
In the operation process of a CDN manufacturer, a bandwidth jitter value of a CDN node is found to be larger than a preset threshold value, a resource data center is inquired according to the information of the node, and the node can be inquired that a resource coverage scheme U888 Baidu and U999 Tencent are using the node. The area covered by the node is Fujian Quanzhou, Fujian mansion.
Further, two domain names www.baidu.com, www.baidu2.com may be used in the resource covering scheme U888, and www.qqq.com may be used in the resource covering scheme U999.
The three domain names are input into a bandwidth acquisition center, and the respective bandwidth use conditions of the three domain names can be seen. Assuming that the domain name www.baidu2.com has bandwidth jitter, it can be preliminarily determined that the U888 Baidu Fujian area has bandwidth jitter.
Further querying the actual bandwidth usage of each region corresponding to the hundred-degree domain name www.baidu2.com, for example, querying to a user bandwidth center, finding that the actual bandwidth of the user in each region corresponding to www.baidu2.com does not jitter, or the actual bandwidth jitter value of the user is smaller than a preset threshold, and at this time, further detecting whether the user is in single-region jitter or multi-region jitter. Because the node covers two areas, namely, the building door and the spring state, the users in the spring state area can use the bandwidth resource of the node exclusively, the domain bandwidth of www.baidu2.com is tested, and the domain bandwidth is not jittered any more. And then, the users in the building door area use the node bandwidth resource alone, the domain bandwidth of www.baidu2.com is tested, and the bandwidth jitter value is found to be larger than the preset threshold value, so that the single area jitter can be determined. Inquiring a bandwidth acquisition center to obtain the bandwidth of a client machine in a building area, and if the bandwidth of the client machine is alternated and complemented among a plurality of machines, the reason that the node bandwidth is jittered is that the local DNS is not uniformly polled due to the excessive number of the IP used in the area. Local DNS can be increased in a targeted mode to improve node bandwidth jitter conditions.
According to the above embodiments, by the method for determining bandwidth jitter herein, the cause of node bandwidth jitter can be determined quickly, and based on the determined cause of bandwidth jitter, measures can be taken in a targeted manner to improve the jitter of node bandwidth.
Fig. 3 is a block diagram of a bandwidth jitter detection apparatus, and referring to fig. 3, the bandwidth jitter detection apparatus includes: the system comprises an area information acquisition module 301, an area bandwidth query module 302, a detection module 303 and a determination module 304.
The area information acquiring module 301 is configured to acquire area information in bandwidth resource coverage information of a node according to information of the node generating bandwidth jitter.
The region bandwidth query module 302 is configured to query the user actual bandwidth of the region corresponding to the region information.
The detecting module 303 is configured to detect whether the actual bandwidth jitter value of the user in the area is smaller than a preset threshold.
The determining module 304 is configured to determine a cause of node bandwidth jitter according to the detection result.
Fig. 4 is a block diagram of a bandwidth jitter detection apparatus, and referring to fig. 4, the bandwidth jitter detection apparatus further includes: a domain name information obtaining module 401, a domain name bandwidth inquiring module 402, and a jittering domain name determining module 403.
The domain name information obtaining module 401 is configured to obtain domain name information in the node bandwidth resource coverage information.
The domain name bandwidth query module 402 is configured to query a domain name bandwidth usage corresponding to the domain name information.
The jittered domain name determination module 403 is configured to determine the domain name of the bandwidth jitter.
The actual bandwidth of the user in the area queried by the area bandwidth querying module 302 is the bandwidth generated by the user in the area accessing the domain name with bandwidth jitter.
The determining module determines the reason for the node bandwidth jitter according to the detection result, and comprises:
if the detection result is that the actual bandwidth jitter value of the user in the region is larger than the preset threshold value, determining that the reason of the node bandwidth jitter is the jitter of the domain name;
and if the detection result is that the actual bandwidth jitter value of the user in the area is smaller than the preset threshold value, determining the reason of node bandwidth jitter according to single-area jitter or multi-area jitter.
When the actual bandwidth jitter value of the user in the region is smaller than the preset threshold value, the detecting module detects whether the user in the region jitters in a single region or in multiple regions and comprises the following steps:
when the area is one area, determining the area as single-area jitter;
when the area is a plurality of areas, the domain name bandwidth jitter condition is tested one by one when the independent node bandwidth resources of any one of the areas are tested; if the test of more than two areas in the plurality of areas causes the bandwidth jitter of the domain name, determining the bandwidth jitter as multi-area jitter, otherwise, determining the bandwidth jitter as single-area jitter.
And when the determination result is single-region jitter, inquiring the bandwidth acquisition center to acquire the bandwidth of the client machine in the region, and determining the reason of node bandwidth jitter caused by uneven polling of local DNS analysis or no polling of local DNS analysis according to the bandwidth use condition of the client machine.
And when the determination result is multi-region jitter, judging whether the region scheduling error or the cache library inconsistency is caused by the node bandwidth jitter according to whether the region causing the domain bandwidth jitter is the same province or not.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
A computer-readable storage medium having stored thereon a computer program which, when executed, performs steps in a method of detecting bandwidth jitter.
A computer device comprising a processor, a memory and a computer program stored on said memory, the processor implementing the steps in the method for detecting bandwidth jitter when executing the computer program.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied in the medium. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, including, but not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by the computer, and the like. In addition, communication media typically embodies 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 includes any information delivery media as known to those skilled in the art.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. 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.
In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
While preferred embodiments of the present invention have been described, additional variations and modifications in those 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 preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (12)
1. A method for detecting bandwidth jitter, comprising:
acquiring area information in bandwidth resource coverage information of a node according to the information of the node generating bandwidth jitter;
inquiring the actual bandwidth of the user in the area corresponding to the area information;
detecting whether the actual bandwidth jitter value of the user in the area is smaller than a preset threshold value or not;
according to the detection result, determining the reason of node bandwidth jitter comprises the following steps:
if the detection result is that the actual bandwidth jitter value of the user in the region is larger than the preset threshold value, determining that the reason of the node bandwidth jitter is the jitter of the domain name;
and if the detection result is that the actual bandwidth jitter value of the user in the area is smaller than the preset threshold value, determining the reason of node bandwidth jitter according to single-area jitter or multi-area jitter.
2. The method for detecting bandwidth jitter of claim 1, further comprising:
before inquiring the actual bandwidth of the user in the area corresponding to the area information, acquiring domain name information in the node bandwidth resource coverage information, inquiring the use condition of the domain name bandwidth corresponding to the domain name information, and determining a domain name generating bandwidth jitter; and the actual bandwidth of the users in the region is the bandwidth generated by the users in the region accessing the domain name with the bandwidth jitter.
3. The method for detecting bandwidth jitter according to claim 2, wherein the determining whether to be single-region jitter or multi-region jitter when the actual bandwidth jitter value of the user in the region is smaller than a preset threshold comprises:
when the area is an area, determining the area to be single-area jitter;
when the area is a plurality of areas, the jitter condition of the domain name bandwidth is tested one by one when the bandwidth resources of the independent nodes in any area of the plurality of areas are tested one by one; if the test of more than two of the multiple areas results in the bandwidth jitter of the domain name, determining the domain name to be multi-area jitter, otherwise, determining the domain name to be single-area jitter.
4. The method for detecting bandwidth jitter according to claim 3, wherein when the determination result is single-zone jitter, the query bandwidth collection center obtains the bandwidth of the client machine in the zone, and determines that the cause of the node bandwidth jitter is non-uniform in local DNS analysis polling or not in local DNS analysis polling according to the bandwidth usage of the client machine.
5. The method according to claim 3, wherein when the determination result is multi-zone dithering, it is determined whether the cause of the node bandwidth dithering is due to zone scheduling error or inconsistent cache banks according to whether the zones causing the domain bandwidth dithering are the same province.
6. A detection apparatus for bandwidth jitter, comprising:
the area information acquisition module is used for acquiring area information in the bandwidth resource coverage information of the node according to the information of the node generating the bandwidth jitter;
the area bandwidth inquiry module is used for inquiring the actual bandwidth of the user in the area corresponding to the area information;
the detection module is used for detecting whether the actual bandwidth jitter value of the user in the area is smaller than a preset threshold value or not;
a determining module, configured to determine a cause of node bandwidth jitter according to a detection result, including:
if the detection result is that the actual bandwidth jitter value of the user in the region is larger than the preset threshold value, determining that the reason of node bandwidth jitter is the jitter of the domain name;
and if the detection result is that the actual bandwidth jitter value of the user in the area is smaller than the preset threshold value, determining the reason of node bandwidth jitter according to single-area jitter or multi-area jitter.
7. The apparatus for detecting bandwidth jitter of claim 6, wherein the detecting means further comprises:
a domain name information acquisition module, configured to acquire domain name information in the node bandwidth resource coverage information;
the domain name bandwidth inquiry module is used for inquiring the domain name bandwidth use condition corresponding to the domain name information;
the jitter domain name determining module is used for determining a domain name with bandwidth jitter;
and the actual bandwidth of the users in the region is the bandwidth generated by the users in the region accessing the domain name with the bandwidth jitter.
8. The apparatus for detecting bandwidth jitter according to claim 7, wherein when the actual bandwidth jitter value of the user in the area is smaller than a preset threshold, the determining module detects whether the bandwidth jitter is single-area jitter or multi-area jitter comprises:
when the area is an area, determining the area to be single-area jitter;
when the area is a plurality of areas, the jitter condition of the domain name bandwidth is tested one by one when the bandwidth resources of the independent nodes in any area of the plurality of areas are tested one by one; if the test of more than two of the multiple areas results in the bandwidth jitter of the domain name, determining the domain name to be multi-area jitter, otherwise, determining the domain name to be single-area jitter.
9. The apparatus for detecting bandwidth jitter according to claim 8, wherein when the determination result is single-zone jitter, the query bandwidth collection center obtains bandwidth of a client machine in the zone, and determines that the cause of node bandwidth jitter is non-uniform in local DNS resolution polling or non-polling in local DNS resolution according to the bandwidth usage of the client machine.
10. The apparatus for detecting bandwidth jitter according to claim 8, wherein when the determination result is multi-zone jitter, it is determined whether the reason for the node bandwidth jitter is due to a zone scheduling error or a cache bank inconsistency according to whether the zones causing the domain bandwidth jitter are the same province.
11. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed, implements the steps of the method according to any one of claims 1-5.
12. A computer arrangement comprising a processor, a memory and a computer program stored on the memory, characterized in that the steps of the method according to any of claims 1-5 are implemented when the computer program is executed by the processor.
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