CN112689166A - Method and system for flexibly increasing and decreasing CDN hot content in real time - Google Patents
Method and system for flexibly increasing and decreasing CDN hot content in real time Download PDFInfo
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Abstract
The invention discloses a method and a system for flexibly increasing and decreasing CDN hot content in real time, which relate to the field of CDN content distribution, and the method comprises the steps of obtaining the number of real-time online access users of CDN nodes and counting the number of real-time playing users of each content in the CDN nodes; acquiring a preset number of contents as hot contents based on the number of real-time playing users of each content in the CDN node; increasing the number of copies of the hot content in the CDN node based on the real-time playing condition corresponding to the hot content; and periodically counting the playing total number of the hot content, and reducing the copy number of the hot content in the CDN node when the playing total number of the hot content in each period is decreased gradually. The invention can solve the problems of insufficient service capability and reduced service quality caused by short-time high-concurrency access of the hot content in CDN service in real time.
Description
Technical Field
The invention relates to the field of Content Delivery Network (CDN) Content Delivery, in particular to a method and a system for flexibly increasing and decreasing CDN hot Content in real time.
Background
With the popularization of an IPTV (Internet Protocol Television) network Television, more and more households have opened IPTV services; the number of the IPTV users is gradually increased, and simultaneously, a greater concurrent processing requirement is brought to CDN manufacturers, and the processing of hot content is more important. The update of hot spot contents such as a hot spot movie and a television play is usually online in a short time, and the hot spot contents cannot be rapidly distributed among all nodes of the CDN in real time, so that the problem of service quality degradation caused by insufficient service capability due to high concurrent access in a short time is caused.
The existing CDN system determines and processes the hot content with a certain hysteresis, for example, whether the hot content is determined by accessing a log or by counting access times with a long periodicity, or the hot content is determined by performing statistics on the access times with a long periodicity, which results in a large delay and hysteresis in determining the hot content.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for flexibly increasing and decreasing CDN hot content in real time, which can solve the problems of insufficient service capability and reduced service quality caused by short-time high concurrent access of the hot content in CDN service.
In order to achieve the above object, the present invention provides a method for flexibly increasing and decreasing CDN hot content in real time, including the following steps:
acquiring the number of real-time online access users of the CDN node, and counting the number of real-time playing users of each content in the CDN node;
acquiring a preset number of contents as hot contents based on the number of real-time playing users of each content in the CDN node;
increasing the number of copies of the hot content in the CDN node based on the real-time playing condition corresponding to the hot content;
and periodically counting the playing total number of the hot content, and reducing the copy number of the hot content in the CDN node when the playing total number of the hot content in each period is decreased gradually.
On the basis of the technical scheme, the method includes the steps of obtaining the number of real-time online access users of the CDN node, and counting the number of real-time playing users of each content in the CDN node, and specifically includes:
the CDN node acquires the number of the real-time online access users of the CDN node, and counts the number of the real-time playing users of each content in the CDN node based on the acquired number of the real-time online access users.
On the basis of the technical scheme, the method includes the steps of obtaining a preset number of contents as hot contents based on the number of real-time playing users of each content in the CDN node, and the method includes the following specific steps:
ranking the contents based on the number of real-time playing users of each content in the CDN node according to the principle that the number of the real-time playing users is from large to small;
acquiring the content with the ranking as the front preset number, and taking the acquired content as hot content;
based on the load of the CDN node and the real-time playing information of the hot content, the CDN node generates the reporting information of the hot content;
and the CDN node sends the generated report information to a CDN content view management unit.
On the basis of the technical scheme, the reported information comprises a hot content playing URL, the number of hot content real-time playing users and CDN node load.
On the basis of the above technical solution, the increasing the number of copies of the hot content in the CDN node based on the real-time playing condition corresponding to the hot content specifically includes:
the CDN content view management unit receives report information sent by a CDN node;
and increasing the number of copies of the hot content in the CDN node based on the CDN node load and the number of the users playing the hot content in real time in the reported information.
On the basis of the above technical solution, after the number of copies of the hotspot content in the CDN node is increased and there are multiple copies of the hotspot content, the method further includes: and distributing the copy corresponding to the hot content to the access user according to the load condition of the CDN node where the hot content copy is located.
On the basis of the above technical solution, the allocating a copy corresponding to the hot content to the access user according to the load condition of the CDN node where the hot content copy is located specifically includes:
and distributing the copy corresponding to the hot content to the access user according to the disk utilization rate, the network card flow utilization percentage, the online user utilization percentage, the CPU utilization percentage and the memory utilization percentage of the CDN node where the hot content copy is located.
The invention provides a system for flexibly increasing and decreasing CDN hot spot content in real time, which comprises:
the CDN node is used for acquiring the number of real-time online access users per se, counting the number of real-time playing users of each content, and acquiring a preset number of contents as hot contents based on the number of real-time playing users of each content of the CDN node;
and the CDN content view management unit is used for increasing the copy number of the hot content in the CDN node based on the real-time playing condition corresponding to the hot content, periodically counting the playing total number of the hot content, and reducing the copy number of the hot content in the CDN node when the playing total number of the hot content in each period is sequentially decreased.
On the basis of the technical scheme, the number of the real-time playing users of each content based on the CDN node obtains a preset number of contents as hot content, and the specific process is as follows:
ranking the contents based on the number of real-time playing users of each content in the CDN node according to the principle that the number of the real-time playing users is from large to small;
acquiring the content with the ranking as the front preset number, and taking the acquired content as hot content;
based on the load of the CDN node and the real-time playing information of the hot content, the CDN node generates the reporting information of the hot content;
and the CDN node sends the generated report information to a CDN content view management unit.
On the basis of the technical scheme, the reported information comprises a hot content playing URL, the number of hot content real-time playing users and CDN node load.
Compared with the prior art, the invention has the advantages that: the number of real-time online access users of the CDN node is used for counting the number of real-time playing users of each content in the CDN node, so that the obtained hot content information is more real-time and accurate, the number of copies can be increased and decreased flexibly, the problems of insufficient service capacity and reduced service quality caused by short-time high-concurrency access of hot content in CDN service can be solved in real time, the number of copies required by hot content can be calculated reasonably, and resources can be used flexibly and efficiently
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for flexibly increasing or decreasing CDN hot content in real time according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a system for flexibly increasing and decreasing CDN hot content in real time according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a method for flexibly increasing and decreasing CDN hot content in real time, which is characterized in that the number of real-time playing users of each content in a CDN node is counted through the number of real-time online access users of the CDN node, so that the obtained hot content information is more real-time and accurate, the number of copies is flexibly increased and decreased, resources are efficiently and flexibly used, and the problem of service quality reduction of a server is avoided. The embodiment of the invention correspondingly provides a system for flexibly increasing and decreasing the CDN hot spot content in real time.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a method for flexibly increasing and decreasing CDN hot content in real time provided in an embodiment of the present invention specifically includes the following steps:
s1: and acquiring the number of real-time online access users of the CDN node, and counting the number of real-time playing users of each content in the CDN node.
In the embodiment of the present invention, the number of real-time online access users of a CDN node is obtained, and the number of real-time playing users of each content in the CDN node is counted, specifically: the CDN node acquires the number of the real-time online access users of the CDN node, and counts the number of the real-time playing users of each content in the CDN node based on the acquired number of the real-time online access users.
S2: based on the number of real-time playing users of each content in the CDN node, a preset number of contents are obtained to serve as hot content.
In the embodiment of the present invention, based on the number of real-time playing users of each content in a CDN node, a preset number of contents are acquired as hot content, and the specific steps include:
s201: based on the number of real-time playing users of each content in the CDN node, ranking the content according to the principle that the number of the real-time playing users is from large to small, namely ranking the content according to the size of the number of the real-time playing users, wherein the content with the large number of the real-time playing users is arranged in front of the content with the small number of the real-time playing users.
S202: acquiring the content with the ranking as the front preset number, and taking the acquired content as hot content; for example, the top 10 content may be de-ranked as hot content.
S203: based on the load of the CDN node and the real-time playing information of the hot content, the CDN node generates the reporting information of the hot content; the reported information in the embodiment of the invention comprises a hot content playing URL, the number of hot content real-time playing users and CDN node load. For example, if a certain hot content is movie a, the reported information of movie a may be 1 million real-time playing users, a hot content playing URL1, and a CDN node load of 40%.
S204: and the CDN node sends the generated report information to a CDN content view management unit.
S3: and increasing the number of copies of the hot content in the CDN node based on the real-time playing condition corresponding to the hot content.
In the embodiment of the present invention, based on the real-time playing condition corresponding to the hot content, the number of copies of the hot content in the CDN node is increased, which specifically includes:
s301: the CDN content view management unit receives report information sent by a CDN node;
s302: and increasing the number of copies of the hot content in the CDN node based on the CDN node load and the number of the users playing the hot content in real time in the reported information.
For the number of the copies of the hot content in the CDN node, which is increased based on the CDN node load and the number of the users playing the hot content in real time in the reported information, the following example is given: assuming that the number of users playing the movie a in real time is 1 ten thousand in the reported information of the movie a, the load of the CDN node is 40%, and the maximum number of concurrencies that can be supported by a single copy of the movie a is 1000, then the load influence factor is 60% for 100% -40%, and the load influence factor is the remaining percentage of the resource usage of the CDN node, then the number of copies to be added is 6 for 10000/1000% for 60%, that is, 6 copies are added to the movie a on the CDN node.
S4: and periodically counting the playing total number of the hot content, and reducing the copy number of the hot content in the CDN node when the playing total number of the hot content in each period is decreased gradually.
Under normal conditions, the requirement on real-time performance for reducing the copy number is not high, a long period (the period size can be set according to the storage capacity, for example, the period is in cycles as a unit) can be set for the hot content of which multiple copies have been copied, when the set period is 1 cycle, the reduction ratio of the access number in a plurality of continuous investigation periods is counted, and the copy number is deleted and reduced according to the reduction percentage and the access number. Assuming that a certain hot content is accessed 10 ten thousand times in the first week, 8 ten thousand times in the second week and 7 ten thousand times in the third week, it is obvious that the popularity of the content is reduced, so that the number of copies can be reduced from 6 to 5 or 4 in the next week, and the number of copies deleted can be increased as the popularity of the subsequent content is reduced.
In the embodiment of the present invention, when the number of copies of the hotspot content in the CDN node is increased and there are multiple copies of the hotspot content, the method further includes: and distributing the copy corresponding to the hot content to the access user according to the load condition of the CDN node where the hot content copy is located.
According to the load condition of the CDN node where the hot content copy is located, a copy corresponding to the hot content is distributed to an access user, and the method specifically comprises the following steps: and distributing the copy corresponding to the hot content to the access user according to the disk utilization rate, the network card flow utilization percentage, the online user utilization percentage, the CPU utilization percentage and the memory utilization percentage of the CDN node where the hot content copy is located.
The CDN scheduling unit keeps real-time synchronization of the content view and the load condition with a CDN content view unit, and after hot content accessed by a user has multiple copies at a CDN node, the CDN scheduling unit needs to comprehensively calculate balanced scheduling in the multiple copies according to the content view and multiple load factors of the node where the hot content copy is located.
In order to ensure balanced scheduling of multiple copies, all load factors of each copy need to be considered, including but not limited to disk usage, network card traffic usage, online user usage, CPU usage, and memory usage of CDN nodes. And setting weight values for the above factors (the weight can be adjusted according to actual operation conditions, for example, when the network card flow is enough, the network card weight can be reduced, and when the disk influence is large, a higher weight can be set), and comprehensively considering each copy load to select the optimal copy scheduling. Assuming that the above loads are considered and the weights are set to 70%, 5%, 10%, respectively, the preferred copy is the one with the largest remaining service capacity through calculation (100-disk usage rate 70% -network card traffic usage percentage 5% -online user usage percentage 5% -CPU usage percentage 10% -memory usage percentage 10%).
The method for flexibly increasing and decreasing the CDN hot content in real time can effectively process the hot content of the CDN node in real time, can flexibly increase and decrease copies of the hot content from cold to hot and from heat to cold, can quickly respond to the hot content, and reasonably uses resources such as storage, a memory, a CPU and the like. The data collected in the invention is the number of real-time online access users, and compared with the traditional periodic statistical access records, the method can realize more real-time and more accurate access records. Compared with other methods, the method can use resources more reasonably according to the hot spot condition, and can flexibly use physical resources while quickly processing the hot spot content. The method can be used for considering various load factors, selectively aiming at the node side emphasis point balanced scheduling, and calculating the optimal path at one time.
According to the method for flexibly increasing and decreasing the CDN hot content in real time, the number of real-time playing users of each content in the CDN node is counted through the number of real-time online access users of the CDN node, so that the obtained hot content information is more real-time and accurate, the number of copies is flexibly increased and decreased, the problems of insufficient service capacity and decreased service quality caused by short-time high concurrent access of the hot content in CDN service can be solved in real time, the number of the needed copies can be reasonably calculated for the hot content, and resources are efficiently and flexibly used.
Referring to fig. 2, a system for CDN hotspot content real-time flexible increase and decrease provided in an embodiment of the present invention includes a CDN node and a CDN content view management unit.
The CDN node is used for acquiring the number of real-time online access users per se, counting the number of real-time playing users of each content, and acquiring the preset number of contents as hot content based on the number of real-time playing users of each content of the CDN node; the CDN content view management unit is used for increasing the number of copies of the hot content in the CDN node based on the real-time playing condition corresponding to the hot content, periodically counting the playing total number of the hot content, and reducing the number of copies of the hot content in the CDN node when the playing total number of the hot content in each period is sequentially decreased.
In the embodiment of the present invention, based on the number of real-time playing users of each content of a CDN node, a preset number of contents are acquired as hot content, and the specific process is as follows:
ranking the contents based on the number of real-time playing users of each content in the CDN node according to the principle that the number of the real-time playing users is from large to small;
acquiring the content with the ranking as the front preset number, and taking the acquired content as hot content;
based on the load of the CDN node and the real-time playing information of the hot content, the CDN node generates the reporting information of the hot content; the reported information comprises a hot content playing URL, the number of hot content real-time playing users and CDN node load.
And the CDN node sends the generated report information to a CDN content view management unit.
Further, referring to fig. 2, the system for flexibly increasing and decreasing CDN hot content in real time in the embodiment of the present invention further includes a CDN scheduling unit and a client. The client is used for sending a request to the CDN scheduling unit, the CDN scheduling unit is used for carrying out balanced scheduling on multiple copies to CDN nodes according to the copy load condition, the CDN nodes comprise multiple copies to achieve flexible increase and decrease of the copies, the CDN nodes are also used for reporting hot content to the CDN content view management unit, and the CDN content view management unit is used for carrying out content view synchronization with the CDN scheduling unit and informing the CDN nodes of increase and decrease of the copies.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) 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.
Claims (10)
1. A method for flexibly increasing and decreasing CDN hot spot content in real time is characterized by comprising the following steps:
acquiring the number of real-time online access users of the CDN node, and counting the number of real-time playing users of each content in the CDN node;
acquiring a preset number of contents as hot contents based on the number of real-time playing users of each content in the CDN node;
increasing the number of copies of the hot content in the CDN node based on the real-time playing condition corresponding to the hot content;
and periodically counting the playing total number of the hot content, and reducing the copy number of the hot content in the CDN node when the playing total number of the hot content in each period is decreased gradually.
2. The method for the real-time flexible increase and decrease of the CDN hot spot content according to claim 1, wherein the obtaining of the number of real-time online access users of the CDN node and the counting of the number of real-time playing users of each content in the CDN node are specifically:
the CDN node acquires the number of the real-time online access users of the CDN node, and counts the number of the real-time playing users of each content in the CDN node based on the acquired number of the real-time online access users.
3. The method for flexibly increasing or decreasing the CDN hot content in real time according to claim 1, wherein the method for acquiring a preset number of contents as the hot content based on a number of real-time playing users of each content in the CDN node includes:
ranking the contents based on the number of real-time playing users of each content in the CDN node according to the principle that the number of the real-time playing users is from large to small;
acquiring the content with the ranking as the front preset number, and taking the acquired content as hot content;
based on the load of the CDN node and the real-time playing information of the hot content, the CDN node generates the reporting information of the hot content;
and the CDN node sends the generated report information to a CDN content view management unit.
4. The method of claim 3, wherein the method for flexibly increasing or decreasing CDN hot spot content in real time comprises: the reported information comprises a hot content playing URL, the number of hot content real-time playing users and CDN node load.
5. The method for flexibly increasing or decreasing the CDN hot content in real time according to claim 4, wherein the increasing the number of copies of the hot content in the CDN node based on a real-time playing situation corresponding to the hot content specifically includes:
the CDN content view management unit receives report information sent by a CDN node;
and increasing the number of copies of the hot content in the CDN node based on the CDN node load and the number of the users playing the hot content in real time in the reported information.
6. The method as claimed in claim 1, wherein when the number of copies of the hot content in the CDN node is increased and there are multiple copies of the hot content, the method further includes: and distributing the copy corresponding to the hot content to the access user according to the load condition of the CDN node where the hot content copy is located.
7. The method for CDN hot content real-time flexible increase and decrease as recited in claim 6, wherein the allocating, according to a load condition of a CDN node where the hot content copy is located, a copy corresponding to the hot content to an access user specifically is:
and distributing the copy corresponding to the hot content to the access user according to the disk utilization rate, the network card flow utilization percentage, the online user utilization percentage, the CPU utilization percentage and the memory utilization percentage of the CDN node where the hot content copy is located.
8. A system for CDN hot spot content real-time flexible increase and decrease is characterized by comprising:
the CDN node is used for acquiring the number of real-time online access users per se, counting the number of real-time playing users of each content, and acquiring a preset number of contents as hot contents based on the number of real-time playing users of each content of the CDN node;
and the CDN content view management unit is used for increasing the copy number of the hot content in the CDN node based on the real-time playing condition corresponding to the hot content, periodically counting the playing total number of the hot content, and reducing the copy number of the hot content in the CDN node when the playing total number of the hot content in each period is sequentially decreased.
9. The system for flexibly increasing or decreasing the CDN hot content in real time according to claim 8, wherein the system is configured to obtain a preset number of contents as the hot content based on a real-time number of users playing each content of the CDN node, and includes:
ranking the contents based on the number of real-time playing users of each content in the CDN node according to the principle that the number of the real-time playing users is from large to small;
acquiring the content with the ranking as the front preset number, and taking the acquired content as hot content;
based on the load of the CDN node and the real-time playing information of the hot content, the CDN node generates the reporting information of the hot content;
and the CDN node sends the generated report information to a CDN content view management unit.
10. The system for CDN hot spot content real-time flexible addition and subtraction as recited in claim 9, wherein: the reported information comprises a hot content playing URL, the number of hot content real-time playing users and CDN node load.
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Application publication date: 20210420 |