CN1996886A - Cleaning method of redundant data of the IPTV system - Google Patents
Cleaning method of redundant data of the IPTV system Download PDFInfo
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- CN1996886A CN1996886A CN 200610165808 CN200610165808A CN1996886A CN 1996886 A CN1996886 A CN 1996886A CN 200610165808 CN200610165808 CN 200610165808 CN 200610165808 A CN200610165808 A CN 200610165808A CN 1996886 A CN1996886 A CN 1996886A
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Abstract
This invention discloses one IPTV system redundant data clearing method, which comprises the following steps: a, through WEB page sending the requires for cleaning redundant data to the redundant data points; b, the point index content distribution to check whether there is content of each record, if yes, then ending; if not, then copying the content to be deleted onto the record description position.
Description
Technical field
The present invention relates to redundant data in the IPTV content distributing network, particularly the sweep-out method of IPTV system redundancy data.
Background technology
The content distributing network of IPTV (CDN) is preserved the distributed intelligence of all the elements in CDN inside.These distribution of content information are that CDN carries out content scheduling, and the user asks to be redirected, the basis of functions such as disk space management.
After operation a period of time, may cause the redundancy of CDN distribution of content information: do not had content A on the nodes X, be distributed with content A on the nodes X but in the database of CDN, still there is record to be presented at owing to a variety of causes.
The direct result of this situation is exactly to use the inconvenience bring to the user: the user may be redirected to nodes X to the visit of content A, but nodes X is not preserved content A, causes the user can't view content A at last.
This situation also can cause disk usage space statistics mistake appears.Such as, nodes X also has some free disk spaces, but because the existence of redundant data, CDN predicate node X disk space uses up.Finally cause disk space to reveal (leakage here refers to, and free space is arranged on the disk, and still inaccurate this sheet space that causes owing to system data can not be used).
Distribution of content information is the basis that CDN provides other functions, must guarantee not have redundant data, and the IPTV system tends to produce redundant data after operation a period of time.The careless omission of scheme when the reason that produces comprises system upgrade, the unusual flow process when system moves, misoperation of system equipment or the like.After redundant data produces, can badly influence the service quality of IPTV system.The careless omission of scheme when the reason that redundant data produces comprises system upgrade, the unusual flow process when system moves, misoperation of system equipment or the like.After redundant data produces, can badly influence the service quality of IPTV system.
Do not have specially at the processing of redundant data flow process in the existing IPTV system schema.Redundant data is more and more in system, when having influence on the system service quality gradually, can only be by the mode of direct login system database, and manual the inspection and the deletion redundant data.Not only waste time and energy, and unreliable, the non-constant of operability can not well utilize the memory space of content distributing network.
Summary of the invention
For defective and the deficiency that overcomes prior art, the object of the present invention is to provide a kind of sweep-out method of IPTV system redundancy data, can rapid and reliable removing redundant data, strengthen the content distributing network operating factor of memory space.
In order to achieve the above object, the sweep-out method of a kind of IPTV system redundancy of the present invention data may further comprise the steps:
(1) node of removing redundant data to needs by the WEB page issues the redundant data request of removing;
(2) whether the content of every record of this querying node distribution of content table exists, if exist, then step finishes, if there is no, and then with this record deletion or the position that backups to this record description that copies this content.
As a further improvement on the present invention, described step (1) is specially:
(11A) the WEB page sends the removing request of redundant data to content distributing network;
(12A) content distributing network is transmitted to the Centroid that needs to remove redundant data with the removing request of this redundant data.
As a further improvement on the present invention, described step (2) is specially:
(21A) whether the content of this Centroid every record of query contents distribution table in streaming media server is present on the node magnetic battle array, if exist, then step finishes; If there is no, then this Centroid enters step (22A) after the non-existent information of content distributing network backspace file;
(22A) content distributing network is searched fringe node and whether is had this content, if exist, then enters step (23A); If there is no, then enter step (24A);
(23A) content distributing network copies the position of this record description that backups to Centroid of this content, and upgrades its database, and step finishes;
(24A) content distributing network sends this record of order deletion to Centroid, and upgrades its database.
As a further improvement on the present invention, also comprise after the described step (24A):
(25A) content distributing network content of announcement management system is with the program recording cancellation that issue on EPG.
As a further improvement on the present invention, described step (1) is specially:
(11B) the WEB page sends the removing request of redundant data to content distributing network;
(12B) content distributing network is transmitted to the fringe node that needs to remove redundant data with the removing request of this redundant data.
As a further improvement on the present invention, described step (2) is specially:
(21B) whether the content of this fringe node every record of query contents distribution table in streaming media server is present on the node magnetic battle array; If exist, then step finishes; If there is no, then enter step (22B);
(22B) behind this record of deletion fringe node,, carry out the renewal of synchrodata to content distributing network reported data news more.
After adopting above-mentioned method, whether exist by the content of searching every record of distribution of content table, the position that backups to this record description of when not existing, adopting this record deletion or copying this content, can rapid and reliable removing redundant data, guarantee the accuracy of IPTV content distributing network (CDN) distribution of content table, improve the reliability of CDN request redirection function, strengthen the CDN operating factor of memory space.
Description of drawings
Fig. 1 is the flow chart that CDN removes the Centroid redundant data among the present invention.
Fig. 2 is the flow chart that CDN removes the fringe node redundant data among the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
The node that the present invention removes redundant data by the WEB page to needs issues the redundant data request of removing; Whether the content of every record of this querying node distribution of content table exists, if exist, illustrates that then this record is not a redundant data, just can finish this step; If there is no, then with this record deletion or the position that backups to this record description that copies this content.
As shown in Figure 1, the flow process for the present invention removes the Centroid redundant data may further comprise the steps:
(101) the WEB interface sends the redundant data request of removing to the Manager of content distributing network;
(102) Manager of content distributing network will remove the Centroid (IPTV node A) that the redundant data request is transmitted to needs to remove redundant data;
(103) preserve the information of all the elements on this node in Centroid (the IPTV node A) internal memory, node A is by circulation, each bar content-data is initiated query requests to streaming media server, and whether streaming media server is inquired about this content file and is present on the node magnetic battle array, and return results; If streaming media server returns existence, then there is not follow-up processing, step finishes, and does not exist if streaming media server returns, and then enters step (104);
(104) Centroid (IPTV node A) does not exist to the Manager of content distributing network report content, initiates dispatch request;
(105) content distributing network Manager carries out content scheduling, has this content if fringe node (IPTV Node B) is gone up, and then issues the content copy command to Centroid (IPTV node A), requires it to get this content from fringe node (IPTV Node B);
(106) if all there is not this content on all fringe nodes, then issue delete command to Centroid (IPTV node A), require its deletion redundant data, and new database more, the program of notifying CMS (Content Management System) will issue on EPG is simultaneously cancelled.
Above-mentioned step (106), the program cancellation of after the deletion redundant data, notifying CMS (Content Management System) on EPG, to have issued, can guarantee that the user is convenient to use, content that the user watches can not find threaded file on this node problem can not occur.
Above-mentioned 6 steps comprised in the redundant data sweep-out method the institute in steps.In practical operation, these 6 steps are not can carry out all.When removing the redundant data of fringe node,, then directly delete the content information that fringe node is preserved if find that content does not exist, and notice CDN Manager.After Manager is notified, the related content record in the delete database, but need not to notify CMS.Because Centroid is preserved all contents, fringe node is only preserved partial content, so the deletion of certain content of fringe node can't influence the program request (user's request can be directed to other nodes) of user to this content.
Method step when handling fringe node and Centroid of removing redundant data is different, redundant data for fringe node is directly deleted, for the redundant data of Centroid the process of a content scheduling was arranged before deletion, a process of notifying CMS is arranged after deletion.The correctness of content scheduling in order to guarantee to remove the Centroid redundant data should be removed the redundant data of fringe node earlier during practical operation, remove the redundant data of Centroid at last.Because the content scheduling of CDN Manager action is based on distribution of content table in the database.
As shown in Figure 2, for removing the flow process of fringe node redundant data, concrete steps are:
(201) the WEB interface sends the redundant data request of removing to the Manager of content distributing network;
(202) Manager of content distributing network will remove the fringe node (IPTV Node B) that the redundant data request is transmitted to needs to remove redundant data;
(203) preserve the information of all the elements on this node in fringe node (IPTV Node B) internal memory, Node B is by circulation, each bar content-data is initiated query requests to streaming media server, and whether streaming media server is inquired about this content file and is present on the node magnetic battle array, and return results;
(204) if streaming media server returns existence, then there is not follow-up processing, step finishes; If the streaming media server backspace file does not exist, then fringe node (IPTV Node B) is directly deleted this content record of this node ground;
(205) notify CDN Manager more after the new database after the deletion, the synchrodata that CDN Manager carries out database is upgraded and is handled.
Whether the present invention exists by the content of searching every record of distribution of content table, the position that backups to this record description of when not existing, adopting this record deletion or copying this content, can rapid and reliable removing redundant data, guarantee the accuracy of IPTV content distributing network (CDN) distribution of content table, improve the reliability of CDN request redirection function, strengthen the CDN operating factor of memory space.
Claims (6)
1, a kind of sweep-out method of IPTV system redundancy data is characterized in that, may further comprise the steps:
(1) node of removing redundant data to needs by the WEB page issues the redundant data request of removing;
(2) whether the content of every record of this querying node distribution of content table exists, if exist, then step finishes, if there is no, and then with this record deletion or the position that backups to this record description that copies this content.
According to the sweep-out method of the described IPTV system redundancy of claim 1 data, it is characterized in that 2, described step (1) is specially:
(11A) the WEB page sends the removing request of redundant data to content distributing network;
(12A) content distributing network is transmitted to the Centroid that needs to remove redundant data with the removing request of this redundant data.
According to the sweep-out method of the described IPTV system redundancy of claim 2 data, it is characterized in that 3, described step (2) is specially:
(21A) whether the content of this Centroid every record of query contents distribution table in streaming media server is present on the node magnetic battle array, if exist, then step finishes; If there is no, then this Centroid enters step (22A) after the non-existent information of content distributing network backspace file;
(22A) content distributing network is searched fringe node and whether is had this content, if exist, then enters step (23A); If there is no, then enter step (24A);
(23A) content distributing network copies the position of this record description that backups to Centroid of this content, and upgrades its database, and step finishes;
(24A) content distributing network sends this record of order deletion to Centroid, and upgrades its database.
4, according to the sweep-out method of the described IPTV system redundancy of claim 3 data, it is characterized in that, also comprise after the described step (24A):
(25A) content distributing network content of announcement management system is with the program recording cancellation that issue on EPG.
According to the sweep-out method of the described IPTV system redundancy of claim 1 data, it is characterized in that 5, described step (1) is specially:
(11B) the WEB page sends the removing request of redundant data to content distributing network;
(12B) content distributing network is transmitted to the fringe node that needs to remove redundant data with the removing request of this redundant data.
According to the sweep-out method of the described IPTV system redundancy of claim 5 data, it is characterized in that 6, described step (2) is specially:
(21B) whether the content of this fringe node every record of query contents distribution table in streaming media server is present on the node magnetic battle array; If exist, then step finishes; If there is no, then enter step (22B);
(22B) behind this record of deletion fringe node,, carry out the renewal of synchrodata to content distributing network reported data news more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101658080A CN100473023C (en) | 2006-12-12 | 2006-12-12 | Cleaning method of redundant data of the IPTV system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101658080A CN100473023C (en) | 2006-12-12 | 2006-12-12 | Cleaning method of redundant data of the IPTV system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1996886A true CN1996886A (en) | 2007-07-11 |
| CN100473023C CN100473023C (en) | 2009-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101658080A Expired - Fee Related CN100473023C (en) | 2006-12-12 | 2006-12-12 | Cleaning method of redundant data of the IPTV system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123528B (en) * | 2007-07-23 | 2012-01-11 | 中兴通讯股份有限公司 | Stream media system and creation method for Internet network TV |
| CN101588468B (en) * | 2008-05-20 | 2013-08-07 | 华为技术有限公司 | Medium playing method, medium playing device and medium playing system based on P2P |
| CN103546792A (en) * | 2013-10-31 | 2014-01-29 | 乐视致新电子科技（天津）有限公司 | Method and device for cleaning cache of video playing device |
| CN103902394A (en) * | 2012-12-26 | 2014-07-02 | 腾讯科技（深圳）有限公司 | Method and device for cleaning redundant information in terminal |
| WO2021104100A1 (en) * | 2019-11-27 | 2021-06-03 | 北京金山云网络技术有限公司 | Url refreshing method, apparatus and device in cdn, and cdn node |
-
2006
- 2006-12-12 CN CNB2006101658080A patent/CN100473023C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123528B (en) * | 2007-07-23 | 2012-01-11 | 中兴通讯股份有限公司 | Stream media system and creation method for Internet network TV |
| CN101588468B (en) * | 2008-05-20 | 2013-08-07 | 华为技术有限公司 | Medium playing method, medium playing device and medium playing system based on P2P |
| US9497035B2 (en) | 2008-05-20 | 2016-11-15 | Huawei Technologies Co., Ltd. | Method, device, and system for playing media based on P2P |
| CN103902394A (en) * | 2012-12-26 | 2014-07-02 | 腾讯科技（深圳）有限公司 | Method and device for cleaning redundant information in terminal |
| US10311031B2 (en) | 2012-12-26 | 2019-06-04 | Tencent Technology (Shenzhen) Company Limited | Method, apparatus, and storage medium for removing redundant information from terminal |
| CN103546792A (en) * | 2013-10-31 | 2014-01-29 | 乐视致新电子科技（天津）有限公司 | Method and device for cleaning cache of video playing device |
| WO2021104100A1 (en) * | 2019-11-27 | 2021-06-03 | 北京金山云网络技术有限公司 | Url refreshing method, apparatus and device in cdn, and cdn node |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100473023C (en) | 2009-03-25 |
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