CN101977205A - Fragment completing method and system - Google Patents

Fragment completing method and system Download PDF

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Publication number
CN101977205A
CN101977205A CN2010102548309A CN201010254830A CN101977205A CN 101977205 A CN101977205 A CN 101977205A CN 2010102548309 A CN2010102548309 A CN 2010102548309A CN 201010254830 A CN201010254830 A CN 201010254830A CN 101977205 A CN101977205 A CN 101977205A
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China
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burst
node
cdn node
cdn
complete
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CN2010102548309A
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Chinese (zh)
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陈伟
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ZTE Corp
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ZTE Corp
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Abstract

The invention relates to the technical field of network television communication and provides a fragment completing method which comprises the following steps of: sending a fragment completing request to a node manager by a first CDN node with failed fragment transcription to obtain a complete fragment; feeding information of a second CDN node storing the complete fragment back to the first CDN node by the node manager according to the fragment completing request; and downloading the completing fragment by the first CDN node according to the information fed back by the node manager. The invention also provides a fragment completing system. The fragment completing method or system ensures the integrality of a program, and reduces the influence caused by failed transcription of a CDN node channel.

Description

Burst complementing method and system
Technical field
The present invention relates to the Web TV communication technical field, relate in particular to burst complementing method and system in the Web TV.
Background technology
Web TV is called IPTV (Internet Protocol Television again, IPTV), be meant by the IP bearer network provide to the user TV programme that can support interaction capabilities live, program request and time shifting broadcasting, review professional equipment general name such as broadcast.
In the IPTV framework, (Content Delivery Network, CDN) aspect the service quality guarantee in the IPTV system and aspect such as the stability of a system plays an important role content distributing network.Inner each essential functional entities of CDN is mainly used in the function that realizes that content is located, dispatched, records, stores.
Present review, recoding service can carry out simultaneously at a plurality of CDN nodes.If the failure of certain CDN node fragment recording, content will thoroughly be lost on this node, and relevant time shift or review business and can only be redirected to superior node causes the service pressure of superior node to increase suddenly.But because factors such as network, system can not ensure fully that again each CDN node is not unusual to recording of channel.Therefore, how reducing the influence that the failure of CDN node channel recording is caused, is the problem of needing solution at present badly.
Summary of the invention
Main purpose of the present invention is to provide a kind of burst complementing method and system, completion burst when being intended to the fragment recording failure, thus reduce the influence that the failure of CDN node channel recording is caused.
The invention provides a kind of burst complementing method, may further comprise the steps:
A CDN node of recording the burst failure sends burst completion request to obtain complete burst to node manager;
Node manager will have feedback information to a CDN node of the 2nd CDN node of complete burst according to request;
The one CDN node is downloaded complete burst according to the node manager feedack.
Preferably, a described CDN node sends burst completion request to node manager and comprises in the step of obtaining complete burst recording burst when failure:
Search fragment recording information, obtain the whole network unique identification of the burst of recording failure;
The whole network unique identification that comprises the burst of recording failure in burst completion request is sent to node manager.
Preferably, described node manager will have according to request in the step of feedback information to a CDN node of CDN node of complete burst and comprise:
Search the 2nd CDN node that has complete burst according to the whole network unique identification;
Complete burst download address in the 2nd CDN node is sent to a CDN node.
Preferably, described the 2nd CDN node is a plurality of; Described node manager will have according to request in the step of feedback information to a CDN node of CDN node of complete burst and comprise:
According to the present load situation of each the 2nd CDN node that has complete burst, balanced burst download address to the CDN node that distributes.
Preferably, downloading the step of complete burst according to the node manager feedack after, execution the one CDN node comprises:
The result reports to node manager with the burst completion.
The invention provides a kind of burst completion system, comprise a CDN node, the 2nd CDN node and node manager, wherein,
A described CDN node is used for sending burst completion request to obtain complete burst to node manager when recording the burst failure;
Described node manager is used for will having according to request feedback information to a CDN node of the 2nd CDN node of complete burst;
A described CDN node also is used for downloading complete burst according to the node manager feedack.
Preferably, a described CDN node comprises:
Identifier acquisition module is used to search fragment recording information, obtains the whole network unique identification of the burst of recording failure;
The completion request sending module, the whole network unique identification that is used for comprising in burst completion request the burst of recording failure is sent to node manager.
Preferably, described node manager comprises:
The download message acquisition module is used for searching the 2nd CDN node that has complete burst according to the whole network unique identification;
Information transmission modular is used for the complete burst download address of the 2nd CDN node is sent to a CDN node.
Preferably, described node manager also comprises:
The balanced distribution module of download message is used for the present load situation according to each the 2nd CDN node that has complete burst, balanced burst download address to the CDN node that distributes.
Preferably, described CDN node also comprises:
Completion is reporting module as a result, is used for burst completion result is reported to node manager.
Burst complementing method provided by the present invention or system, when recording the burst failure, send request to obtain complete burst to node manager, guaranteed the integrality of program, related service need not be redirected to superior node, thereby can not increase the service pressure of superior node, reduced the influence that the failure of CDN node channel recording is caused.
Description of drawings
Fig. 1 is a burst complementing method flow chart in an embodiment of the invention;
Fig. 2 is the sequential chart of burst complementing method in one embodiment of the present of invention;
Fig. 3 sends the method flow diagram of burst completion request to node manager in one embodiment of the present of invention;
Fig. 4 is the method flow diagram of node manager feed back full burst download message to a CDN node in one embodiment of the present of invention;
Fig. 5 distributes the flow chart of complete burst download message to a CDN node for manager in one embodiment of the present of invention;
Fig. 6 is the structural representation of burst completion system in an embodiment of the invention;
Fig. 7 is the structural representation of burst completion system in one embodiment of the present of invention.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In conjunction with Fig. 1 and Fig. 2, be burst complementing method flow process in an embodiment of the invention.This method flow may further comprise the steps:
Step S10, a CDN node of recording the burst failure sends burst completion request to obtain complete burst to node manager; Have a plurality of nodes among the CDN, channel content is wherein recorded into a burst and be stored in the memory with document form per half an hour.The CDN node is managed by node manager, for example node manager can obtain IP (the Internet Protocol of each CDN node, procotol) information such as address, FTP (File Transfer Protocol, file transfer protocol (FTP)) account, burst physical file name and between the CDN node, transmitting; And also can carry out file transfer between each CDN node by ftp file transfer protocol.In the embodiment of the invention, a CDN node is record burst failure in numerous CDN nodes one or more, and a CDN node sends burst completion request to obtain complete burst to node manager when recording the burst failure.
Step S20, node manager will have feedback information to the CDN joint of the 2nd CDN node of complete burst according to request; When node manager receives the burst completion request of a CDN node, the information such as the 2nd CDN IP addresses of nodes, FTP account, burst physical file name that has complete burst can be sent to a CDN node.
Step S30, a CDN node is downloaded complete burst according to the node manager feedack.For example, when a CDN node when receiving the download message that node manager feeds back, then download complete burst from the 2nd CDN node that has complete burst.
The CDN node triggers program completion flow process in the present embodiment when fragment recording is failed, obtain complete burst information to node manager, by node manager with complete burst information (the 2nd CDN IP addresses of nodes FTP account that for example has complete burst, burst physical file name etc.) feed back to the CDN node that this fragment recording is failed, obtain complete burst for it, thereby guaranteed the integrality of program, related service need not be redirected to superior node, thereby can not increase the service pressure of superior node, reduced the influence that the failure of CDN node channel recording is caused.
In one embodiment, after carrying out described step S30, comprise that also a CDN node reports to burst completion result the step of node manager.
As shown in Figure 3, can comprise among the above-mentioned steps S10:
Step S11 searches fragment recording information, obtains the whole network unique identification of the burst of recording failure; Channel content in each CDN node is recorded into a burst per half an hour and is stored in self memory by document form.In the present embodiment, per circulation half an hour of CDN node can be set obtain fragment recording information.Certainly, fragment recording also can adopt other cycle, is suitable for present embodiment equally.Have a plurality of bursts in the one CDN node, each burst is all had any different in the whole network unique identification of other bursts, thereby can be by obtaining the whole network unique identification of the burst of recording failure, thereby finds corresponding complete burst.
Step S12, the whole network unique identification that comprises the burst of recording failure in burst completion request is sent to node manager.For example a CDN node can comprise this whole network unique identification and be sent to node manager in burst completion request, searches each CDN node for node manager according to the whole network unique identification, thereby obtains corresponding complete burst.
Present embodiment obtains fragment recording information by being provided with by the record cycle circulation, has ensured the integrality of burst completion.
As shown in Figure 4, can comprise among the above-mentioned steps S20:
Step S21 searches the 2nd CDN node that has complete burst according to the whole network unique identification; For example, in the foregoing description, when node manager receives the whole network unique identification of the burst of recording failure that a CDN node sends,, search the 2nd CDN node that has with the corresponding complete burst of this whole network unique identification then to the CDN node in the traverses network.
Step S22 is sent to a CDN node with the complete burst download address in the 2nd CDN node.For example, information such as the 2nd CDN IP addresses of nodes, FTP account, burst physical file name are sent to a CDN node.
An above-mentioned CDN node and the 2nd CDN node all can be for a plurality of, in order not influence the operation of burst transmission and each the 2nd CDN node, in one embodiment, comprise present load situation among the above-mentioned steps S20, balanced step of distributing burst download address to a CDN node according to each the 2nd CDN node that has complete burst.Node manager is given different CDN nodes according to the present load situation of each the 2nd CDN node with the download message uniform distribution in the present embodiment, can share load, makes the CDN operation interference-free.
With reference to Fig. 5, there are an a plurality of CDN node and the 2nd CDN nodes of recording the burst failure in the network, a CDN node is respectively CDN node 2_1, CDN node 2_2 and CDN node 2_3, and the 2nd CDN node is respectively CDN node 1_1 and CDN node 1_2.In one embodiment, above-mentioned burst complementing method is specifically as follows: CDN node 2_1, CDN node 2_2 and CDN node 2_3 are to the complete burst information of node manager request; Node manager is according to the fragment recording situation, and the sheet source node CDN node 1_2 that has complete burst for CDN node 2_1, CDN node 2_2 branch partition distributes the source node CDN node 1_1 that has complete burst for CDN node 2_3.When distributing source node, node manager is according to the present load situation of the 2nd CDN node, and uniform distribution gives each CDN node different download address, to realize load sharing.After the one CDN node burst completion success, report the completion result to node manager.
The present invention also provides a kind of burst completion system, can be used for realizing said method.As shown in Figure 6, this system comprises a CDN node 10, the 2nd CDN node 20 and node manager 30, wherein,
A described CDN node 10 is used for sending burst completion request to obtain complete burst to node manager 30 when recording the burst failure; In the embodiment of the invention, a CDN node 10 is for recording the one or more of burst failure in numerous CDN nodes, and a CDN node 10 sends burst completion requests to obtain complete burst to node manager 30 when recording the burst failure.
Described node manager 30 is used for will having according to request feedback information to a CDN node 10 of the 2nd CDN node 20 of complete burst; When node manager 30 is received the burst completion request of a CDN node 10, the information such as IP address, FTP account, burst physical file name that has the 2nd CDN node 20 of complete burst can be sent to a CDN node 10
A described CDN node 10 also is used for downloading complete burst according to node manager 30 feedacks.For example, when a CDN node 10 when receiving the download message that node manager 30 fed back, then download complete burst from the 2nd CDN node 20 that has complete burst.
The burst completion flow process of burst completion system can not be described further at this with reference to figure 1 described embodiment in the embodiment of the present invention.
As shown in Figure 7, an above-mentioned CDN node 10 can comprise:
Identifier acquisition module 11 is used to search fragment recording information, obtains the whole network unique identification of the burst of recording failure; Channel content in each CDN node is recorded into a burst per half an hour and is stored in self memory by document form.In the present embodiment, identifier acquisition module 11 per circulations half an hour can be set obtain fragment recording information.Certainly, fragment recording also can adopt other cycle, is suitable for present embodiment equally.Have a plurality of bursts in the one CDN node 10, each burst is all had any different in the whole network unique identification of other bursts, thereby can obtain the whole network unique identification of the burst of recording failure by identifier acquisition module 11, thereby finds corresponding complete burst.
Completion request sending module 12, the whole network unique identification that is used for comprising in burst completion request the burst of recording failure is sent to node manager 30; Completion request sending module 12 can comprise this whole network unique identification and be sent to node manager 30 in burst completion request, search each CDN node for node manager root 30 according to the whole network unique identification, thereby obtains corresponding complete burst.
Completion is reporting module 13 as a result, is used for burst completion result is reported to node manager 30.After the burst completion, by completion as a result reporting module 13 report the completion result, a CDN node 10 can be used as the 2nd CDN node 20 that has complete burst and is present in the system.
In addition, a CDN node 10 also comprises memory module, document transmission module etc., and some are the known functional module of those skilled in the art, do not describe in detail one by one at this.
Above-mentioned node manager 30 can comprise:
Download message acquisition module 31 is used for searching the 2nd CDN node 20 that has complete burst according to the whole network unique identification; For example when node manager 30 receives the whole network unique identification of the burst of recording failure that a CDN node 10 sends,, search the 2nd CDN node 20 that has with the corresponding complete burst of this whole network unique identification then to the CDN node in the traverses network.
Information transmission modular 32 is used for the complete burst download address of the 2nd CDN node 20 is sent to a CDN node 10; For example, information such as the IP address of the 2nd CDN node 20, FTP account, burst physical file name are sent to a CDN node 10.
The balanced distribution module 33 of download message is used for the present load situation according to each the 2nd CDN node 20 that has complete burst, balanced burst download address to the CDN node 10 that distributes.An above-mentioned CDN node 10 and the 2nd CDN node 20 all can be for a plurality of, in order not influence the operation of burst transmission and each the 2nd CDN node 20, in one embodiment, the balanced distribution module 33 of download message can be according to the present load situation of each the 2nd CDN node 20 that has complete burst, balanced burst download address to the CDN node 10 that distributes.Node manager 30 is given different CDN nodes 10 according to the present load situation of each the 2nd CDN node 20 with the download message uniform distribution in the present embodiment, can share load, makes the CDN operation interference-free.
Below only be the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.

Claims (10)

1. a burst complementing method is characterized in that, may further comprise the steps:
A CDN node of recording the burst failure sends burst completion request to obtain complete burst to node manager;
Node manager will have feedback information to a CDN node of the 2nd CDN node of complete burst according to request;
The one CDN node is downloaded complete burst according to the node manager feedack.
2. burst complementing method as claimed in claim 1 is characterized in that, a described CDN node of recording burst failure sends burst completion request to node manager and comprises in the step of obtaining complete burst:
Search fragment recording information, obtain the whole network unique identification of the burst of recording failure;
The whole network unique identification that comprises the burst of recording failure in burst completion request is sent to node manager.
3. burst complementing method as claimed in claim 2 is characterized in that, described node manager will have according to request in the step of feedback information to a CDN node of CDN node of complete burst and comprise:
Search the 2nd CDN node that has complete burst according to the whole network unique identification;
Complete burst download address in the 2nd CDN node is sent to a CDN node.
4. as each described burst complementing method in the claim 1 to 3, it is characterized in that described the 2nd CDN node is a plurality of; Described node manager will have according to request in the step of feedback information to a CDN node of CDN node of complete burst and comprise:
According to the present load situation of each the 2nd CDN node that has complete burst, balanced burst download address to the CDN node that distributes.
5. burst complementing method as claimed in claim 4 is characterized in that, comprises a CDN node is downloaded the step of complete burst according to the node manager feedack after carrying out:
The one CDN node reports to node manager with burst completion result.
6. a burst completion system is characterized in that, comprises a CDN node, the 2nd CDN node and node manager, wherein,
A described CDN node is used for sending burst completion request to obtain complete burst to node manager when recording the burst failure;
Described node manager is used for will having according to request feedback information to a CDN node of the 2nd CDN node of complete burst;
A described CDN node also is used for downloading complete burst according to the node manager feedack.
7. burst completion as claimed in claim 6 system is characterized in that a described CDN node comprises:
Identifier acquisition module is used to search fragment recording information, obtains the whole network unique identification of the burst of recording failure;
The completion request sending module, the whole network unique identification that is used for comprising in burst completion request the burst of recording failure is sent to node manager.
8. burst completion as claimed in claim 7 system is characterized in that described node manager comprises:
The download message acquisition module is used for searching the 2nd CDN node that has complete burst according to the whole network unique identification;
Information transmission modular is used for the complete burst download address of the 2nd CDN node is sent to a CDN node.
9. burst completion as claimed in claim 8 system is characterized in that described node manager also comprises:
The balanced distribution module of download message is used for the present load situation according to each the 2nd CDN node that has complete burst, balanced burst download address to the CDN node that distributes.
10. as each described burst completion system in the claim 6 to 9, it is characterized in that described CDN node also comprises:
Completion is reporting module as a result, is used for burst completion result is reported to node manager.
CN2010102548309A 2010-08-16 2010-08-16 Fragment completing method and system Pending CN101977205A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102905164A (en) * 2012-10-11 2013-01-30 中兴通讯股份有限公司 TV on Demand (TVOD) management method and TVOD management system
WO2014032553A1 (en) * 2012-08-30 2014-03-06 腾讯科技(深圳)有限公司 Network resource management method and device, client and system
CN103974094A (en) * 2013-02-05 2014-08-06 中兴通讯股份有限公司 Program reservation method, device and system
CN109819266A (en) * 2017-11-20 2019-05-28 中兴通讯股份有限公司 A kind of center CDN network-building method and system
CN112383792A (en) * 2020-11-12 2021-02-19 咪咕视讯科技有限公司 Live content synchronous processing method, electronic equipment and storage medium

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Publication number Priority date Publication date Assignee Title
CN101420603A (en) * 2008-09-05 2009-04-29 中兴通讯股份有限公司 Method for implementing media distribution, positioning by segmented memory and stream media system thereof
WO2009070936A1 (en) * 2007-12-05 2009-06-11 Zte Corporation Content publishing and storing method for interactive personal television media delivery system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009070936A1 (en) * 2007-12-05 2009-06-11 Zte Corporation Content publishing and storing method for interactive personal television media delivery system
CN101420603A (en) * 2008-09-05 2009-04-29 中兴通讯股份有限公司 Method for implementing media distribution, positioning by segmented memory and stream media system thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014032553A1 (en) * 2012-08-30 2014-03-06 腾讯科技(深圳)有限公司 Network resource management method and device, client and system
CN103684809A (en) * 2012-08-30 2014-03-26 腾讯科技(深圳)有限公司 Network resource management method, device, client side and system
US9648135B2 (en) 2012-08-30 2017-05-09 Tencent Technology (Shenzhen) Company Limited Method, device, client end and system for network resource management
CN103684809B (en) * 2012-08-30 2018-02-27 腾讯科技(深圳)有限公司 A kind of method for managing network resource, device, client and system
CN102905164A (en) * 2012-10-11 2013-01-30 中兴通讯股份有限公司 TV on Demand (TVOD) management method and TVOD management system
CN102905164B (en) * 2012-10-11 2016-08-24 中兴通讯股份有限公司 Telecast demanding management method and system
CN103974094A (en) * 2013-02-05 2014-08-06 中兴通讯股份有限公司 Program reservation method, device and system
CN109819266A (en) * 2017-11-20 2019-05-28 中兴通讯股份有限公司 A kind of center CDN network-building method and system
CN112383792A (en) * 2020-11-12 2021-02-19 咪咕视讯科技有限公司 Live content synchronous processing method, electronic equipment and storage medium
CN112383792B (en) * 2020-11-12 2023-04-18 咪咕视讯科技有限公司 Live content synchronous processing method, electronic equipment and storage medium

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Application publication date: 20110216