CN108810565A - Storage, the method, apparatus of scheduled media resource and distributed memory system - Google Patents

Abstract

A method, device, and distributed storage system for storing and scheduling media resources, wherein a media resource is written to a server to obtain a media resource fragment file, wherein the media resource fragment file is the smallest playback unit that a media resource can play; the The media resource writing server stores the acquired media resource fragment files in the storage server in units of media resource fragment files, wherein each media resource fragment file stored in the storage server constitutes a media resource. The first server in the distributed storage system obtains the media resource fragment file playback request sent by the user terminal; the first server obtains the media resource fragment file from the storage server of the distributed storage system in units of The media resource fragment file is requested to play the requested media resource fragment file, and the obtained media resource fragment file is fed back to the user terminal, so as to improve the overall performance of the distributed storage system.

Description

Method and device for storing and scheduling media resources, and distributed storage system

technical field

The present application relates to the field of video technology, and in particular to a method, device and distributed storage system for storing and scheduling media resources.

Background technique

With the development of video technology, higher requirements are put forward for all links in the media resource transmission process, such as higher and higher performance requirements for media resource storage and playback.

Currently, the main storage methods for storing media resources include local storage and distributed storage. Among them, when using the local storage method to store media resources, the local storage system will select the streaming media server for storing media resources according to the principles of load balancing and space balancing, and record the storage relationship of media resources. The corresponding relationship between the media resource and the address of the storage server is recorded. For example, the recorded storage relationship of the media resource may be that the media resource 1 is stored in the storage server 1 and the media resource 2 is stored in the storage server 2 . When the user terminal requests to play a media resource, it sends a media resource play request. The media resource play request is first sent to the scheduling server. The scheduling server can obtain the storage relationship of the media resource stored in the local storage system. The scheduling server stores the relationship according to the media resource. The media resource playback request sent by the user terminal is redirected to the streaming media server storing the media resource, and then the specific streaming media server sends the media resource to the user terminal according to the protocol. In the local storage mode, when the user terminal uses hypertext transfer protocol (Hyper Text Transfer Protocol, HTTP) dynamic adaptive streaming media (Dynamic Adaptive Streaming over HTTP, DASH), HTTP streaming media live streaming (HTTP LiveStreaming, HLS) and other adaptive In Adaptive Bit Rate (ABR) protocol, in the segment index file returned to the user by the streaming media server storing media resources, the domain name or Internet protocol ( Internet Protocol (IP) addresses are all streaming media servers that store media resources, ensuring that the media resource playback requests initiated by subsequent user terminals for each segment will be routed to the streaming media servers that store media resources, so that media resource playback requests It can only be dispatched to streaming media servers that store media resources. When the access popularity of a certain media resource suddenly becomes very high, the streaming media server storing the media resource will become a bottleneck.

When the distributed storage method is used for media resource storage, the media resources in the distributed storage system are written to the server not to store the media resources on one or more specific streaming media servers, but to store the media resources according to the size of the storage stripe Media resources are split into multiple Stripes, and multiple copies or error code mechanisms are used to store media resources on different storage servers. The metadata server in the distributed storage system records the storage path information of the media resource on the distributed storage system. When a user terminal requests to play a media resource, the streaming media server initiates a media resource play request to the distributed storage system. The distributed storage system will assign a storage server to respond to the media resource playback request sent by the streaming media server. The storage server assigned by the distributed storage system will query the storage path information of the media resources saved by the metadata server, and pass the intranet of the distributed storage system The Internet Protocol (IP) network obtains the media resources requested by the user terminal but not stored on the storage server from other storage servers in the distributed storage system, and sends the user's media resources through the external IP network of the distributed storage system. All content of the media resource requested by the terminal is returned to the streaming media server.

The characteristics of distributed storage's unified access and data distributed storage (Stripe level) bring it the advantages of good versatility, simple use, and system load balance. However, due to the need to move media between storage servers in the distributed storage system Resources require high network bandwidth, which degrades the overall performance of the distributed storage system.

Contents of the invention

Embodiments of the present application provide a method and device for storing and scheduling media resources, and a distributed storage system, so as to improve the overall performance of the distributed storage system.

In the first aspect, a method for storing media resources is provided. The media resource writing server stores the media resources to the storage server in the unit of the smallest playback unit that the media resources can play, so that the user terminal can request to obtain the distributed storage system. When saving the minimum playback unit of a certain media resource, the distributed storage system can directly schedule the minimum playback unit from the storage server that stores the minimum playback unit and feed it back to the user terminal without the need Moving media resources can reduce the requirements for the internal IP network bandwidth of the distributed storage system and help improve the overall performance of the distributed storage system.

Among them, for the same media resource, the playback code stream is inconsistent, and the minimum playback unit is also inconsistent. The smallest playback unit that can be played by a media resource can be understood as a media resource segment file that divides the media resource in time, and the media resource segment file has different sizes according to different service playback protocols of the media resource.

In a possible implementation manner, the media resource writing server obtains the media resource fragment file, and stores the obtained media resource fragment file to the storage server in units of the media resource fragment file, and the media stored on each storage server Resource slice files make up media resources.

In yet another possible implementation manner, the media resource usually includes a plurality of media resource fragment files, and Y consecutive media resource fragment files can be used as a fragment file storage unit, and the fragment file storage unit can be used as The unit stores the media resources in the storage server.

Wherein, when the media resource writing server stores each fragmented file storage unit in the storage server, different redundancy processing may be performed according to different reliability policies. The redundancy processing may include performing multi-copy redundancy, error code redundancy and no redundancy processing on the segment file storage unit including Y media resource segment files.

In yet another possible implementation manner, the media resource writing server may save the distribution information of the media resource fragment file to the metadata server of the distributed storage system after storing the media resource fragment file in the storage server, wherein, the The distribution information of the media resource fragment file is used to indicate the corresponding relationship between the media resource fragment file and the storage server storing the media resource fragment file, so that the subsequent user terminal needs to call the media resource from the distributed storage system When segmenting files, the scheduling server can query the media resource distribution information stored in the metadata server to generate a segment URL for the user terminal to access the distributed storage system, and instruct the user terminal to obtain the address of the media resource segment file through the segment URL.

Wherein, if the media resource writing server performs different redundant processing on the segmented file storage units including Y media resource segmented files, it is necessary to save the distribution information of the redundantly processed segmented file storage units to the metadata server. Wherein, if multi-copy redundancy processing is performed on the media resource fragment file, it is necessary to save the multi-copy distribution information of the fragment file storage unit to the metadata server. If error code redundancy processing is performed on media resource fragment files, the distribution information of M+N fragment file storage units needs to be saved to the metadata server.

In the second aspect, a method for scheduling media resources is provided. In this method, a user terminal sends a media resource play request to a first server, and the first server uses a media resource fragment file as a unit to obtain a media resource from the distributed storage system. The storage server obtains the media resource fragment file requested by the media resource fragment file play request, and feeds back the acquired media resource fragment file to the user terminal.

In a possible implementation manner, the first server is a storage server, and the media resource segment file playback request sent by the user terminal acquired by the storage server is sent by the user terminal according to the segment URL. The storage server corresponding to the storage server address included in the fragment URL is a storage server that responds to the media resource fragment file play request sent by the user terminal, and is also the media resource fragment requested for storing the media resource fragment file play request. Storage server for slice files.

Wherein, the segment URL is generated in the following manner: the scheduling server inquires the distribution information of the media resource segment file of the media resource requested by the media resource playback request stored in the metadata server, and generates according to the distribution information of the media resource segment file Secondary index file, each media resource segment file of the media resource requested by the media resource play request in the generated secondary index file has a segment URL corresponding to it, and the segment URL includes distributed storage The address of the storage server that stores the corresponding media resource segment files in the system.

After the user terminal obtains the segment URL sent by the scheduling server, it can send a media resource segment file play request to the storage server corresponding to the storage server address indicated by the segment URL according to the segment URL of each media resource segment file, and the storage server After obtaining the playback request of the media resource fragment file, the corresponding media resource fragment file can be directly read locally and fed back to the user terminal, without using the internal network to obtain media resources from other storage servers, and there is no need to feed back to the streamer Other third-party servers such as media servers can improve the performance of the distributed storage system.

Wherein, if the distributed storage system adopts a redundant processing method to store media resource fragment files, different processing methods may be adopted according to different redundant processing strategies when determining the address of the storage server included in the fragment URL. If the multi-copy redundancy processing method is used, it is necessary to select an appropriate storage server for different media resource fragment files according to the load balancing principle to provide the media resource fragment files, and include the selected storage server when generating the corresponding fragment URL the address of. If the error code redundancy processing method is adopted, the storage server is selected to provide the media resource fragment file, and the storage server address included when generating the fragment URL is the address of the storage server providing the media resource fragment file. If the non-redundant processing method is adopted, the storage server is selected to provide the media resource fragment file, and the storage server address included in generating the fragment URL is the address of the storage server providing the media resource fragment file.

Wherein, when the first server obtains the media resource fragment file from the storage server in units of media resource fragment files, if the storage server fails or a hard disk in the storage server fails, the redundant processing method can be used to provide Reliability recovers lost content.

In another possible implementation manner, the first server may be a streaming media server. The user terminal sends a media resource play request, and the scheduling server obtains the media resource play request sent by the user terminal, and dispatches the media resource play request to the streaming media server, and the streaming media server queries the distribution information of the media resource in the metadata server And generate the segment URL of each media resource segment file, the address in the segment URL is the streaming media server, after the user terminal sends the media resource segment playback request, the media resource segment playback request is routed to the streaming media server, The streaming media server inquires from the metadata server the storage server where the media resource segment file requested by the media resource segment play request is located, obtains the media resource segment file from the storage server and feeds it back to the user terminal. Using the streaming media server to realize the scheduling of media resource fragment files in the storage server can avoid using the internal network to obtain media resources from other storage servers to improve the performance of the distributed storage system to a certain extent, and in the fragment URL generated by the streaming media server It does not include the address of the storage server that stores the fragmented files of each media resource, so it can reduce the exposure of the storage server address to the user terminal, improve security to a certain extent, and is applicable to some scenarios with high security and isolation requirements.

In the third aspect, a device for storing media resources is provided. The device for storing media resources has the function of writing the media resources into the server in the design of the above method. The function can be realized by hardware, or by executing corresponding software on the hardware. . The hardware or software includes one or more modules corresponding to the above functions. The modules may be software and/or hardware.

In a possible design, the device for storing media resources includes an acquisition unit and a processing unit, and the functions of the acquisition unit and the processing unit may correspond to the steps of each method, which will not be repeated here.

In a fourth aspect, a device for scheduling media resources is provided. The device for scheduling media resources has the function of realizing the first server in the above method design, and the function can be realized by hardware or by executing corresponding software on the hardware. The hardware or software includes one or more modules corresponding to the above functions. The modules may be software and/or hardware.

In a possible design, the device for storing media resources includes an acquisition unit and a sending unit, and the functions of the acquisition unit and the sending unit may correspond to the steps of each method, and details will not be described here.

According to a fifth aspect, a media resource writing server is provided, and the media resource writing server includes an input and output interface, a processor, and a memory. Wherein, the input and output interface, the processor and the memory may be connected through a bus system. The memory is used to store programs, and the processor is used to execute the programs in the memory, so as to execute the method performed by the media resource writing server in the first aspect or any possible design of the first aspect.

In a sixth aspect, the present application provides a first server, where the first server includes: an input interface, an output interface, a processor, and a memory. Wherein, the input interface, the output interface, the processor and the memory may be connected through a bus system. The memory is used to store programs, and the processor is used to execute the programs in the memory, so as to execute the method performed by the first server in the second aspect or any possible design of the second aspect.

Wherein, the first server may be a storage server in the distributed storage system, or may be a streaming media server independent of the storage server in the distributed storage system.

In the seventh aspect, the embodiment of the present application provides a distributed storage system, the distributed storage system includes the media resource writing server described in the fifth aspect and the first server described in the sixth aspect, and may also include metadata One or more of server and scheduling server.

In an eighth aspect, the present application provides an embodiment of a computer-readable storage medium or a computer program product for storing a computer program, and the computer program is used to implement the first aspect, any possible design of the first aspect, and any possible design of the second aspect. Or a method in any possible design of the second aspect.

In the method, device, and distributed storage system for storing and scheduling media resources provided by the embodiments of the present application, the media resource writing server stores the media resources in the storage server in units of the smallest playing unit that the media resources can play, so that the user terminal When requesting to obtain the minimum playback unit of a certain media resource stored in the distributed storage system, the distributed storage system can directly schedule the minimum playback unit from the storage server storing the minimum playback unit and feed it back to the user terminal without distributing Moving media resources between storage servers in the distributed storage system can reduce the requirements for the internal IP network bandwidth of the distributed storage system and help improve the overall performance of the distributed storage system.

Description of drawings

FIG. 1 is a schematic diagram of a distributed storage system architecture applicable to the method for storing and playing media resources provided by the embodiment of the present application;

Fig. 2 is the implementation flowchart of the method for storing media resources provided by the embodiment of the present application;

Fig. 3 is a schematic diagram of the implementation process of the media resource writing server provided by the embodiment of the present application storing the media resource to the storage server in units of fragmented file storage units;

FIG. 4 is another implementation flowchart of storing media resources provided by the embodiment of the present application;

FIG. 5 is a schematic diagram of an implementation process of directly responding to a media resource fragment playback request sent by a user terminal through a storage server provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of the implementation process of scheduling media resource fragment files on the storage server through the streaming media server provided by the embodiment of the present application;

Fig. 7 is a kind of implementation flowchart of scheduling the playback media resource segment file requested by the user terminal provided by the embodiment of the present application;

FIG. 8 is a schematic diagram of the process of restoring media resource fragment files in the storage server failure scenario provided by the embodiment of the present application;

FIG. 9 is a schematic structural diagram of a device for storing media resources provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a media resource writing server provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of an apparatus for scheduling media resources provided by an embodiment of the present application;

FIG. 12 is a schematic structural diagram of the first server provided by the embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The method for storing and playing media resources provided by the embodiment of the present application can be applied to the distributed storage system shown in Figure 1. Referring to Figure 1, the distributed storage system mainly includes a media resource writing server, a storage server, and metadata server. Wherein, the media resource writing server is mainly used to obtain media resources to be stored in the distributed storage system, and store the obtained media resources in the storage server through the streaming media server or a third-party tool. The storage server is mainly used to store media resources. The distributed storage system may include multiple storage servers, and the multiple storage servers interact through the internal IP network of the distributed storage system. The metadata server is used to save the media resource distribution information, and the media resource distribution information is used to represent the saving path (specifically the storage server to which the media resource is saved) information in the distributed storage system. The scheduling server may query the media resource distribution information stored in the metadata server to generate an access Uniform Resource Locator (Uniform Resource Locator, URL) for the user terminal to access the distributed storage system. The user terminal can use the Uniform Resource Locator (Uniform Resource Locator, URL) allocated by the scheduling server to send a media playback request to the distributed storage system through the IP network outside the distributed storage system, and obtain media resources from the distributed storage system. Play media resources.

At present, when user terminals play media resources, they usually play in units of the smallest playback unit that can be played by media resources. Therefore, when user terminals request media resources from the distributed storage system, they are also distributed in units of the smallest playback unit. requested by the storage system. However, if according to the existing distributed storage method of splitting media resources into multiple Stripes according to the size of the storage stripe, and using multiple copies or an error code mechanism to store the media resources on different storage servers, the A minimum playback unit is split into multiple Stripes and stored on different storage servers. The distributed storage system needs to transport multiple Stripes of a minimum playback unit stored on different storage servers to obtain the minimum playback unit and give feedback For the user terminal, this may cause a decrease in the overall performance of the distributed storage system.

In the embodiment of the present application, in order to improve the overall performance of the distributed storage system, a method for storing media resources is provided. In this method, the media resource is written to the server and the media resource is written in the unit of the smallest playback unit that the media resource can play. Stored in the storage server, so that when the user terminal requests to obtain the minimum playback unit of a certain media resource stored in the distributed storage system, the distributed storage system can directly schedule the minimum playback unit from the storage server that stores the minimum playback unit And feed back to the user terminal without moving media resources among the storage servers of the distributed storage system, which can reduce the internal IP network bandwidth requirements of the distributed storage system and help improve the overall performance of the distributed storage system.

It should be noted that the smallest playback unit that can be played by media resources in the embodiment of the present application can be understood as a media resource fragment file that divides media resources in time, and the media resource fragment files are based on different service playback protocols of media resources. They have different sizes. For example, when using the HSL protocol under the ABR playback mechanism, a media resource segment file is usually 10 seconds, and when using the DASH protocol under the ABR playback mechanism, a media resource segment file is usually 2 seconds. In the following embodiments of the present application, for the convenience of description, the minimum playback unit is referred to as a media resource fragment file. Of course, the name of the minimum playback unit may be different under different playback mechanisms, which is not limited in the embodiment of the present application. For the same media resource, the playback code stream is inconsistent, and the smallest playback unit is also inconsistent.

The embodiments of the present application hereinafter describe the method for storing and playing media resources involved in the present application in combination with practical applications.

Figure 2 is a flow chart of the implementation of the method for storing media resources provided by the present application, referring to Figure 2, including:

S101: The media resource writing server obtains the media resource fragment file.

In the embodiment of this application, the media resource writing server can obtain the media resource carrying the media resource URL in a streaming manner, then parse the media resource URL included in the media resource, and use the standard OTT (Over The Top) playback protocol Get the media resource fragment file of the media resource. Wherein, in addition to the media resource segment file, the media resource may also include one or more of the media resource primary index, secondary index file, subtitle file and other media resource information. Among them, other media resource information such as primary index files, secondary index files, and subtitle files can be stored in a general distributed storage method, which is not limited in the embodiment of this application, and only the storage method of media resource fragment files is described below. illustrate.

Wherein, the embodiment of the present application does not limit the media resource writing server to use such as OTT playback protocol to obtain media resource fragment files, for example, other protocols such as Text Transfer Protocol (File Transfer Protocol, FTP) can also be used to obtain media resource fragment files.

In the embodiment of the present application, a dedicated media resource streaming writing interface can be set, and in the case of distributed storage in units of media resource fragment files, the media resource writing server can be triggered through the media resource writing interface Acquire media resource fragment files, and store the media resource fragment files. Of course, in this embodiment of the application, according to the user's access popularity, a certain popular media resource can be obtained directly by using the media resource URL, and the media resource fragment file of the media resource can be obtained by parsing, without setting the above-mentioned dedicated media Resource streaming write interface.

S102: The media resource writing server stores the acquired media resource segment files in units of media resource segment files to the storage server.

In this embodiment of the application, the media resource writing server stores media resource fragment files in the storage server in units of media resource fragment files, which means that the storage server storing media resources includes one or more complete media resource fragment files, and each storage The media resource fragment files stored on the server form the media resource.

Wherein, for the same media resource, the playback code stream is inconsistent, and the minimum playback unit is also inconsistent, so the size of each media resource fragment file stored on each storage server in the embodiment of the present application may also be inconsistent. Of course, for the same playback code stream, the sizes of the fragmented files of the media resources stored on the storage servers may also be the same.

Wherein, a media resource usually includes a plurality of media resource fragment files. In a possible implementation manner of the embodiment of the present application, Y continuous media resource fragment files may be used as a fragment file storage unit, and the fragment The piece file storage unit is used as a unit, and the media resources are stored in the storage server. Wherein, Y is a positive integer, and the specific value of Y is not limited, and can be set according to system configuration and characteristics of media resources, and can be set to 1, 2, 3 or N, where N is a positive integer. For example, if the media resource is a video file, a video file usually includes a plurality of video fragment files with different resolutions. In the embodiment of the present application, Y continuous video fragment files with the same resolution can be stored as a fragment file. unit, and store the media resource in the storage server by taking the fragmented file storage unit as a unit. Among them, different Y values can be set for different resolutions. For example, for a video fragment file with a resolution of 240P, the Y value can be set to 16, and for a video fragment file with a resolution of 720P, the Y value can be set to 4 , for video fragment files with a resolution of 4K, the Y value can be set to 2.

Figure 3 is a schematic diagram of the implementation process of the media resource writing server provided by the embodiment of the present application and storing the media resource to the storage server in units of fragmented file storage units, referring to Figure 3, including:

S201: The media resource writing server acquires a media resource fragment file, and forms Y consecutive media resource fragment files into a fragment file storage unit.

S202: The media resource writing server stores the segment file storage unit including Y continuous media resource segment files to the storage server.

In the embodiment of the present application, when the media resource writing server stores each fragmented file storage unit in the storage server, different redundancy processing may be performed according to different reliability policies. For example, multi-copy redundancy, error code redundancy and no redundancy processing may be performed on a segment file storage unit including Y media resource segment files.

When using multi-copy redundancy for storage processing, the media resource writing server can copy N copies of the fragment file storage unit including Y media resource fragment files, where N is a positive integer, and store the N fragment files Units are stored on different storage servers. For example, as shown in Figure 3, the value of N is 3, and the three-copy redundancy method is adopted. A copy including Y The fragment file storage unit of the media resource fragment file.

When the error code redundancy method is used for storage processing, the media resource writing server can wait for receiving N consecutive fragmented file storage units, use the error code algorithm to calculate M redundant units, and write N and M respectively to N+M different storage servers. Wherein, both N and M are positive integers. For example, in FIG. 3 , the segment file storage unit M1 is stored on the storage server 1 , the segment file storage unit M2 is stored on the storage server 2 , and the segment file storage unit M3 is stored on the storage server 3 .

When storage processing is performed in a non-redundant manner, the media resource writing server can store the fragmented file storage unit comprising Y media resource fragmented files on a certain storage server, for example, in FIG. 3, the fragmented file storage unit Stored on storage server 2. Wherein, the media resource writing server may select a storage server with a lower load to store the fragmented file storage unit based on the principle of load balancing.

S203: Continue to acquire media resource fragment files, and according to the storage method involved in S202, for each fragment file storage unit, any one of the above-mentioned redundant processing methods can be selected for redundant processing, and stored in the storage server, until All the media resource segment files of the media resource are stored on the storage server of the distributed storage system.

In the embodiment of the present application, after the distributed storage system stores the media resource in the storage server as a media resource fragment file (the smallest playback unit that can be played by the media resource) according to the above method, the distributed storage system can directly obtain the media resource from the storage server. Fragment files are used as a unit to schedule media resource fragment files and feed them back to user terminals, without the need to move media resources between storage servers in the distributed storage system to form media resource fragment files and then feed them back to user terminals, which can reduce the impact on distributed storage. The internal IP network bandwidth requirements of the system help to improve the overall performance of the distributed storage system. In the embodiment of the present application, in order to facilitate subsequent user terminals to call media resource fragment files from the distributed storage system, the media resource writing server may save the distribution information of the media resource fragment files after storing the media resource fragment files to the storage server To the metadata server of the distributed storage system, wherein the distribution information of the media resource fragment file is used to indicate the corresponding relationship between the media resource fragment file and the storage server storing the media resource fragment file. Subsequent user terminals need to call media resource fragment files from the distributed storage system, the scheduling server can query the media resource distribution information stored in the metadata server to generate a fragment URL for the user terminal to access the distributed storage system, through the fragment URL Instruct the user terminal to obtain the address of the media resource segment file.

Wherein, the implementation steps of the media resource writing server saving the distribution information of the media resource fragment files to the metadata server of the distributed storage system can be performed on the basis of the method shown in FIG. 2, or can be performed on the basis of the method shown in FIG. Execution on the basis of the method shown in FIG. 3 will be described in the following embodiments of the present application as an example.

Figure 4 shows another implementation flowchart of the storage media resources provided by the embodiment of the present application, S301, S302 and S304 in Figure 4 are the same as the execution steps of S201, S202 and S203 in Figure 3, and will not be repeated here , and only the differences are described below.

S303: The media resource writing server saves the distribution information of the media resource segment files to the metadata server of the distributed storage system.

In the embodiment of the present application, when the media resource writing server performs different redundant processing on the fragment file storage units including Y media resource fragment files, it is necessary to save the distribution information of the redundantly processed fragment file storage units to the metadata server. For example, if multi-copy redundancy processing is performed on a media resource fragment file, the multi-copy distribution information of the fragment file storage unit needs to be saved to the metadata server. If error code redundancy processing is performed on media resource fragment files, the distribution information of M+N fragment file storage units needs to be saved to the metadata server.

In the embodiment of the present application, the implementation process in which the distributed storage system schedules the media resource fragment files from the storage server in units of media resource fragment files and feeds them back to the user terminal will be described below.

In the embodiment of the present application, in order to realize the scheduling of media resource fragmented files from the distributed storage system, a scheduling server can be set up, through which the scheduling server responds to the media resource playback request sent by the user terminal and implements according to the media resource distribution information stored in the metadata server Scheduling of media resources stored in the storage server.

In a possible implementation of the present application, the user terminal sends a media resource play request, and the scheduling server obtains the media resource play request sent by the user terminal, and queries the media resource requested by the media resource play request stored on the metadata server. The first-level index information is generated and the index file is fed back to the user terminal. The bit rate of the streaming media is recorded in the first-level index file of the media resource. The user terminal can analyze the received first-level index file, and select according to the terminal type and network bandwidth. Applying the bit rate of the media resource requested by the media resource playback request, and sending a request to the scheduling server to generate a secondary index file, the secondary index file generated by the request corresponds to the media resource playback request sent by the user terminal. media resources. The scheduling server inquires the distribution information of the media resource fragment file of the media resource requested by the media resource play request stored in the metadata server, and generates a secondary index file according to the distribution information of the media resource fragment file, and the generated secondary index file Each media resource fragment file of the media resource requested by the media resource playback request in the index file has a fragment URL corresponding to it, and the fragment URL includes the URL of the corresponding media resource fragment file stored in the distributed storage system. Storage server address. Therefore, the user terminal can send a media resource fragment file play request to the storage server corresponding to the storage server address indicated by the fragment URL according to the fragment URL of each media resource fragment file, and the storage server obtains the media resource fragment file play request Afterwards, the corresponding media resource segment files can be directly read locally and fed back to the user terminal, without using the internal network to obtain media resources from other storage servers, and without feeding back to other third-party servers such as streaming media servers, which can improve Performance of distributed storage systems. Fig. 5 is a schematic diagram of an implementation process of directly responding to a media resource fragment playback request sent by a user terminal through a storage server.

In another possible implementation of the present application, a streaming media server independent of the storage server may also be set up, the user terminal sends a media resource play request, and the scheduling server obtains the media resource play request sent by the user terminal, and sends the media resource The playback request is dispatched to the streaming media server, and the streaming media server queries the distribution information of the media resources in the metadata server and obtains the distribution information of the media resources, generates the first-level index file and the second-level index file and feeds them back to the user terminal. The addresses of the segment URLs of each media resource segment file in the secondary index file generated by the server and fed back to the user terminal are streaming media servers. After the user terminal sends a media resource segment playback request, the media resource segment playback request is accepted Routing to the streaming media server, the streaming media server queries from the metadata server the storage server where the media resource fragment file requested by the media resource fragment playback request is located, and obtains the media resource fragment file from the storage server and feeds it back to the user terminal. Using the streaming media server to realize the scheduling of media resource fragment files in the storage server can avoid using the internal network to obtain media resources from other storage servers to improve the performance of the distributed storage system to a certain extent, and in the fragment URL generated by the streaming media server It does not include the address of the storage server that stores the fragmented files of each media resource, so it can reduce the exposure of the storage server address to the user terminal, improve security to a certain extent, and is applicable to some scenarios with high security and isolation requirements. Refer to FIG. 6 for a schematic diagram of an implementation process of scheduling media resource fragment files on the storage server through the streaming media server.

It should be noted that the process of generating primary index files and secondary index files involved in the process of the storage server or the streaming media server obtaining the playback request of the media resource fragment file is only a schematic illustration and does not refer to it. To limit, for example, in order to reduce the pressure on the scheduling server, the scheduling server can redirect the media resource playback request sent by the user terminal to the storage server, and the storage server will generate the first-level index file and the second-level index file. For another example, an index server dedicated to generating index files can also be set up. After the scheduling server obtains the media resource play request sent by the user terminal, it redirects the media resource play request to the index server, and the index server generates the first-level index file and Secondary index file.

In this embodiment of the application, no matter whether the storage server directly responds to the media resource segment file playback request sent by the user terminal and schedules the media resource segment file, or the streaming media server responds to the media resource segment file playback request sent by the user terminal and schedules The media resource fragment file is all to use the media resource fragment file as a unit, obtains the media resource fragment file requested by the media resource fragment file playback request from the storage server of the distributed storage system, and sends to the The media resource segment files obtained by the user terminal feedback can improve the overall performance of the distributed storage system to a certain extent.

In the embodiment of the present application, the process of obtaining the media resource fragment file requested by the media resource fragment file playback request from the storage server will be described in detail below.

For the convenience of description, it will be able to respond to the media resource fragment playback request sent by the user terminal and obtain the media resource fragment file playback request from the storage server of the distributed storage system in units of media resource fragment files. The server that feeds back the acquired media resource fragment files to the user terminal is called the first server, and the first server may be a storage server or a streaming media server.

FIG. 7 is a flowchart of an implementation of the first server scheduling the playback of media resource fragment files requested by the user terminal provided by the embodiment of the present application. See Figure 7, including:

S401: The first server in the distributed storage system acquires a media resource segment file play request sent by a user terminal.

In the embodiment of the present application, the process of the first server obtaining the playback request of the media resource segment file sent by the user terminal can refer to the process of the storage server or the streaming media server obtaining the playback request of the media resource segment file in the above-mentioned embodiments, which will not be repeated here. repeat.

S402: The first server acquires the media resource fragment file requested by the media resource fragment file playback request from the storage server of the distributed storage system in units of media resource fragment files.

In the embodiment of the present application, if the first server is a storage server, the media resource segment file playback request sent by the user terminal obtained by the storage server is sent by the user terminal according to the segment URL, and the storage server included in the segment URL The storage server corresponding to the server address is a storage server that responds to the media resource segment file playback request sent by the user terminal, and is also a storage server that stores the media resource segment file requested by the media resource segment file playback request.

In the embodiment of this application, if the distributed storage system adopts a redundant processing method to store media resource fragment files, the same media resource fragment files may be stored on different storage servers. When including the storage server address, different processing methods can be adopted according to different redundancy processing strategies. For example, if the multi-copy redundancy processing method is adopted, each media resource fragment file has multiple copies distributed on different storage servers, and it is necessary to select an appropriate storage server for different media resource fragment files according to the load balancing principle. The media resource segment file, and include the address of the selected storage server when generating the corresponding segment URL. If the error code redundancy processing method is used, each media resource fragment file has only one copy and is only stored on one storage server, and only the storage server can be selected to provide the media resource fragment file, and the storage included when generating the fragment URL The server address is the address of the storage server that provides the media resource segment files. If the non-redundant processing method is used, each media resource fragment file is only stored on one storage server, and only this storage server can be selected to provide the media resource fragment file. The storage server address included when generating the fragment URL is This provides the storage server address of the media resource fragment file.

In the embodiment of the present application, if the first server is a streaming media server, the process for the streaming media server to obtain media resource fragment files from the storage server can refer to the storage included in the generated fragment URL when the first server is a storage server. The process of determining the storage server in the server address will not be repeated here.

In the embodiment of the present application, when the first server obtains the media resource fragment file from the storage server, the media resource fragment file may be lost. If the storage server fails or The failure of a certain hard disk in the storage server may cause the loss of fragmented files of media resources. It is necessary to use the reliability provided by the redundant processing method in the system to restore the lost content. In the embodiment of the present application, the process of recovering the content of the lost media resource fragment file is illustrated below by using the multi-copy redundancy processing method, the error code redundancy processing method and the no-redundancy processing method, as shown in FIG. 8 .

In the embodiment of the present application, when the multi-copy redundancy processing method is used, if the storage server storing a certain copy fails, the rest of the available copies can be used to recover on the storage server in normal state. For example, in FIG. 8 , the media resource fragment file A is stored in storage server 1, storage server 2 and storage server n respectively in a three-copy redundant mode. If storage server 1 fails, all media resources stored on storage server 1 will be divided If the fragment file is lost, the server with monitoring and management functions in the distributed storage system can use storage server n+1 to restore the lost media resource fragment file A of storage server 1 when it detects that storage server 1 fails. The server of the management function sends a media resource fragment file restoration request to the storage server n+1, and indicates in the media resource fragment file restoration request to restore through the storage server 2, so the storage server n+1 receives the media resource fragment file restoration request. After the request, the media resource fragment file A can be obtained from the storage server 2 and stored locally, and a response message indicating that the media resource fragment file A has been successfully restored is sent to the server with monitoring and management functions. The server with monitoring and management functions updates the distribution information of the media resource fragment file A stored in the metadata server.

In the embodiment of this application, in the case of using the error code redundancy processing method, if the storage server storing a certain media resource fragment file fails, it is necessary to read the remaining N-1 media resource fragments, and read The redundant information fragment M reconstructs the lost media resource fragment file and saves it on a storage server with a normal state. For example, in Figure 8, four consecutive media resource fragment files A, B, C, and D that adopt 4+2 redundant processing are stored in storage service areas 1, 2, 3, and 4 respectively, and two redundant media resources Shard files are kept on servers 5 and n. If server 1 fails and media resource fragment file A is lost, and the server with monitoring and management functions in the distributed storage system detects that storage server 1 fails, storage server n+1 can be used to restore the lost media of storage server 1 Resource slice file A. The server with monitoring and management functions requests storage server n+1 to restore the media resource fragment file, and indicates in the media resource fragment file restoration request to restore through storage servers 2, 3, 4 and 5, so storage server n+ 1 After receiving the media resource fragment file recovery request, the recovery information of the media resource fragment file A can be obtained from storage servers 2, 3, 4 and 5, and the media resource fragment file can be restored using the obtained recovery information using the error code algorithm A and save it locally. The storage server n+1 sends a response message indicating that the recovery of the media resource segment file A is successful to the server with monitoring and management functions. The server with monitoring and management functions updates the distribution information of the media resource fragment file A stored in the metadata server.

In the embodiment of this application, in the case of using the non-redundant processing method, if the storage server storing a certain media resource fragment file fails, it is necessary to obtain the media resource fragment file from the media resource source site, and use the normal storage The server restores the media resource fragment file. For example, in Figure 8, the media resource fragment file A is stored on the storage server 1. If the server 1 fails, the media resource fragment file A is lost. The distributed storage system has monitoring and management functions If the server detects the failure of storage server 1, storage server n+1 can be used to restore the lost media resource fragment file A of storage server 1. The server with monitoring and management functions requests the storage server n+1 to restore the media resource fragment file, and the storage server n+1 obtains the media resource from the source station of the media resource fragment file A after receiving the media resource fragment file restoration request Shard file A and save it locally. The storage server n+1 sends a response message indicating that the recovery of the media resource segment file A is successful to the server with monitoring and management functions. The server with monitoring and management functions updates the distribution information of the media resource fragment file A stored in the metadata server.

In the embodiment of the present application, after the storage server with a normal state recovers the media resource fragment file stored on the faulty storage server, it sends a response message that the media resource fragment file A has been successfully restored to the server with monitoring and management functions, which has monitoring and management functions. The server with the management function updates the distribution information of the media resource segment file A stored in the metadata server, so that subsequent user terminals can accurately schedule the media resource segment file.

S403: After obtaining the media resource fragment file, the first server feeds back the obtained media resource fragment file to the user terminal.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between servers in the distributed storage system. It can be understood that, in order to realize the above-mentioned functions, each server in the distributed storage system includes a corresponding hardware structure and/or software unit for performing each function. Combining the units and algorithm steps of each example described in the embodiments disclosed in this application, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the technical solutions of the embodiments of the present application.

The embodiment of the present application can divide the functional units of each server in the distributed storage system according to the above method example, for example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing in the unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiment of the present application is schematic, and is only a logical function division, and there may be another division manner in actual implementation.

Based on the same idea as that of the foregoing method embodiments, the embodiments of the present application provide a device for storing media resources.

In the case of using an integrated unit, FIG. 9 shows a schematic structural diagram of an apparatus 100 for storing media resources provided by an embodiment of the present application. Referring to FIG. 9 , the apparatus 100 for storing media resources includes an acquisition unit 101 and a processing unit 102 . Wherein, the obtaining unit 101 is configured to obtain a media resource fragment file, wherein the media resource fragment file is the smallest playback unit that the media resource can play. The processing unit 102 is configured to take the media resource fragment file as a unit, and store the media resource fragment file acquired by the acquisition unit 101 in the storage server of the distributed storage system, wherein each media resource stored in each storage server Shard files make up a media resource.

Wherein, the size of each media resource segment file stored in the storage server may be different.

In a possible implementation manner, the processing unit 102 is further configured to: save the distribution information of the media resource fragment file to the metadata server of the distributed storage system, wherein the distribution information of the media resource fragment file is used for Indicates the correspondence between the media resource fragment file and the storage server storing the media resource fragment file.

In yet another possible implementation manner, the processing unit 102 may determine consecutive Y pieces of media resource fragment files as a fragment file storage unit, wherein Y is a positive integer; The unit is a unit, and the acquired media resource segment file is stored in the storage server.

When implemented in the form of hardware, in the embodiment of the present application, the acquisition unit 101 may be an input and output interface, and the processing unit 102 may be a processor or a controller, where the input and output interfaces are collectively referred to and may include one or more interfaces.

When the acquisition unit 101 is an input/output interface and the processing unit 102 is a processor, the device 100 for storing media resources involved in this embodiment of the present application may be the device for storing media resources shown in FIG. 10 . Wherein, the device for storing media resources shown in FIG. 10 may be a media resource writing server.

FIG. 10 is a schematic diagram of a media resource writing server 1000 provided by an embodiment of the present application. The media resource writing server 1000 can be used to execute the execution method of the media resource writing server involved in FIG. 2 to FIG. 8 . As shown in FIG. 10 , the media resource writing server 1000 includes: an input and output interface 1001 , a processor 1002 and a memory 1003 . The input and output interface 1001 , the processor 1002 and the memory 1003 may be connected through a bus system 1004 .

The memory 1003 is used to store programs, instructions or codes. The processor 1002 is configured to execute the program in the memory 1003 to control the input and output interface 1001 to obtain media resource fragment files and implement the steps and functions implemented by the media resource writing server in the above embodiment, here No longer. For the specific implementation manners of the input and output interface 1001 and the processor 1002, reference may be made to the specific descriptions of the acquisition unit 101 and the processing unit 102 in the implementation manner of FIG. 9 , and details are not repeated here.

Based on the same idea as that of the foregoing method embodiments, the embodiments of the present application further provide an apparatus for scheduling media resources.

In the case of using an integrated unit, FIG. 11 shows a schematic structural diagram of an apparatus 200 for scheduling media resources provided by an embodiment of the present application. Referring to FIG. 11 , the apparatus 200 for scheduling media resources includes an acquiring unit 201 and a sending unit 202 .

Wherein, the acquiring unit 201 is configured to acquire the media resource fragment file playback request sent by the user terminal, and obtain the media resource fragment file playback request from the storage server of the distributed storage system in units of media resource fragment files. Requests the requested media resource shard file. The sending unit 202 is configured to feed back the media resource segment files acquired by the acquiring unit 201 to the user terminal.

In a possible implementation manner, the device for scheduling media resources is the storage server in a distributed storage system. The scheduling server in the distributed storage system generates a segment URL according to the distribution information of the media resource segment file stored in the metadata server in the distributed storage system, and the segment URL includes the URL stored in the distributed storage system. The storage server address of the media resource fragment file requested by the media resource fragment file playback request. The user terminal sends the media resource fragment file play request to the storage server according to the fragment URL, and acquires the media resource fragment file.

In another possible implementation manner, the device for scheduling media resources is a streaming media server independent of the storage server, and the streaming media server generates a segment URL, and the segment URL includes the address of the streaming media server The user terminal sends the media resource fragment file playback request to the streaming server according to the fragment URL, and the streaming media server obtains the media resource fragment file from the storage server and feeds it back to the user terminal.

When implemented in the form of hardware, in the embodiment of the present application, the acquiring unit 201 may be an input interface, and the sending unit 202 may be an output interface, where the output interface and the input interface are collectively referred to and may include one or more interfaces.

When the acquiring unit 201 is an input interface and the sending unit 202 is an output interface, the apparatus 200 for scheduling media resources involved in this embodiment of the present application may be the first server shown in FIG. 12 . Wherein, the first server shown in FIG. 12 may be a storage server or a streaming media server.

FIG. 12 is a schematic diagram of the first server 2000 provided by the embodiment of the present application. The first server 2000 may be used to execute the execution method of the first server involved in FIG. 7 . As shown in FIG. 12 , the first server 2000 includes: an input interface 2001 and an output interface 2002 . Wherein, a processor 2003 and a memory 2004 may also be included. The input interface 2001 , output interface 2002 , processor 2003 and memory 2004 may be connected through a bus system 2005 .

The memory 2004 is used to store programs, instructions or codes. The processor 2003 is configured to execute the program in the memory 2004 to control the input interface 2001 to obtain a media resource playback request, control the output interface 2002 to feed back the media resource fragment file, and implement the first server in the above embodiment. The steps and functions will not be repeated here. For specific implementation manners of the above-mentioned input interface 2001 and output interface 2002, reference may be made to the specific descriptions in the acquisition unit 201 and the sending unit 202 in the implementation manner of FIG. 11 , and details are not repeated here.

It can be understood that Fig. 10 and Fig. 12 only show simplified designs of the media resource writing server and the first server. In practical applications, the media resource writing server and the first server are not limited to the above-mentioned structures, and may include any number of interfaces, processors and memories in practical applications, and all terminals that can implement the embodiments of the present application are in Within the scope of protection of the embodiments of the present application.

It can be further understood that the device 100 for storing media resources and the server 1000 for writing media resources involved in the embodiment of the present application, as well as the device 200 for scheduling media resources and the first server 2000 can be used to implement the above method embodiments of the embodiments of the present application For the corresponding functions of the media resource writing server and the first server, where the description of the embodiment of the present application is not detailed enough, you can refer to the description of the related method embodiment, and the embodiment of the present application will not repeat it here.

It can be further understood that the processor involved in the embodiment of the present application may be a central processing unit (Central Processing Unit, CPU, or other general processors, digital signal processors (DSP), application specific integrated circuits (ASIC) , off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

The memory, which can include read only memory and random access memory, provides instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.

In addition to the data bus, the bus system can also include a power bus, a control bus, and a status signal bus. However, for the sake of clarity, the various buses are labeled as bus systems in the figures.

In the implementation process, the various steps involved in the above method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The steps of the message processing method disclosed in the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps involved in the foregoing method embodiments in combination with its hardware. To avoid repetition, no detailed description is given here.

The embodiment of the present application also provides a distributed storage system, and the distributed storage system includes a media resource writing server, a storage server, and a first server. Wherein, the media resource writing server is the above-mentioned device or media resource writing server related to the storage of media resources, and is used to obtain media resource fragment files and divide the media resources into The slice files are stored to the storage server. The storage server is configured to store the media resource fragment files in units of media resource fragment files. The first server is the device for scheduling media resources or the first server involved in the above, and is used to obtain the media resource segment file playback request sent by the user terminal, and use the media resource segment file as a unit, from the distributed The storage server of the storage system obtains the media resource fragment file requested by the media resource fragment file play request, and feeds back the media resource fragment file to the user terminal.

Wherein, the distributed storage system may further include one or more of the metadata server and the scheduling server involved in the foregoing method embodiments.

The embodiments of the present application also provide a computer-readable storage medium or a computer program product, which is used to store a computer program, and the computer program is used to execute the methods for storing and scheduling media resources involved in the above method embodiments.

In the method, device, and distributed storage system for storing and scheduling media resources provided by the embodiments of the present application, the media resource writing server stores the media resources in the storage server in units of the smallest playback unit that the media resources can play, so that the user terminal When requesting to obtain the minimum playback unit of a certain media resource stored in the distributed storage system, the distributed storage system can directly schedule the minimum playback unit from the storage server storing the minimum playback unit and feed it back to the user terminal without distributing Moving media resources between storage servers in the distributed storage system can reduce the requirements for the internal IP network bandwidth of the distributed storage system and help improve the overall performance of the distributed storage system.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the embodiment of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if the modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and equivalent technologies, the present application also intends to include these modifications and variations.

Claims (15)

1. a kind of method of storage media resource, which is characterized in that be applied to distributed memory system, the distributed storage system System includes media resource write service device and storage server, the method includes：

The media resource write service device obtains media resource slicing files, wherein the media resource slicing files are matchmakers The minimum broadcast unit that body resource can play；

The media resource write service device is as unit of media resource slicing files, by the media resource fragment text of the acquisition Part is stored to the storage server, wherein stores each media resource slicing files composition media money into storage server Source.

2. the method as described in claim 1, which is characterized in that further include Metadata Service in the distributed memory system Device, the method further include：

The media resource write service device preserves media resource slicing files distributed intelligence to the meta data server, In, the media resource slicing files distributed intelligence is used to indicate media resource slicing files, divides with the storage media resource Correspondence between the storage server of piece file.

3. method as claimed in claim 1 or 2, which is characterized in that the media resource write service device is with media resource point Piece file is unit, and the media resource slicing files of the acquisition are stored to the storage server, including：

Continuous Y media resource slicing files are determined as a slicing files storage by the media resource write service device Unit, the Y are positive integer；

The media resource write service device is as unit of the slicing files storage unit, by the media resource of the acquisition point Piece file is stored to the storage server.

4. method as described in any one of claims 1 to 3, which is characterized in that store each media money into storage server Source slicing files it is of different sizes.

5. a kind of method of scheduled media resource, which is characterized in that including：

First server in distributed memory system obtains the media resource slicing files playing request that user terminal is sent；

The first server is as unit of media resource slicing files, from the storage server of the distributed memory system The requested media resource slicing files of the media resource slicing files playing request are obtained, and are fed back to the user terminal The media resource slicing files of acquisition.

6. method as claimed in claim 5, which is characterized in that the first server is described in distributed memory system Storage server；

The media resource slicing files playing request is the user terminal according to transmitted by fragment uniform resource position mark URL 's；

The fragment URL is by the dispatch server in the distributed memory system according to the member in the distributed memory system The media resource slicing files distributed intelligence that is preserved in data server generates, and includes in distributed memory system described in storage The storage server address of the requested media resource slicing files of media resource slicing files playing request.

7. method as claimed in claim 5, which is characterized in that the first server is independently of the storage server Streaming media server.

8. a kind of device of storage media resource, which is characterized in that including：

Acquiring unit, for obtaining media resource slicing files, wherein the media resource slicing files are that media resource can The minimum broadcast unit of broadcasting；

Processing unit, the media resource fragment text for as unit of media resource slicing files, the acquiring unit to be obtained Part is stored to the storage server of distributed memory system, wherein stores each media resource fragment into each storage server File forms media resource.

9. device as claimed in claim 8, which is characterized in that the processing unit is additionally operable to：

Media resource slicing files distributed intelligence is preserved to the meta data server of distributed memory system, wherein the matchmaker Body resource slicing files distributed intelligence be used to indicate media resource slicing files, with store the media resource slicing files and deposit Store up the correspondence between server.

10. device as claimed in claim 8 or 9, which is characterized in that the processing unit is provided with media in the following way Source slicing files are unit, and the media resource slicing files of the acquisition are stored to the storage server：

By continuous Y media resource slicing files, it is determined as a slicing files storage unit, the Y is positive integer；

As unit of the slicing files storage unit, the media resource slicing files of the acquisition are stored to the storage and are taken Business device.

11. such as claim 8 to 10 any one of them device, which is characterized in that store each media into storage server Resource slicing files it is of different sizes.

12. a kind of device of scheduled media resource, which is characterized in that including：

Acquiring unit, the media resource slicing files playing request for obtaining user terminal transmission, with media resource fragment text Part is unit, and media resource slicing files playing request institute is obtained from the storage server of the distributed memory system The media resource slicing files of request；

Transmission unit, for feeding back the media resource slicing files that the acquiring unit obtains to the user terminal.

13. device as claimed in claim 12, which is characterized in that the device of the scheduled media resource is distributed storage system The storage server in system；

The media resource slicing files playing request is the user terminal according to transmitted by fragment uniform resource position mark URL 's；

The fragment URL is by the dispatch server in distributed memory system according to the metadata in the distributed memory system The media resource slicing files distributed intelligence preserved in server generates, and includes that the media are stored in distributed memory system The storage server address of the requested media resource slicing files of resource slicing files playing request.

14. device as claimed in claim 12, which is characterized in that the device of the scheduled media resource is to be deposited independently of described Store up the streaming media server of server.

15. a kind of distributed memory system, which is characterized in that including media resource write service device, storage server and first Server；

The media resource write service device is the device that claim 8 to 11 any one of them stores media resource, is used for It obtains media resource slicing files and as unit of media resource slicing files, the media resource slicing files is stored to institute State storage server；

The storage server, for as unit of media resource slicing files, storing the media resource slicing files；

The first server is the device of claim 12 to 14 any one of them scheduled media resource, for obtaining user The media resource slicing files playing request that terminal is sent, as unit of media resource slicing files, from the distributed storage The requested media resource slicing files of media resource slicing files playing request are obtained at the storage server of system, to The user terminal feeds back the media resource slicing files.