WO2017198144A1

WO2017198144A1 - Disaster tolerance method for iptv system, and iptv disaster tolerance system

Info

Publication number: WO2017198144A1
Application number: PCT/CN2017/084542
Authority: WO
Inventors: 童浩; 刘会军; 黄胜鲁
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-05-20
Filing date: 2017-05-16
Publication date: 2017-11-23
Also published as: CN107404394A; CN107404394B

Abstract

A disaster tolerance method for an IPTV system, and an IPTV disaster tolerance system. A primary central platform (1) and a standby central platform (2) in different networks; the standby central platform (2) is arranged such that in the process where the primary central platform (1) normally operates, a standby service provision device (24) of the standby central platform (2) accesses the primary central platform (1) and provides service for a user at the same time with the primary central platform (1).

Description

IPTV system disaster tolerance method and IPTV disaster recovery system

Technical field

The present invention relates to, but is not limited to, the field of IPTV (Internet Protocol Television), and more particularly to an IPTV system disaster tolerance method and an IPTV disaster tolerance system.

Background technique

IPTV is a system that uses broadband networks to transmit television information to the medium. The main functions of IPTV include live broadcast, on-demand, look back, time shift, personal local program recording, personal network program recording, Web On TV, Flash On TV, online games. In recent years, with the rapid development of the media and the popularity of broadband services, the number of IPTV programs has increased rapidly, and the number of users has also increased. This has put the background service equipment under increasing pressure, so how to make the system carry a large number of users. At the same time, it is more stable and becomes a problem that service providers need to solve.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the present invention provides an IPTV system disaster recovery method and an IPTV disaster recovery system, which avoids the IPTV disaster recovery solution. The standby platform starts to provide services only after the main platform fails, and the existing resources are wasted, and the main device can be improved. Backup efficiency.

An embodiment of the present invention provides an IPTV disaster recovery system, including: a primary center platform and a standby center platform disposed in different networks;

The backup center platform is configured to access the main central platform by the backup service providing device of the backup central platform during the normal operation of the main central platform, and provide services for the user simultaneously with the main central platform.

In an embodiment of the present invention, the main central platform includes a primary service control center; a primary interface device, a primary database, and a primary service providing device communicatively coupled to the primary service control center; the primary interface device and the a primary database connected, configured to provide data for the primary database; the primary service providing device is coupled to the primary database, configured to read data from the primary database or write data to the primary database;

The backup service providing device is connected to the primary service control center and the primary database, and is configured to acquire services from the primary service control center and write data to the primary database.

In an embodiment of the present invention, the primary service providing device includes a primary service server group and a primary user access server that are connected to each other, and the backup service providing device includes a standby service server group and a backup user that are connected to each other. Access server

The primary service server group and the standby service server group are respectively connected to the primary database and the user server group, and obtain corresponding service services;

The primary user access server and the secondary user access server are connected to the primary service control center, and are configured to obtain a corresponding service server.

In an embodiment of the present invention, the backup center platform further includes a backup interface device, a standby database, and a standby service control center;

The standby interface device is configured as a backup interface device of the primary interface device;

The standby database is connected to the primary database and the standby service server group, and is configured to obtain synchronization data from the primary database, and provide read data for the standby service server group;

The standby service control center is connected to the primary service control center, and is configured as an alternate service control center of the primary service control center.

In an embodiment of the present invention, the primary service control center and each member in the main central platform, and the standby service control center, the standby service server group, and the standby user in the standby central platform A fault monitoring mechanism is provided between the access server and the standby database.

In an embodiment of the present invention, each member in the main central platform and the standby central platform is provided with an intranet address and an external network address; members in each platform are set to communicate with the platform through the intranet address. Other members communicate with each other and communicate with members of other platforms through the external network address.

In an embodiment of the present invention, the primary service control center is configured to monitor the standby When the database is faulty, the standby service server group is switched to the primary database to establish a chain;

The primary service control center is configured to: when the primary database is faulty, set the standby database to be readable and writable, and notify the primary service server group, the standby service server group, and the primary interface device access station. Describe the database.

In an embodiment of the present invention, the primary service control center is configured to switch to the standby interface device when the primary interface device fails, and connect the primary database to the standby interface device.

In an embodiment of the present invention, when the standby service control center is configured to detect that the primary service control center is faulty, the standby service control center starts to provide services instead of the primary service control center;

Each member of the main central platform, and the backup service server group, the backup user access server, and the standby database are configured to monitor the failure of the primary service control center, switch to the standby service control center, and A fault monitoring mechanism is established between the standby service control centers.

In an embodiment of the present invention, the primary service control center is configured to allocate the primary service server group to provide services for the user server group when the overall standby platform is abnormal.

In an embodiment of the present invention, when the standby service control center is configured to monitor the overall abnormality of the main central platform, the standby service control center starts, and the data synchronization mechanism between the primary database and the primary database is removed. , starting the standby interface device;

The standby service server group and the standby user access server are configured to switch to the standby service control center when the overall abnormality of the main central platform is detected.

In an embodiment of the present invention, the primary user access server and the secondary user access server simultaneously provide a primary access address and a backup access address for the set top box; and the standby user access server is configured as the primary After the central platform is abnormally activated, the set-top box is received according to the access request initiated by the standby access address.

The embodiment of the invention further provides an IPTV system disaster tolerance method, including:

During the normal operation of the main central platform, the backup service providing device of the standby central platform accesses the main central platform; the backup service providing device and the main central platform simultaneously provide services for the user; wherein the main central platform The backup center platform is set up in a different network.

Advantageous effects of embodiments of the present invention:

The embodiment of the invention provides an IPTV system disaster tolerance method and an IPTV disaster recovery system, and sets a main central platform and a standby central platform in different networks to reduce the impact of a single regional network or device failure on system services. At the same time, during the normal operation of the main central platform, the backup service providing device of the standby central platform accesses the main central platform, and provides services for the user simultaneously with the main central platform. The main center platform and the backup center platform in the embodiment of the present invention can provide services for users in the normal operation process of the main center platform, and prevent the backup service providing device of the standby center platform from being restricted during normal operation of the main central platform, thereby improving resource utilization. At the same time, it can also reduce the pressure on the main center platform. In addition, since the backup center platform has provided some services during the normal operation of the main center platform, when the main center platform fails to switch, it is only necessary to switch the part of the service on the main central platform to the standby center platform, which can be simultaneously upgraded. Active/standby switching efficiency.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

FIG. 1 is a schematic diagram of an IPTV disaster tolerance system according to an embodiment of the present invention;

2 is a schematic structural view of a main center platform and a standby center platform in FIG. 1;

FIG. 3 is a schematic diagram of a connection between an IPTV disaster recovery system and an external network according to an embodiment of the present invention;

4 is a schematic diagram of processing when a standby database is faulty according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of processing when a primary database is faulty according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of processing when a primary interface device fails according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of processing when a primary service control center is faulty according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of processing when a backup center platform is faulty according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of processing when a main center platform is faulty according to an embodiment of the present invention;

FIG. 10 is a flowchart of a disaster tolerance method for an IPTV system according to an embodiment of the present invention.

Embodiments of the invention

There are two solutions to how to make the system more stable while carrying a large number of users.

The first method is to reduce the pressure on the single-point device through the load balancing policy, and the networking mode of the active and standby devices can reduce the impact on the entire system by starting the standby machine in a single point of failure, but this method is all The devices are still on the same network. When there is a large network problem in this area or the central control node of the system fails, the service will not be available for a long time.

The second method: based on the first method, the physical address separation of the primary and backup machines is used to implement remote disaster recovery, which reduces the impact of single-area network or equipment failure on system services. Under normal circumstances, the main platform provides services separately, and the standby platform starts to provide services instead of the main platform when the main platform fails. However, in this solution, the system resources are wasted when the main platform is running normally, and once the main platform fails, the switching between the primary and backup platforms is slow, and manual intervention is required to switch normally. The switching time is long and the impact is long. user experience.

In the embodiment of the present invention, the main central platform and the standby central platform are set in different networks, and during the normal operation of the main central platform, the standby service providing device part of the standby central platform is partially connected to the main central platform, and the main central platform is connected with the main central platform. At the same time provide services to users. It can improve resource utilization and improve the switching efficiency of the primary and backup platforms. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiments of the present invention are further illustrated by the specific embodiments and the accompanying drawings.

This embodiment provides a disaster tolerance method for disaster recovery of an IPTV system, and sets an IPTV disaster recovery system including a primary central platform and a standby central platform in different networks; and then, during normal operation of the primary central platform, the standby central platform The backup service provides access to the main center platform and provides services to the user at the same time as the main center platform. It can reduce the impact of single-area network or device failures on system services, improve resource utilization, and improve the efficiency of active/standby switching.

As shown in Figure 1, the IPTV disaster recovery system in this embodiment includes two central computer rooms. Called the main central platform 1 and the standby central platform 2, both of which can provide complete IPTV services separately. The main center platform and the standby center platform in this embodiment are disposed in different physical areas to implement physical separation of devices, that is, the main central platform and the standby central platform can be respectively deployed in different cities, or in different areas of the same city. In this embodiment, the main central platform and the standby central platform are located in different networks, and the standby central platform serves as an alternate platform for the main central platform.

Referring to FIG. 2, the main central platform 1 in this embodiment may include a main service control center 11, a main interface device 12 communicatively coupled to the main service control center 11, a main database 13, and a main service providing device 14. The main interface device 12 includes a main interface device 121 and a main portal module 122, which are connected to the main database 13 and configured to provide data to the main database 13. The data is mainly imported data. In this embodiment, all data source entries are connected. The main database 13, the main database 13 can be read and written. The main service providing device 14 is connected to the main database 13, reads data from the main database 13 or writes data to the main database 13. The main service providing device 14 summarized in this embodiment includes a main service server group 141 (composed of a service server) and a main user access server 142 connected to each other; wherein the main service server group 141 is connected to the main database 13; The incoming server 142 is configured to register with the primary service control center 11 to obtain a corresponding service server.

The backup center platform 2 in this embodiment may include a standby service control center 21, a backup interface device 22, a standby database 23, and a backup service providing device 24; the standby service control center 21 is connected to the main service control center 11 as a main service control center. 11 Alternate Service Control Center. The backup interface device 22 serves as a backup interface device of the primary interface device 12, and includes a corresponding standby interface device 221 and a standby portal module 222. The standby database 23 is connected to the main database 13, which is arranged to acquire data from the main database 13 for synchronous storage by a data synchronization mechanism. The backup service providing device 24 is configured to access the main central platform 1 and the main central platform 1 while providing services to the user during the normal operation of the main central platform 1. Optionally, the backup service providing device 24 accesses the primary database 13 and the primary service control center 11, acquires corresponding service services from the primary service control center 11, and writes data to the primary database 13. Therefore, the standby center platform 2 in this embodiment serves as a backup platform of the main center platform 1, and it is not only provided to replace the main center platform 1 when the main center platform 1 fails. In the normal working process of the main central platform 1, the user is also provided with services, instead of being idle, which can improve resource utilization.

Optionally, the backup service providing device 24 in this embodiment includes a standby service server group 241 (composed of a service server) and a backup user access server 242, wherein the standby service server group 241 It may be connected only to the main database 13, which may write data to or read data from the main database 13. Of course, since the data of the standby database 13 and the standby database 23 are synchronously stored, the standby service server group 241 in this embodiment can also be connected to the standby database 23 at the same time, and the data write service requests the primary database 13, and the data read service request. Prepare the database 23. The backup user access server 242 is configured to register with the main service control center 11 to obtain a corresponding service server to provide services for the user.

The main service control center 11 is set to provide registration services for other devices and members, for example, the registration service is once every 2 minutes or once every 1 minute. The main service control center 11 is configured to allocate services to the corresponding primary service server group and standby service server group according to different platforms and devices through the registration channel. The standby service control center 21 serves as the standby service control center of the primary service control center 11, and is set to not provide services in the normal case of the primary service control center 11.

In this embodiment, each member of the main service control center 11 and the main central platform 1 (including the main interface machine 121, the main portal module 122, the main database 13, the main service server group 141, and the main user access server 142) A fault monitoring mechanism is provided between the standby service control center 21, the standby service server group 241, the backup user access server 242, and the standby database 23 in the standby center platform 2; thus, the main service control center 11 can monitor The status of each member connected thereto, and the failure detecting mechanism in this embodiment may be two-way monitoring, so that each member can also monitor the status of the main service control center 11 in real time. For example, the fault monitoring mechanism in this embodiment may be through heartbeat monitoring. There is a heartbeat between the main service control center 11 and each of the monitored members. The purpose of the heartbeat is to report the status of the other party and obtain the status of the other party. For example, the heartbeat interval can be set to 3 seconds. When the heartbeat fails for 3 times, it is considered error occured. For example, when the heartbeat monitoring mechanism is established between the primary service control center 11 and the standby service control center 21, the standby service control center 21 may not normally obtain the heartbeat message of the primary service control center 11 for three consecutive times. In the event of a failure, the standby service control center 21 initiates service in place of the primary service control center 11.

The heartbeat mechanism set between the other members of the main center platform 1 and the standby center platform 2 and the main service control center 11 may also be 3 seconds. If the heartbeat is not successful, the registration may be initiated again to the main service control center 11. If the registration is unsuccessful, the primary service control center 11 is considered to be faulty, and the registration service is initiated to the standby service control center 21, the registration service is successful, the service is updated by the registration return result, and the heartbeat and registration service with the standby service control center 21 is maintained.

Referring to FIG. 3, the figure shows the connection manner between the IPTV disaster recovery system and the user server group 3 of the external network. The three network planes in the figure are the inner network platform inner network, the standby center platform inner network and the user server group 3 (external network) network plane; the user server group 3 only has the external network address, the main central platform 1 and the standby center Each member of the platform 2 has an intranet address and an external network address; members of each platform communicate through the intranet address, and members between the platforms communicate through the external network. The user server group 3 is set to communicate with the external network address of the main service control center 11, and communicates with the service server group of the primary and backup center platforms respectively through the external network address. When members of the main central platform 1 and the standby central platform 2 interact across platforms, they communicate through the external network address. Therefore, each member configures the internal network address of the interactive server of the platform, and the external network address of the interactive server of other platforms. .

The user server group 3 is configured to register a service with the main service control center 11, and the main service control center 11 is configured to provide services according to the service server group of the primary and backup platforms respectively in the user server group 3 area, and the main service control center 11 sets It is judged whether it belongs to the main center platform or the standby center platform according to the network segment used by the platform, and different platforms use different network segments.

The primary user access server 142 and the secondary user access server 242 in this embodiment can simultaneously provide a primary access address and a secondary access address for the set top box; the set top box supports simultaneous configuration of the primary access address and the standby access address. The set-top box accesses the main center platform 1 according to the primary access address. When the main center platform 1 is abnormal, the set-top box automatically accesses the standby center platform 2 to obtain services according to the standby access address.

Based on the foregoing IPTV disaster-tolerant system provided in this embodiment, the following describes an embodiment of the present invention by using a specific process of performing a primary-standby switchover.

Referring to FIG. 4, when the primary service control center 11 detects that the standby database 23 of the standby central platform 2 is faulty, the switching standby service server group 241 and the primary database 13 are chained, and the primary database 13 is the standby service server group. 241 provides read and write services.

Referring to FIG. 5, when the primary service control center 11 detects that the primary database 13 is faulty, the standby database 23 is set to be readable and writable, and the primary service server group 141, the standby service server group 241, and the primary interface device 12 are notified. Enter the database.

Referring to FIG. 6, when the primary service control center 11 detects that the primary interface device 12 is faulty, it switches to the standby interface device 22 and connects the primary database 13 with the backup interface device 22.

Referring to FIG. 7, when the standby service control center 21 detects that the primary service control center 11 is faulty, The standby service control center 21 starts to provide services instead of the main service control center; each member of the main central platform 1 and the standby service server group 241, the backup user access server 242, and the standby database 23 monitor the failure of the main service control center 11 Switch to the standby service control center 21 and establish a fault monitoring mechanism with the standby service control center 21. At this time, the standby service control center 21 provides service distribution work.

As shown in FIG. 8 , the main service control center 11 detects an abnormality with the standby center platform 2 (including the power outage or network drop of the standby center platform 2, and the main service control center 11 can discover all the devices of the standby center platform through the heartbeat. When the status is determined, and all the devices of the standby central platform are unable to provide services, the primary service control center 11 allocates the primary service server group to provide services to the user service group, that is, the primary service server group 141 is the user. Server group 3 provides services. At this time, the set-top box only requests to access the main central platform through the primary access address to perform the login operation for login operation.

As shown in FIG. 9, the standby service control center 21 monitors the overall abnormality of the main central platform 1 (including the main central platform 1 being powered off or dropped, and the standby service control center 21 can determine that all devices of the main central platform 1 are not activated after startup. When the status is reported, the standby service control center 21 starts, the data synchronization mechanism with the primary database 13 is removed, and the standby interface device 22 is activated; the standby service server group 241 and the standby user access server 242 switch to the standby service. Control Center 21. The primary user access server 142 and the secondary user access server 242 can simultaneously provide the primary access address and the standby access address for the set top box; therefore, after the primary central platform 1 is abnormally activated as a whole, the secondary user access server 242 receives the top box according to the backup. The access request initiated by the access address accesses it.

The introduction of the switching situation of the above-mentioned multiple types of abnormalities can be seen to support the switching of single device abnormalities between the main central platform and the standby central platform in the embodiment of the present invention, and also supports the switching of abnormalities of the entire platform. In the normal situation of the main central platform, the services of the two platforms can be utilized to effectively share the load of the system. In addition, the IPTV system equipment is deployed in a sub-area. In the networking design, the communication between different platform devices distinguishes the internal and external networks. When the entire platform fails or a single node of the platform fails, the switch can be quickly performed and the area is solved. The service exception caused by the network failure, reducing the probability of interrupting the service and improving the user experience.

As shown in FIG. 10, an embodiment of the present invention further provides a disaster recovery method for a network television IPTV system. include:

During the normal operation of the main central platform, the standby service providing device of the standby central platform accesses the main central platform;

S102, the backup service providing device provides services to the user simultaneously with the main central platform;

The above main central platform and standby central platform are set in different networks.

Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions that are implemented by a processor to implement the above method.

The above is only a specific embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, equivalent change, combination or modification of the above embodiments in accordance with the technical spirit of the present invention is still in the present invention. The scope of protection of the technical solution of the invention.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical units; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile implemented in any method or technique for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that Communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media.

Industrial applicability

In the above technical solution, the main central platform and the standby central platform can simultaneously provide services for users during the normal operation of the main central platform, and the standby service providing device of the standby central platform is prevented from being restricted when the main central platform is in normal operation, thereby improving resource utilization. The rate reduces the pressure on the main center platform. In addition, the above technical solutions can also improve the efficiency of the active/standby switching.

Claims

A network television IPTV disaster tolerance system includes: a main center platform (1) and a standby center platform (2) installed in different networks;

The backup center platform (2) is configured to be accessed by the backup service providing device (24) of the backup center platform (2) during the normal operation of the main central platform (1) ( 1), providing services to users simultaneously with the main center platform (1).
The IPTV disaster tolerance system of claim 1, wherein the main central platform (1) comprises:

Main business control center (11);

a primary interface device (12), a primary database (13), and a primary service providing device (14) communicatively coupled to the primary service control center (11);

The primary interface device (12) is connected to the primary database (13) and configured to provide data for the primary database (13);

The primary service providing device (14) is connected to the primary database (13), configured to read data from the primary database (13) or write data to the primary database (13);

The backup service providing device (24) is connected to the main service control center (11) and the main database (13), and is configured to acquire services from the main service control center (11), and to the main database. (13) Write data.
The IPTV disaster tolerance system according to claim 2, wherein

The primary service providing device (14) includes:

a primary service server group (141) and a primary user access server (142) connected to each other;

The backup service providing device (24) includes:

Connected standby service server group (241) and standby user access server (242);

The primary service server group (141) and the standby service server group (241) are respectively connected to the primary database (13) and the user server group (3) to obtain corresponding service services;

The primary user access server (142) and the secondary user access server (242) are connected to the primary service control center (11) and configured to acquire a corresponding service server.
The IPTV disaster tolerant system of claim 3, wherein the backup center platform (2) further comprises:

Backup interface device (22), standby database (23), and standby service control center (21);

The backup interface device (22) is configured as a backup interface device of the primary interface device (12);

The standby database (23) is connected to the primary database (13) and the standby service server group (241), and is configured to acquire synchronization data from the primary database (13) as the standby service server group (241). ) providing read data;

The standby service control center (21) is connected to the primary service control center (11) and is configured as a standby service control center of the primary service control center (11).
The IPTV disaster tolerant system according to claim 4, wherein said primary service control center (11) is associated with each member of the primary central platform (1) and with said backup central platform (2) A fault monitoring mechanism is provided between the standby service control center (21), the standby service server group (241), the standby user access server (242), and the standby database (23).
The IPTV disaster tolerance system according to claim 4, wherein

Each member in the main central platform (1) and the backup central platform (2) is provided with an intranet address and an external network address; members of each platform are set to perform with other members of the platform through the intranet address. Communication, communicating with members of other platforms through an external network address.
The IPTV disaster tolerance system according to claim 5 or 6, wherein

The primary service control center (11) is configured to switch the standby service server group (241) to the primary database (13) when the backup database (23) fails.

The primary service control center (11) is configured to monitor when the primary database (13) fails. The standby database (23) is set to be readable and writable, and the primary service server group (141), the standby service server group (241), and the primary interface device (12) are notified to access the standby database (23). .
The IPTV disaster tolerance system according to claim 5 or 6, wherein

The primary service control center (11) is configured to switch to the standby interface device (22) when the primary interface device (12) fails, and the primary database (13) and the standby interface device (22) connection.
The IPTV disaster tolerance system according to claim 5 or 6, wherein

The standby service control center (21) is configured to detect that the primary service control center (11) fails, and the standby service control center (21) starts to provide services in place of the primary service control center (11);

Each member of the main central platform (1), and a standby service server group (241), a backup user access server (242), and a standby database (23) are configured to monitor the primary service control center ( 11) Failure, switching to the standby service control center (21), and establishing a fault monitoring mechanism with the standby service control center (21).
The IPTV disaster tolerance system according to claim 5 or 6, wherein

The primary service control center (11) is configured to allocate the primary service server group (141) to provide services for the user server group (3) when the standby center platform (2) is abnormal.
The IPTV disaster tolerance system according to claim 5 or 6, wherein

The standby service control center (21) is configured to start, when the main center platform (1) is abnormal, the standby service control center (21) starts, and the data between the primary database (13) is removed. a synchronization mechanism, starting the standby interface device (22);

The standby service server group (241) and the standby user access server (242) are set to be at When the overall abnormality of the main central platform (1) is detected, the operation is switched to the standby service control center (21).
The IPTV disaster tolerant system of claim 11, wherein the primary user access server (142) and the secondary user access server (242) simultaneously provide a primary access address and a backup access address for the set top box;

The standby user access server (242) is configured to receive the access of the set-top box according to the access request initiated by the standby access address after the main center platform (1) is abnormally started.
A network television IPTV system disaster tolerance method includes:

During the normal operation of the main central platform, the backup service providing device of the standby central platform accesses the main central platform (101);

The backup service providing device provides services to the user simultaneously with the main central platform (102);

The main central platform and the standby central platform are disposed in different networks.
A computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the method of claim 13.