Method and Device for Establishing Communication Connection

• US 20180077232A1
• Filed: 01/19/2017
• Published: 03/15/2018
• Est. Priority Date: 09/14/2016
• Status: Active Grant

• Current Assignee: Apollo Intelligent Driving Technology Company Limited
• Original Assignee: Beijing Baidu Netcom Science and Technology Company Limited (Baidu Incorporated)
• Inventors: Wang, Haifeng, Zhang, Weide, Chen, Zhuo, He, Wei, Feng, Kaiwen, Feng, Jingchao
• Granted Patent: US 10,609,133 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 41/0668 by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
• CPC Class Codes: H04L 41/0893 Assignment of logical groups to network elements
• CPC Class Codes: H04L 43/0817 by checking functioning
• CPC Class Codes: H04L 43/10 Active monitoring, e.g. heartbeat, ping or trace-route
• CPC Class Codes: H04L 67/1034 Reaction to server failures by a load balancer
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/141 Setup of application sessions admission control or resource allocation in data switching networks H04L47/70

Abstract

The present application discloses a method and device for establishing communication connection. An embodiment of the method includes: selecting a predetermined number of servers from a server cluster to form a backup server cluster, the server cluster including at least one server adapted to implement a given service; obtaining communication information of each backup server in the backup server cluster, and selecting a backup server from the backup server cluster as a master server based on the communication information of the backup server; and sending the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment. The embodiment solves a problem of reliability raised when main server abnormally quits or restarts during the operation of a system.

Claims

1. A method for establishing communication connection, the method comprising:

selecting a predetermined number of servers from a server cluster to form a backup server cluster, the server cluster including at least one server adapted to implement a given service;

obtaining communication information of each backup server in the backup server cluster, and selecting a backup server from the backup server cluster as a master server based on the communication information of the backup server; and

sending the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment.

2. The method according to claim 1, wherein the communication information of the backup server includes a serial number of the backup server;

and

the selecting a backup server from the backup server cluster as a master server based on the communication information of the backup server comprises;

selecting the backup server as the master server from the backup server cluster based on a magnitude of a serial number of each of the backup servers in the backup server cluster.

3. The method according to claim 1, further comprising:

obtaining the communication information of the master server;

judging whether the master server is normal based on the communication information of the master server; and

removing the master server from the backup server cluster in response to the master server being abnormal, initializing at least one server from the server cluster as a new backup server, adding the new backup server to the backup server cluster so that the number of the backup servers in the backup server cluster equals the predetermined number, and selecting a backup server from the backup server cluster as the master server based on the communication information of the backup server.

4. The method according to claim 3, wherein the communication information of the master server comprises heartbeat information;

and

the judging whether the master server is normal based on the communication information of the master server comprises;

sending a detection instruction of the heartbeat information to the master server; and

determining whether the master server is normal based on whether a heartbeat package is returned by the master server within a predetermined period.

5. The method according to claim 4, wherein the selecting a backup server from the backup server cluster as a master server comprises:

obtaining backup data from a preset data backup region, the backup data including master server backup data and controlled equipment backup data; and

writing the master server backup data into the master server.

6. The method according to claim 5, wherein the sending the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment comprises:

starting the controlled equipment controlled by the server cluster;

obtaining pre-stored master server registration information stored in the controlled equipment;

extracting registration information of the master server from a preset information registration table, and matching the registration information of the master server with the pre-stored master server registration information to generate a matching result; and

establishing the communication connection between the master server and the controlled equipment based on the matching result.

7. The method according to claim 6, further comprising:

sending a detection instruction of the heartbeat information to the controlled equipment;

determining whether the controlled equipment is normal based on whether a heartbeat package is returned by the controlled equipment within the predetermined period;

restarting the controlled equipment if the controlled equipment is abnormal, and writing the controlled equipment backup data into the restarted controlled equipment; and

writing the registration information of the master server into the pre-stored master server registration information of the controlled equipment.

8. A device for establishing communication connection, the device comprising:

a forming unit configured to select a predetermined number of servers from a server cluster to form a backup server cluster, the server cluster including at least one server adapted to implement a given service;

a selecting unit configured to obtain communication information of each backup server in the backup server cluster, and select a backup server from the backup server cluster as a master server based on the communication information of the backup server; and

a communication connection establishing unit configured to send the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment.

9. The device according to claim 8, wherein the communication information of the backup server includes a serial number of the backup server;

and the selecting unit is further configured to;

select the backup server as the master server from the backup server cluster based on a magnitude of a serial number of each of the backup servers in the backup server cluster.

10. The device according to claim 8, further comprising a server abnormity processing unit configured to:

obtain the communication information of the master server;

judge whether the master server is normal based on the communication information of the master server; and

remove the master server from the backup server cluster in response to the master server being abnormal, initialize at least one server from the server cluster as a new backup server, add the new backup server to the backup server cluster so that the number of the backup servers in the backup server cluster equals the predetermined number, and select a backup server from the backup server cluster as the master server based on the communication information of the backup server.

11. The device according to claim 10, wherein the communication information of the master server includes heartbeat information;

and the server abnormity processing unit is further configured to;

send a detection instruction of the heartbeat information to the master server; and

determine whether the master server is normal based on whether a heartbeat package is returned by the master server within a predetermined period.

12. The device according to claim 11, wherein the selecting unit is further configured to:

obtain backup data from a preset data backup region, the backup data including master server backup data and controlled equipment backup data; and

write the master server backup data into the master server.

13. The device according to claim 12, wherein the communication connection establishing unit is further configured to:

start the controlled equipment controlled by the server cluster;

obtain pre-stored master server registration information stored in the controlled equipment;

extract registration information of the master server from a preset information registration table, and match the registration information of the master server with the pre-stored master server registration information to generate a matching result; and

establish the communication connection between the master server and the controlled equipment based on the matching result.

14. The device according to claim 13, further comprising a controlled equipment abnormity processing unit configured to:

send a detection instruction of the heartbeat information to the controlled equipment;

determine whether the controlled equipment is normal based on whether a heartbeat package is returned by the controlled equipment within the predetermined period;

restart the controlled equipment if the controlled equipment is abnormal, and write the controlled equipment backup data into the restarted controlled equipment; and

write the registration information of the master server into the pre-stored master server registration information of the controlled equipment.

15. A non-transitory computer storage medium storing a computer program, which when executed by a processor, cause the processor to perform operations, the operations comprising:

selecting a predetermined number of servers from a server cluster to form a backup server cluster, the server cluster including at least one server adapted to implement a given service;

obtaining communication information of each backup server in the backup server cluster, and selecting a backup server from the backup server cluster as a master server based on the communication information of the backup server; and

sending the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment.

16. The non-transitory computer storage medium according to claim 15, wherein the communication information of the backup server includes a serial number of the backup server;

and

the selecting a backup server from the backup server cluster as a master server based on the communication information of the backup server comprises;

selecting the backup server as the master server from the backup server cluster based on a magnitude of a serial number of each of the backup servers in the backup server cluster.

17. The non-transitory computer storage medium according to claim 15, wherein the operations further comprises:

obtaining the communication information of the master server;

judging whether the master server is normal based on the communication information of the master server; and

removing the master server from the backup server cluster in response to the master server being abnormal, initializing at least one server from the server cluster as a new backup server, adding the new backup server to the backup server cluster so that the number of the backup servers in the backup server cluster equals the predetermined number, and selecting a backup server from the backup server cluster as the master server based on the communication information of the backup server.

18. The non-transitory computer storage medium according to claim 17, wherein the communication information of the master server comprises heartbeat information;

and

the judging whether the master server is normal based on the communication information of the master server comprises;

sending a detection instruction of the heartbeat information to the master server; and

determining whether the master server is normal based on whether a heartbeat package is returned by the master server within a predetermined period.

19. The non-transitory computer storage medium according to claim 18, wherein the selecting a backup server from the backup server cluster as a master server comprises:

obtaining backup data from a preset data backup region, the backup data including master server backup data and controlled equipment backup data; and

writing the master server backup data into the master server.

20. The non-transitory computer storage medium according to claim 19, wherein the sending the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment comprises:

starting the controlled equipment controlled by the server cluster;

obtaining pre-stored master server registration information stored in the controlled equipment;

extracting registration information of the master server from a preset information registration table, and matching the registration information of the master server with the pre-stored master server registration information to generate a matching result; and

establishing the communication connection between the master server and the controlled equipment based on the matching result.