Systems and methods for automatic repair and replacement of networked machines

• US 7,302,608 B1
• Filed: 03/31/2004
• Issued: 11/27/2007
• Est. Priority Date: 03/31/2004
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Acharya, Anurag, Popescu, Catalin T., Cocosel, Bogdan, Sim, Peng-Toh, Jhong, Eugene L.
• Primary Examiner(s): Baderman; Scott
• Assistant Examiner(s): Contino; Paul F.
• Application Number:
  US10/816,594
• Time in Patent Office: 1,336 Days
• Field of Search: 714/7, 714/13, 714/44
• US Class Current: 714/13
• CPC Class Codes: G06F 11/2023 Failover techniques
• CPC Class Codes: G06F 11/2041 with more than one idle spare processing component

Abstract

Systems and methods for automatic repair and replacement of computing machines are disclosed. The system may generally include a database including configuration information for the available replacement machines and a failed machine, a machine assignment module to assign a replacement machine based on a comparison of the configuration information for the failed machine and the available replacement machines, and a configuration module for generating configuration data for replacement of the failed machine with the replacement machine in the computer network. The machine assignment module may compare certain configuration parameters such as processor speed, disk drive size, and/or amount of RAM, between the failed machine and the available replacement machines. A replacement module may copy data from another copy of the failed machine in the computer network into the replacement machine. An installation module may install the configuration data in, e.g., dependent machines, and restart the dependent machines.

Claims

1. A system for automatic replacement of machines in a computer network, comprising:

a database of configuration information, the database including configuration information for a plurality of available replacement machines and for a failed machine;

a machine assignment device in communication with the database and configured to identify and assign one of the plurality of available replacement machines as a replacement machine for the failed machine based on a comparison of the configuration information for the failed machine to those for the plurality of available replacement machines; and

a configuration device in communication with the machine assignment device for generating configuration data for replacement of the failed machine with the replacement machine in the computer network.

2. The system of claim 1, wherein the database of configuration information includes configuration information for active machines in the computer network.

3. The system of claim 1, further comprising:

an installation device in communication with the configuration device and configured to cause the configuration data generated by the configuration device to take effect in at least some of the machines other than the failed machine in the computer network.

4. The system of claim 3, wherein the installation device is further configured to cause the configuration data to take effect in machines in the computer network that are dependent upon the failed machine.

5. The system of claim 1, wherein the machine assignment device is further configured to compare a predetermined set of configuration parameters of the failed machine to those of the available replacement machines.

6. The system of claim 5, wherein the predetermined set of configuration parameters includes at least one of processor speed, disk drive size, and amount of random access memory (RAM).

7. The system of claim 1, further comprising:

a detection device configured to detect fault in at least one of a software component and a hardware component in the machines in the computer network, wherein upon detection of the fault in the failed machine, the machine assignment device identifies and assigns the replacement machine.

8. The system of claim 7, further comprising:

a repair device configured to attempt to repair the fault identified by the detection device in the failed machine.

9. The system of claim 1, further comprising:

a replacement device configured to copy data from a copy of the failed machine in the computer network into the replacement machine identified by the machine assignment device.

10. The system of claim 9, wherein the failed machine and the copy of the failed machine in the computer network include components selected from the group consisting of a front end server, a load balancer, an index server, and a cache server.

11. A method for automatic replacement of machines in a computer network, comprising:

identifying a failed machine in the computer network;

performing a lookup in a database of configuration information containing configuration information for a plurality of available replacement machines and for the failed machine;

identifying and assigning a replacement machine selected from the available replacement machines, the identifying and assignment being based on a comparison of the configuration information for the failed machine to those of the plurality of available replacement machines; and

generating configuration data for replacement of the failed machine with the replacement machine in the computer network.

12. The method of claim 11, wherein the database of configuration information includes configuration information for active machines in the computer network.

13. The method of claim 11, further comprising:

causing the configuration data generated to take effect in at least some of the machines other than the failed machine in the computer network.

14. The method of claim 13, wherein the causing includes causing the configuration data to take effect in machines in the computer network that are dependent upon the failed machine.

15. The method of claim 11, wherein the identifying and assignment includes comparing a predetermined set of configuration parameters of the failed machine to those of the available replacement machines.

16. The method of claim 15, wherein the predetermined set of configuration parameters includes at least one of processor speed, disk drive size, and amount of random access memory (RAM).

17. The method of claim 11, wherein the identifying includes detecting fault in at least one of a software component and a hardware component in the machines in the computer network.

18. The method of claim 17, further comprising:

attempting to repair the identified fault in the failed machine, wherein upon unsuccessful repair of the failed machine, the performing, the identifying and assigning, and the generating are performed.

19. The method of claim 11, wherein the unsuccessful repair is after a predetermined maximum number of performing the attempting to repair.

20. The method of claim 11, further comprising:

copying data from a copy of the failed machine in the computer network into the replacement machine.

21. The method of claim 20, wherein the failed machine and the copy of the failed machine in the computer network include components selected from the group consisting of a front end server, a load balancer, an index server, and a cache server.

22. A computer program product embodied on a computer-readable storage medium, the computer program product including instructions which when executed by a computer system are operable to cause the computer system to perform acts comprising:

identifying a failed machine in the computer network;

performing a lookup in a database of configuration information containing configuration information for a plurality of available replacement machines and for the failed machine;

identifying and assigning a replacement machine selected from the available replacement machines, the identifying and assignment being based on a comparison of the configuration information for the failed machine to those of the plurality of available replacement machines; and

generating configuration data for replacement of the failed machine with the replacement machine in the computer network.

23. The computer program product of claim 22, wherein the database of configuration information includes configuration information for active machines in the computer network.

24. The computer program product of claim 22, further including instructions operable to cause the computer system to perform acts comprising:

causing the configuration data generated to take effect in at least some of the machines other than the failed machine in the computer network.

25. The computer program product of claim 24, wherein the causing includes causing the configuration data to take effect in machines in the computer network that are dependent upon the failed machine.

26. The computer program product of claim 22, wherein the identifying and assignment includes comparing a predetermined set of configuration parameters of the failed machine to those of the available replacement machines.

27. The computer program product of claim 26, wherein the predetermined set of configuration parameters includes at least one of processor speed, disk drive size, and amount of random access memory (RAM).

28. The computer program product of claim 22, wherein the identifying includes detecting fault in at least one of a software component and a hardware component in the machines in the computer network.

29. The computer program product of claim 28, further including instructions operable to cause the computer system to perform acts comprising:

attempting to repair the identified fault in the failed machine, wherein upon unsuccessful repair of the failed machine, the performing, the identifying and assigning, and the generating are performed.

30. The computer program product of claim 29, wherein the unsuccessful repair is after a predetermined maximum number of performing the attempting to repair.

31. The computer program product of claim 22, further including instructions operable to cause the computer system to perform acts comprising:

copying data from a copy of the failed machine in the computer network into the replacement machine.

32. The computer program product of claim 31, wherein the failed machine and the copy of the failed machine in the computer network include components selected from the group consisting of a front end server, a load balancer, an index server, and a cache server.