Methods, media and systems for managing a distributed application running in a plurality of digital processing devices

• US 20070244962A1
• Filed: 10/20/2006
• Published: 10/18/2007
• Est. Priority Date: 10/20/2005
• Status: Active Grant

• Current Assignee: Trustees Of Columbia University In The City Of New York (Columbia University)
• Original Assignee: Trustees Of Columbia University In The City Of New York (Columbia University)
• Inventors: Laadan, Oren, Nieh, Jason, Phung, Dan
• Granted Patent: US 8,280,944 B2
• Time in Patent Office: Days
• US Class Current: 709/201
• CPC Class Codes: G06F 11/1438 Restarting or rejuvenating
• CPC Class Codes: G06F 11/1482 by means of middleware or OS functionality
• CPC Class Codes: G06F 2201/815 Virtual middleware or OS functionality using virtual machines to implement generic software techniques for error detection or fault masking G06F11/1484
• CPC Class Codes: G06F 9/45504 Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

Methods, media and systems for managing a distributed application running in a plurality of digital processing devices are provided. In some embodiments, a method includes running one or more processes associated with the distributed application in virtualized operating system environments on a plurality of digital processing devices, suspending the one or more processes, and saving network state information relating to network connections among the one or more processes. The method further include storing process information relating to the one or more processes, recreating the network connections using the saved network state information, and restarting the one or more processes using the stored process information.

Claims

1. A method for managing a distributed application running in a plurality of digital processing devices, comprising:

running one or more processes associated with the distributed application in virtualized operating system environments in the plurality of digital processing devices;

suspending the one or more processes;

saving network state information relating to network connections among the one or more processes;

recreating the network connections using the saved network state information; and

restarting the one or more processes using the stored process information.

2. The method of claim 1, wherein at least one of the one or more processes is suspended on a first digital processing device and restarted on a second digital processing device.

3. The method of claim 1, wherein information relating to network connections comprises a state of socket parameters.

4. The method of claim 1, wherein the suspending comprises disabling network activity of the one or more processes.

5. The method of claim 4, wherein the suspending comprises disabling network activity of the one or more processes using a network filtering service.

6. The method of claim 1, wherein, for each of the plurality of digital processing devices, storing process information occurs immediately after saving network state information.

7. The method of claim 1, wherein, for each of the plurality of digital processing devices, restarting the one or more processes occurs immediately after recreating the network connections.

8. The method of claim 1, further comprising sending first messages from a first application to the plurality of digital processing devices to initiate the suspending.

9. The method of claim 8, wherein saving network state information comprises sending network state information from the plurality of digital processing devices to the first application.

10. The method of claim 9, further comprising sending second messages from the first application to the plurality of digital processing devices to enable network activity of the one or more processes.

11. A computer-readable medium containing computer-executable instructions that, when executed by a processor, cause the processor to perform a method for managing a distributed application running in a plurality of digital processing devices, comprising:

running one or more processes associated with the distributed application in virtualized operating system environments in the plurality of digital processing devices;

suspending the one or more processes;

saving network state information relating to network connections among the one or more processes;

recreating the network connections using the saved network state information; and

restarting the one or more processes using the stored process information.

12. The computer-readable medium of claim 11, wherein at least one of the one or more processes is suspended on a first digital processing device and restarted on a second digital processing device.

13. The computer-readable medium of claim 11, wherein information relating to network connections comprises a state of socket parameters.

14. The computer-readable medium of claim 11, wherein the suspending comprises disabling network activity of the one or more processes.

15. The computer-readable medium of claim 14, wherein the suspending comprises disabling network activity of the one or more processes using a network filtering service.

16. The computer-readable medium of claim 11, wherein, for each of the plurality of digital processing devices, storing process information occurs immediately after saving network state information.

17. The computer-readable medium of claim 11, wherein, for each of the plurality of digital processing devices, restarting the one or more processes occurs immediately after recreating the network connections.

18. The computer-readable medium of claim 11, wherein the method further comprises sending first messages from a first application to the plurality of digital processing devices to initiate the suspending.

19. The computer-readable medium of claim 18, wherein saving network state information comprises sending network state information from the plurality of digital processing devices to the first application.

20. The computer-readable medium of claim 19, wherein the method further comprises sending second messages from the first application to the plurality of digital processing devices to enable network activity of the one or more processes.

21. A system for managing a distributed application, comprising a plurality of interconnected digital processing devices configured to run one or more processes associated with the distributed application in virtualized operating system environments, suspend the one or more processes, save network state information relating to network connections among the one or more processes, recreat the network connections using the saved network state information, and restart the one or more processes using the stored process information.