OBJECT MIGRATION BETWEEN CLOUD ENVIRONMENTS

• US 20140344395A1
• Filed: 05/20/2013
• Published: 11/20/2014
• Est. Priority Date: 05/20/2013
• Status: Active Grant

• Current Assignee: Empire Technology Development LLC (Allied Inventors Management, LLC)
• Original Assignee: Empire Technology Development LLC (Allied Inventors Management, LLC)
• Inventors: Alexander, Frank
• Granted Patent: US 9,648,134 B2
• Time in Patent Office: Days
• US Class Current: 709/217
• CPC Class Codes: G06F 9/4856 resumption being on a different machine, e.g. task migration, virtual machine migration G06F9/5088 takes precedence
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416

Abstract

Technologies are generally described for a system for migrating an application between cloud environments such as datacenters. In some examples, an application hosted at a source cloud may be moved from the source cloud to the destination cloud by migrating one or more objects at a time from the source to the destination cloud while maintaining the application up and running by intercepting and redirecting requests to a source or destination depending on where related objects reside. Example objects may be data structures, attributes and associated behaviors that encapsulate the application. Migration of the objects may be facilitated by enumerating and serializing the objects, and loading subsets of one or more serialized objects at the destination datacenter. An object migration module may keep track of objects in transit, and may direct requests for transferred objects to the destination cloud for maintaining continued access to the application.

Claims

1. A method to migrate an application between cloud computing environments, the method comprising:

receiving a request to migrate an application from a source cloud to a destination cloud;

identifying one or more objects associated with the application to be migrated;

enumerating the one or more objects employing a source interface executed at the source cloud;

designating at least one object to be migrated to the destination cloud;

requesting a serialization of the object to be migrated from the source interface;

marking the serialized object as in-transit while the serialized object is in process of being migrated from the source cloud to the destination cloud;

intercepting a request for access to the serialized object at an application programming interface (API) published by an object migration manager while the serialized object is in the process of being migrated from the source cloud to the destination cloud;

redirecting the intercepted request from the object migration manager API to one of;

the source cloud and/or the destination cloud; and

loading the serialized object at the destination cloud.

6. The method according to claim 1, wherein identifying the one or more objects associated with the application comprises:

loading an access pattern map associated with the application identifying the one or more objects of the application and one of an access method interface or an access call for each of the one or more objects.

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

maintaining a directory of where the objects associated with the application reside during the migration, wherein each object resides at one of;

the source cloud, the destination cloud, or in-transit between the source cloud and the destination cloud.

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

redirecting another request based on a current location of the serialized object.

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

submitting a call to a destination interface at the destination cloud to hand over a migrating object.

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

marking the object as migrated when the object is loaded at the destination cloud; and

deleting the migrated object from the source cloud.

13. The method according to claim 12, further comprising:

marking the migration of the application as complete when all objects associated with the application have been successfully migrated to the destination cloud.

14. The method according to claim 13, further comprising:

after migration of the application is complete, redirecting a request directed to the application to the destination cloud by updating a domain name system to point to the destination cloud.

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

in response to detecting a collision between a request leading to a modification of an existing object and the existing object'"'"'s migration at a same time, performing one of;

backing off the migration, allowing the request to proceed, and resuming the migration;

holding the request for a predefined period until the migration of the existing object completes;

or

declining the request.

2-5. -5. (canceled)

8-9. -9. (canceled)

16. A computing device operable to migrate an application between cloud computing environments, the computing device comprising:

a memory configured to store instructions; and

a processing unit configured to execute an object migration module in conjunction with the instructions, wherein the object migration module is configured to;

receive a request to migrate an application from a source cloud to a destination cloud;

identify one or more objects associated with the application to be migrated;

enumerate the one or more objects employing a source interface executed at the source cloud;

designate at least one object to be migrated to the destination cloud;

request a serialization of the object to be migrated from the source interface;

mark the object as in-transit while the object is in process of being migrated from the source cloud to the destination cloud;

intercept a request for access to the object directed to the application at an application programming interface (API) published by the object migration module while the object is in the process of being migrated from the source cloud to the destination cloud;

redirect the intercepted request from the object migration manager API to one of;

the source cloud and/or the destination cloud; and

load the serialized object at the destination cloud.

17. The computing device according to claim 16, wherein the object migration module is further configured to:

migrate one object at a time until objects associated with the application are migrated from the source cloud to the destination cloud.

18. The computing device according to claim 16, wherein the object migration module is further configured to:

migrate two or more interconnected objects at a time until objects associated with the application are migrated from the source cloud to the destination cloud, wherein the two or more objects are interconnected if the objects refer to each other.

19. The computing device according to claim 16, wherein the object migration module is further configured to:

migrate the one or more objects associated with the application according to a prioritized order of the objects, wherein the objects are prioritized based on a write-access rate associated with each of the objects.

20. The computing device according to claim 16, wherein the object migration module is further configured to:

migrate the one or more objects during an identified period of reduced activity of the application.

31. The computing device according to claim 16, wherein the object migration module is hosted at the source cloud.

32. The computing device according to claim 16, wherein the object migration module is hosted at the destination cloud.

33. The computing device according to claim 16, wherein the object migration module is hosted at a third party migration entity.

21-30. -30. (canceled)

34. A computer readable medium with instructions stored thereon, which when executed on one or more computing devices executes a method to migrate an application between cloud computing environments, wherein the method includes:

receiving a request to migrate an application from a source cloud to a destination cloud;

identifying one or more objects associated with the application to be migrated;

enumerating the one or more objects employing a source interface executed at the source cloud;

designating at least one object to be migrated to the destination cloud;

requesting a serialization of the object to be migrated from the source interface;

marking the serialized object as in-transit while the serialized object is in process of being migrated from the source cloud to the destination cloud;

intercepting a request for access to the serialized object at an application programming interface (API) published by an object migration manager while the serialized object is in process of being migrated from the source cloud to the destination cloud;

redirecting the intercepted request from the object migration manager API to one of;

the source cloud and/or the destination cloud; and

loading the serialized object at the destination cloud.

41. The computer readable medium according to claim 34, wherein the object is serialized employing one of an extensible markup language (XML) serialization schema, a Java Script Object Notation (JSON) schema, or an ordered graph data language (OGDL) schema.

43. The computer readable medium according to claim 34, wherein the method further comprises:

redirecting another request based on a current location of the serialized object.

44. The computer readable medium according to claim 34, wherein the method further comprises:

submitting a call to a destination interface at the destination cloud to hand over a migrating object.

45. The computer readable medium according to claim 34, wherein the method further comprises:

marking the object as migrated when the object is loaded at the destination cloud; and

deleting the migrated object from the source cloud.

48. The computer readable medium according to claim 34, wherein the method further comprises:

in response to detecting a collision between a request leading to a modification of an existing object and the existing object'"'"'s migration at a same time, performing one of;

backing off the migration, allowing the request to proceed, and resuming the migration;

holding the request for a predefined period until the migration of the existing object completes;

or

declining the request.

35-40. -40. (canceled)

42. (canceled)

46-47. -47. (canceled)