Systems and methods for migratable services
First Claim
1. A system for migrating a migratable service in a server cluster, comprising:
- a server cluster comprising at least two servers;
a migration target comprising a list of servers in the server cluster capable of hosting multiple migratable services, such that related migratable services can be moved together by a migration manager, wherein only one instance of each migratable service is active in the server cluster at any time; and
the migration manager capable of moving a migratable service between servers in the server cluster, the migration manager ensuring that only one active instance of the migratable service exists in the server cluster at any time;
a lease manager adapted to assign a lease period to a server in the server cluster, the lease period determining how long the server will host an instance of the migratable service;
wherein the lease manager is further capable of renewing a lease period for a server in the server cluster so the service will remain active; and
wherein an active instance of a migratable service is deactivated once the lease period expires.
1 Assignment
0 Petitions
Accused Products
Abstract
A migration framework provides for the migration of services in a cluster. A migratable target contains a list of servers in the cluster capable of hosting a migratable service. A migration manager can migrate the service between servers in the migratable target, and can activate an instance of the service on the selected host server. The migration manager ensures that only one active instance of the service exists in the cluster. A service stub can serve a user request on servers in the migration target, such as by order of preference, until the user request is served on the server hosting the active instance. A lease manager can assign a lease period to determine how long a server hosts an active instance.
This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.
132 Citations
48 Claims
-
1. A system for migrating a migratable service in a server cluster, comprising:
-
a server cluster comprising at least two servers;
a migration target comprising a list of servers in the server cluster capable of hosting multiple migratable services, such that related migratable services can be moved together by a migration manager, wherein only one instance of each migratable service is active in the server cluster at any time; andthe migration manager capable of moving a migratable service between servers in the server cluster, the migration manager ensuring that only one active instance of the migratable service exists in the server cluster at any time; a lease manager adapted to assign a lease period to a server in the server cluster, the lease period determining how long the server will host an instance of the migratable service; wherein the lease manager is further capable of renewing a lease period for a server in the server cluster so the service will remain active; and wherein an active instance of a migratable service is deactivated once the lease period expires. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A computer readable storage medium containing code to migrate a migratable service in a server cluster, comprising:
-
a migration target comprising a list of servers in a server cluster capable of hosting multiple migratable services, such that related migratable services can be moved together by a migration manager, wherein only one instance of each migratable service is active in the server cluster at any time; and code for the migration manager using the migratable target and capable of moving a migratable service between servers in the server cluster, the migration manager ensuring that only one active instance of the migratable service exists in the server cluster at any time; a lease manager adapted to assign a lease period to a server in the server cluster, the lease period determining how long the server will host an instance of the migratable service; wherein the lease manager is further capable of renewing a lease period for a server in the server cluster so the service will remain active; and wherein an active instance of a migratable service is deactivated once the lease period expires. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A computer readable storage medium containing code to migrate a migratable service in a server cluster, comprising:
-
a migration target comprising a list of servers in a server cluster capable of hosting multiple migratable services including a migratable JMS service, wherein only one instance of each migratable service including the migratable JMS service is active in the server cluster at any time and wherein related migratable services can be moved together by a migration manager; and code for the migration manager using the migratable target and capable of moving the migratable service between servers in the server cluster, the migration manager ensuring that only one active instance of the migratable JMS service exists in the server cluster at any time; a lease manager adapted to assign a lease period to a server in the server cluster, the lease period determining how long the server will host an instance of the migratable JMS service; wherein the lease manager is further capable of renewing a lease period for a server in the server cluster so the JMS service will remain active; and wherein an active instance of a migratable JMS service is deactivated once the lease period expires. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
-
38. A computer readable storage medium containing code to migrate a migratable service in a server cluster, comprising:
-
a migration target comprising a list of servers in a server cluster capable of hosting multiple migratable services including a migratable transaction recovery service, wherein only one instance of each migratable service including the migratable transaction recovery service is active in the server cluster at any time and wherein related migratable services can be moved together by a migration manager; and code for the migration manager using the migratable target and capable of moving the migratable service between servers in the server cluster, the migration manager ensuring that only one active instance of the migratable transaction recovery service exists in the server cluster at any time; a lease manager adapted to assign a lease period to a server in the server cluster, the lease period determining how long the server will host an instance of the migratable transaction recovery service; wherein the lease manager is further capable of renewing a lease period for a server in the server cluster so the transaction recovery service will remain active; and wherein an active instance of a migratable transaction recovery service is deactivated once the lease period expires. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
-
Specification