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 a migratable service, wherein only one instance of the migratable service is active in the server cluster at any time; and
a 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.
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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.
50 Citations
64 Claims
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1. A system for migrating a migratable service in a server cluster, comprising:
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a server cluster comprising at least two servers;
a migration target comprising a list of servers in the server cluster capable of hosting a migratable service, wherein only one instance of the migratable service is active in the server cluster at any time; anda 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A computer readable storage medium containing code to migrate a migratable service in a server cluster, comprising:
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a migration target comprising a list of servers in a server cluster capable of hosting a migratable service, wherein only one instance of the migratable service is active in the server cluster at any time; and code for a 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. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A computer readable storage medium containing code to migrate a migratable service in a server cluster, comprising:
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a migration target comprising a list of servers in a server cluster capable of hosting a migratable JMS service, wherein only one instance of the migratable JMS service is active in the server cluster at any time; and code for a 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. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A computer readable storage medium containing code to migrate a migratable service in a server cluster, comprising:
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a migration target comprising a list of servers in a server cluster capable of hosting a migratable transaction recovery service, wherein only one instance of the migratable transaction recovery service is active in the server cluster at any time; and code for a 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. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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Specification