System and method for providing singleton services in a cluster

Details System and method for providing singleton services in a cluster System and method for providing singleton services in a cluster

2006-04-03

2008-11-04

Puente, Emerson C (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S004110, C714S010000, C714S012000, C714S013000, C709S223000, C709S224000

Reexamination Certificate

active

07447940

ABSTRACT:
A system and method for providing singleton services in a cluster of servers, where one server is designated as a cluster master, other servers are designated as migratable servers and where all servers in the cluster heartbeat their liveness information against a database. The cluster master monitors the heartbeats of all migratable servers. Upon failure of a migratable server's heartbeat, the cluster master first attempts to restart the migratable server on the same machine and if that does not succeed, the cluster master migrates the migratable server to a different machine in the cluster. In accordance with an embodiment, all migratable servers monitor the heartbeats of the cluster master. Upon failure of the cluster master's heartbeating, one migratable server takes over the role of being cluster master.

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Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration, Dated Oct. 18, 2006 in re PCT Application No. PCT/US06/12412.

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