Abstract: In accordance with an embodiment, described herein is a system and method for providing service resources for consumption by an application deployed to a service in a cloud environment. A service definition package (SDP) for the service can specify a dependency on a provider, and include association rules that define actions to be taken with regard to a runtime of the provider. When the service is provisioned, a service resource type which is derived from a provider SDP can be associated with the service. As a result of the association, a service resource can be automatically created from the service resource type in accordance with the association rules, to provide resources for consumption by the application. In accordance with an embodiment, the provider SDP can include a plurality of feature sets associated with different sets of configurable properties, which allows different provider types or service resource types to be created.

Abstract: A method, system, and medium are disclosed for performing transparent failover in a cluster server system. The cluster includes a plurality of servers. In servicing a client request, a primary server replicates session data for the client into memory space of one or more backup servers. The primary server sends a response to the client, wherein the response includes an indication of the one or more backup servers. When the client sends a subsequent request, it includes an indication of the backup servers. If the primary server is unavailable, the cluster determines a recovery server from among the backup servers indicated by the request. The chosen recovery server would then service the request.

Abstract: A system and method for providing service definition packages for use with a cloud computing environment. In accordance with an embodiment, a cloud platform enables provisioning of enterprise software applications (e.g., Fusion Middleware applications) within a cloud environment. In an embodiment, enterprise applications can be packaged as service definition packages (SDP). Each SDP can include an application binary component, a metadata defining the application's service characteristics and requirements, and a plugin that enables the SDP to be installed into the cloud platform. The SDP can also include a virtual assembly that defines a topology and configuration for a set of virtual appliances. The application, as defined by its SDP, can be instantiated as one or more services that are then accessible by other (e.g., customer) applications within the cloud environment.

Abstract: A method, system, and medium are disclosed for performing transparent failover in a cluster server system. The cluster includes a plurality of servers. In servicing a client request, a primary server replicates session data for the client into memory space of one or more backup servers. The primary server sends a response to the client, wherein the response includes an indication of the one or more backup servers. When the client sends a subsequent request, it includes an indication of the backup servers. If the primary server is unavailable, the cluster determines a recovery server from among the backup servers indicated by the request. The chosen recovery server would then service the request.