Patent ID: 11880679
Assignee: ORACLE INTERNATIONAL CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A non-transitory computer readable storage medium, including instructions stored thereon which when read and executed by one or more computers cause the one or more computers to perform the steps comprising:
providing, at the one or more computers, a multitenant application server environment executing thereon;
providing a plurality of deployable resources, which are used within the multitenant application server environment;
providing a plurality of partitions, wherein each partition, of the plurality of partitions, provides a subdivision of a domain that provides a runtime for use by that partition, of the plurality of partitions;
enabling each partition, of the plurality of partitions, to be associated with a tenant of the multitenant application server environment, for use by the tenant of the multitenant application server environment;
associating one or more partitions and resource groups with a tenant of the multitenant application server environment, for use by the tenant of the multitenant application server environment; and
providing one or more high availability features within the multitenant application server environment to apply updates in a controlled manner that maintains the domain's ability to operate without interruption, including:
during a rollout of an update associated with a tenant environment, communicating with a load balancer to control traffic to particular managed server instances, of a plurality of managed server instances, associated with the tenant environment; and
during the rollout of the update associated with the tenant environment, upon receiving a request directed to a session associated with the tenant environment:
attempting to load the session at a first managed server instance, of the plurality of managed server instances, associated with the tenant environment, and
if the first managed server instance, of the plurality of managed server instances, associated with the tenant environment is not available, then directing the request to a second managed server instance, of the plurality of managed server instances, associated with the tenant environment having a replicated session data for the session.