System and method for supporting patching in a multitenant application server environment

A method for supporting patching in a computing environment, comprising:

• executing, on one or more computers, a plurality of managed server instances that operate as part of a domain, wherein the computing environment further comprises one or more partitions within the domain, and wherein each partition of the one or more partitions is enabled to be associated with a tenant of the computing environment;
• performing a patching process that updates the plurality of managed server instances, including, during rollout of a patch to the plurality of managed server instances,
• upon receiving a request associated with a particular session, attempting to load the particular session at a first managed server instance of the plurality of managed server instances, to process the request, and
• if the first managed server instance of the plurality of managed server instances cannot load the particular session, then
• providing an indication of other managed server instances of the plurality of managed server instances that can load the particular session, and
• directing the particular session to be loaded at a second managed server instance of the plurality of managed server instances, to process the request.

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 a method comprising:

• executing, on one or more computers, a plurality of managed server instances that operate as part of a domain, wherein the computing environment further comprises one or more partitions within the domain, and wherein each partition of the one or more partitions is enabled to be associated with a tenant of the computing environment;
• performing a patching process that updates the plurality of managed server instances, including, during rollout of a patch to the plurality of managed server instances,
• upon receiving a request associated with a particular session, attempting to load the particular session at a first managed server instance of the plurality of managed server instances, to process the request, and
• if the first managed server instance of the plurality of managed server instances cannot load the particular session, then
• providing an indication of other managed server instances of the plurality of managed server instances that can load the particular session, and
• directing the particular session to be loaded at a second managed server instance of the plurality of managed server instances, to process the request.