Interception proxy-based approach for in-service software upgrade

摘要

A system for an in-service software upgrade is disclosed. The system consists of a processor, a first version of a software process, a second version of the software process, and a proxy software process. When executed by the processor, the proxy software process can intercept a message intended for the first version and direct the message to either the first version or the second version based on the status of a transaction associated with the message.