1. A method for supporting transaction processing in a transactional environment, comprising: routing a request to a transactional server, wherein the transactional server is connected to a resource manager (RM) instance; assigning an affinity context to the transactional server, wherein the affinity context indicates the RM instance that the transactional server is associated with; and routing one or more subsequent requests that are related to the request to the transactional server based on the affinity context.