Client/server transaction processing system with automatic distributed co-ordinator set-up into a linear chain for use of linear commit optimisation

摘要

A computing apparatus (e.g Process A) for use in a client/server transaction processing system has: means 31 for sending a transactional requests to a server (e.g. Process C) to request that the server become involved in processing a distributed transaction, the request including an indication of a computing apparatus (e.g process B) to which the server should direct a registration request to request that a resource 39 local to the server be registered in the transaction; means 31 for receiving a reply 12 to the transactional request from the server, the reply including an indication of an apparatus (e.g. Process C) which is currently the last in a linear chain of apparatuses that have sent out registration requests in response to receiving transactional requests; and means 35 for keeping track of the current apparatus which is the last in the linear chain based on replies received by the receiving means; wherein the indication sent by the sending means, along with the transactional request, is an indication of the current apparatus which is the last in the linear chain, based on the keeping means.