A Worst-Case Activity Analysis of SOAP Messages in Real-time SOA

摘要

In SOA environment, SOAP message of a service client uses a set of the WS-Atomic Real-time transaction of service provider-system that puts across the network. We has been analyzed the Real-time worst activity for SOAP Message by transformation of equation in the existing real-time system To calculate the worst-case response time, the required time of network, the processing time of WS-Atomic real-time transaction and the executed time before abort were included. To secure serialization, 2PL is used. We used differed preemption priority with condition to minimize the waste of DB-access, that is, the remained execution time of low priority and the laxity time of high priority are compared, and if laxity time is a bigger, the execution of low priority is continued without abortion as possible. And we are used EDZL/n-2 Algorithm to process an urgent message on online, to minimize the failure rate of SOAP messages having high priority.