Data consistency in a large-scale runtime infrastructure

In order to support large-scale distributed simulation, we have developed a RTI called StarLink+ with particular architecture which is compliant with IEEE 1516. StarLink+ is composed of a Central RTI server and multiple Local RTI servers. Each Local RTI server manages multiple federates. Data consistency has great influence on RTI's performance and scale. In StarLink+, only a small portion of data must be globally consistent for all Local RTI servers. However, a great amount of data is not consistent for different Local RTI servers. This paper focuses on the research of data consistency about a variety of data in StarLink+. On the one hand, we introduce the fully consistent data such as object name designation and handle assignment., on the other hand, we also study the partly consistent data Such as publication and subscription, ownership transfer, and time management.