摘要:
In this paper, we address a specific topic within the context of nested transaction implementation, namely, the assignment of identifiers to transactions, We discuss the most important information such identifiers should carry, We do this based on an analysis of the main requirements the components of a general transaction processing system pose on the identifiers, Thereafter, we present some schemes for the assignment of transaction identifiers and discuss their pros and cons with regard to the requirements presented, Finally, we compare one of our schemes to a conventional one by considering the most common operations that are performed with the identifiers, Lastly, we show the performance measurements we have obtained.