Abstract: Traditional database systems were designed based on the hardware environment in 1970s. However, with the era of “Cloud Computing” and “Big Data”, On Line Transaction Processing requires database systems to provide more transaction throughput and better scalability. Meanwhile, the development of Computer hardware, in particular memory and multiple CPU Cores offer new opportunity for database systems evolution. Therefore, researching and designing new distributed database systems becomes more and more crucial. This paper researched on the key techniques and challenges of designing new OLTP Database systems.

Key words: scalability, computer hardware, transaction processing, determinism