Yishang Yujie has 6 large-scale promotional activities every year, with 618 and the Double 11 as the most important, which is crucial to sales performance. The stability of the system is the cornerstone of promotional activities. Alibaba Cloud CRE team, together with ISV, production research and business lines, has tailored a series of plans for Yishang Yujie, such as production environment pressure testing, emergency plan drilling, and peak escort, according to the system characteristics of single volume forecasting and e-commerce business midrange, and completed more than 20 times of pressure testing and escort work for large and small promotions, ensuring that the system can smoothly pass the business peak under the impact of large orders, It becomes the ballast of Dajin.

New business forms and new functions have brought new challenges to the system. The core links of Yishang Yujie have also been upgraded iteratively with the help of Alibaba Cloud CRE team; The database is upgraded from DRDS to PolarDB-X 2.0, which improves the performance and stability synchronously. At the same time, it also simplifies the DTS synchronization link, further saving costs for Yishang Yujie; The ES cluster is split by business and the read/write traffic is separated, eliminating the bottleneck of the system's promotion calculation; Data archiving is migrated from PolarDB to OSS, reducing the cost by more than 70%. The reasonable system architecture evolution planning enables Yishang Yujie to have confidence in future business growth.

Due to the complexity of e-commerce business itself, the observability of the system has always been a pain point for Yishang Yujie. Based on years of escort experience and business characteristics, Alibaba Cloud CRE team has helped Yishang Yujie establish a digital operation platform integrating resources, links and services, which can observe the system performance in all aspects of order processing in real time; It has solved the pain point that ESG has not been able to perceive the business status in real time for many years, especially during the promotion, provided strong support for the decision-making and guarantee of the promotion, and raised the digital operation capability of ESG to a new height.