Here is a 200-250 word comparison of Project A (StarRocks) and Project B (Vitess) for senior engineers: A comparison of StarRocks and Vitess reveals distinct profiles in terms of momentum, community size, and use cases. StarRocks, with 11,550 stars and a recent surge of 104 stars in the last 30 days, indicates a growing but somewhat niche community, likely attracting those seeking high-performance query capabilities for data lakehouse analytics. Its use cases appear focused on real-time, multi-dimensional, and ad-hoc query scenarios, catering to analytics-intensive workloads. In contrast, Vitess, boasting 20,845 stars and 158 new stars in the last 30 days, demonstrates stronger community engagement and a broader user base. This suggests Vitess is widely adopted for its core functionality: horizontally scaling MySQL databases. The community size and momentum imply Vitess is favored for production environments requiring scalable relational database management, potentially in e-commerce, SaaS, or any application demanding high MySQL throughput. While StarRocks shines in sub-second analytics, Vitess excels in database clustering for MySQL workloads. StarRocks' recent star gain, though notable, does not yet approach Vitess' community scale or growth rate, reflecting differing problem domains and user demographics.