How do you feel about VK's initiative to create their own database, and how would you assess its quality and effectiveness?

Creating a custom database is a serious initiative that can provide significant advantages to a company, especially if standard solutions do not meet specific requirements for performance, scalability, or functionality. In the case of VK, considering the enormous volume of data and high load, a custom DBMS can be optimized for specific use cases.

The quality and effectiveness of such a database can be assessed by several criteria:

• Performance: how quickly the database processes requests and withstands load.
• Scalability: the ability to operate effectively as data volume and the number of users grow.
• Reliability and fault tolerance: how the database behaves during failures.
• Support and development: how actively the project is developed and how easily it integrates with other systems.

If VK managed to create a solution that surpasses existing ones in these parameters for its tasks, then the initiative is justified. However, creating and maintaining a custom database requires significant resources and expertise, so such a step is justified only when there are unique requirements.