How many microservices were involved in data processing?

The number of microservices in data processing depends on the architecture of the specific project. Usually, several microservices are allocated for data processing, for example:

• Data collection service (ingestion)
• Data processing and transformation service
• Data storage service
• Analytics or reporting service

In a typical solution, there can be from 3 to 10 microservices, each responsible for a separate stage of data processing. The exact number is determined by requirements for scalability, fault tolerance, and separation of responsibilities.