Real-time data synchronization scheme based on Flink SQL CDC

Real-time data synchronization scheme based on Flink SQL CDC

This article summarizes the video sharing of Alibaba Flink technical experts, mainly around the following 4 aspects:

1. Traditional data synchronization solution
2. Data synchronization scheme based on Flink SQL CDC
3. More application scenarios of Flink SQL CDC
4. Flink SQL CDC's future plan

At present, individuals are mainly studying CDC-based real-time data synchronization solutions. Follow-up will focus on this topic, research and summarize a series of themed articles.

1. Traditional data synchronization solution

Typical problems:

the main problems faced:

• Multi-write business logic is complicated
• Increase in delay
• Data consistency issues

2. CDC data synchronization program

Optimization:

• C