Unverified50% confidenceSolutionExact time

There are two implementation paths for dual-write: application-layer dual-write and CDC-based dual-write.

1

Sources

50%

Confidence

Long-term

Relevance

9/8/2026

First Seen

Sources

How Vercel Migrated Its Core Database with Zero Downtime: A Deep Dive

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UnverifiedThe mainstream implementation approaches of CDC include three types: log-based, trigger-based, and polling-based73% similar

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