Level 2: Data · L2.8 Batch, streaming & change data capture
Delivery semantics and exactly-once
Explain at-most, at-least and effectively-once processing.
12 min · Pro
What you take away
- Committing the offset before processing gives at-most-once; committing after gives at-least-once.
And 3 more inside the class, in Pro.
How the class is laid out
- The problem
- The simple version
- What exactly-once really covers
- Check your understanding