Exactly-Once Stream Processing

Data & AI Pipelines diagram · made in Skemio

Streaming architecture diagram showing message flow through operators with checkpoint barriers and two-phase commit sink writing to database.

Open it in Skemio Make your own

What it shows

Checkpoint barriers flow inline with stream records to align operators.
State backends persist snapshots synchronously when barriers arrive.
Two-phase commit sink contracts ensure downstream DB commits match state.

The takeaway

Barrier synchronization paired with two-phase commit sinks delivers true end-to-end exactly-once.

#StreamProcessing
#ApacheFlink
#DataEngineering
#SystemDesign
#Backend

More data & ai pipelines diagrams