This week we tackled the "harder half" of data ingestion. Week 2 was foundational "how to receive data"; Week 3 was "how to make it robust when data flows endlessly, failures happen, operational DBs can't stop, and multiple components intertwine." Today we reassemble scattered pieces into one picture.
One core question ties them together: "How do we ingest endless flowing data — amid duplicates, reordering, failures — without stopping operational systems, so multiple consumers each use it?" This week's five days precisely correspond to five parts of that question.