Analytics migration to ClickHouse

Fourteen billion rows moved under a dual-write cutover. Zero downtime, and one rollback executed cleanly at 02:40.

Stack

ClickHouse · Kafka Connect · Airflow

Text

This implementation note is listed but not written. The index carries its summary, its stack and the numbers it produced. The constraints, decisions, measurements and named failure modes are not yet migrated.

Principle 4.8 says an architecture is not presented without its failure mode, so this page does not present one until it can.

ImranImplementation 3.4complete