# How to Achieve Real-Time Exactly-Once Ingestion from Kafka to ClickHouse

DevFeed: [How to Achieve Real-Time Exactly-Once Ingestion from Kafka to ClickHouse](<https://devfeed.tech/articles/how-to-achieve-real-time-exactly-once-ingestion-from-kafka-to-clickhouse-18550.md>)

Original publisher: [Read original article](<https://www.tinybird.co/blog/kafka-to-clickhouse-exactly-once>)

Author: Gonzalo Gómez

Published: 2025-12-16T00:00:00Z

Content type: tutorial

Language: en

Sources: [Tinybird](<https://devfeed.tech/sources/tinybird.md>)

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [Kafka](<https://devfeed.tech/topics/kafka.md>), [real-time](<https://devfeed.tech/topics/real-time.md>)

Tags: [architecture](<https://devfeed.tech/tags/architecture.md>), [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [kafka](<https://devfeed.tech/tags/kafka.md>), [real-time](<https://devfeed.tech/tags/real-time.md>), [the-data-base](<https://devfeed.tech/tags/the-data-base.md>)

## AI overview

A tutorial on an architectural pattern for achieving exactly-once ingestion from Kafka to ClickHouse in real time. The supplied text states that the pattern guarantees no duplicates.

## Source excerpt

Exactly-once delivery from Kafka to ClickHouse isn't magic. It's architecture. Here's the pattern that guarantees no duplicates.