Why We Chose ClickHouse to Improve Our User-Facing Analytics Performance of 1B+ Rows

The text discusses the decision-making process behind choosing ClickHouse as the data store for improving user-facing analytics performance of over 1 billion rows. It highlights the benefits of using ClickHouse, such as compression, speed, and fast data ingestion. The author also shares challenges faced during implementation, including dealing with a large number of duplicate records and creating efficient queries. They discuss how they used Kafka Connect and Debezium to move data into ClickHouse and utilized MergeTree engines for deduplicating rows. Additionally, the text covers materialized views in ClickHouse and how they can be used to transform data sourced from Kafka. The author concludes by sharing their future plans for improving performance with ClickHouse.

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