# Billions of transactions, two-thirds lower cost: Why ProcessOut switched from Elasticsearch to ClickHouse Cloud

DevFeed: [Billions of transactions, two-thirds lower cost: Why ProcessOut switched from Elasticsearch to ClickHouse Cloud](<https://devfeed.tech/articles/billions-of-transactions-two-thirds-lower-cost-why-processout-switched-from-elasticsearch-to-clickhouse-cloud-5527.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/processout-switched-from-elasticsearch-to-clickhouse-cloud>)

Author: ClickHouse

Published: 2025-09-30T00:00:00Z

Content type: article

Language: en

Sources: [ClickHouse Blog](<https://devfeed.tech/sources/clickhouse-blog.md>)

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [elasticsearch](<https://devfeed.tech/topics/elasticsearch.md>), [Cloud](<https://devfeed.tech/topics/cloud.md>), [data-architecture](<https://devfeed.tech/topics/data-architecture.md>), [real-time](<https://devfeed.tech/topics/real-time.md>), [Transactions](<https://devfeed.tech/topics/transactions.md>), [Benchmark](<https://devfeed.tech/topics/benchmark.md>)

Tags: [analytics](<https://devfeed.tech/tags/analytics.md>), [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [cost](<https://devfeed.tech/tags/cost.md>), [data-architecture](<https://devfeed.tech/tags/data-architecture.md>), [elasticsearch](<https://devfeed.tech/tags/elasticsearch.md>), [performance](<https://devfeed.tech/tags/performance.md>), [real-time](<https://devfeed.tech/tags/real-time.md>), [transactions](<https://devfeed.tech/tags/transactions.md>)

## AI overview

ProcessOut replaced its costly, difficult-to-change Elasticsearch-based analytics architecture with ClickHouse Cloud. The migration reduced costs by two-thirds and reduced latency from minutes to approximately two seconds.

## Source excerpt

ProcessOut replaced a costly, slow, hard-to-change Elasticsearch setup with ClickHouse Cloud, lowering costs by two-thirds and reducing latency from minutes to ~2 seconds.