# How We Cut Kafka Consumer Deployment Costs by 83%

DevFeed: [How We Cut Kafka Consumer Deployment Costs by 83%](<https://devfeed.tech/articles/how-we-cut-kafka-consumer-deployment-costs-by-83-28062.md>)

Original publisher: [Read original article](<https://tech.trivago.com/post/2026-06-12-how-we-cut-kafka-consumer-deployment-costs-by-83/>)

Author: ZhongLi Shen He creates fantastic software as a backend engineer GitHub profile Linkedin profile

Published: 2026-06-12T00:00:00Z

Content type: tutorial

Language: en

Sources: [Trivago](<https://devfeed.tech/sources/trivago.md>)

Topics: [Kafka](<https://devfeed.tech/topics/kafka.md>), [Deployer](<https://devfeed.tech/topics/deployer.md>), [Deployment](<https://devfeed.tech/topics/deployment.md>), [reactive](<https://devfeed.tech/topics/reactive.md>), [Library](<https://devfeed.tech/topics/library.md>)

Tags: [backend](<https://devfeed.tech/tags/backend.md>), [backpressure](<https://devfeed.tech/tags/backpressure.md>), [debugging](<https://devfeed.tech/tags/debugging.md>), [deployment](<https://devfeed.tech/tags/deployment.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [java](<https://devfeed.tech/tags/java.md>), [kafka](<https://devfeed.tech/tags/kafka.md>), [library](<https://devfeed.tech/tags/library.md>), [performance](<https://devfeed.tech/tags/performance.md>), [reactive](<https://devfeed.tech/tags/reactive.md>)

## AI overview

This post explains how trivago investigated PSE-kafka's low CPU usage, slow Kafka polling, and consumer lag. The investigation found that replacing the in-house KafkaReceiverFlux with spring-kafka removed the lag, while the team continued looking for a suitable fix that preserved pull-based consumption and backpressure. The changes ultimately cut infrastructure costs by 83% and ended a run of 19 P1 incidents.

## Source excerpt

This post walks through a layered performance investigation that cut PSE-kafka's infrastructure costs by 83% and ended a run of 19 P1 incidents.PSE-kafka (price-search-engine-kafka) i...