# Kafka Consumer memory usage

DevFeed: [Kafka Consumer memory usage](<https://devfeed.tech/articles/kafka-consumer-memory-usage-20858.md>)

Original publisher: [Read original article](<https://ivanursul.com/kafka-consumer-memory-usage>)

Author: Ivan Ursul

Published: 2018-03-15T00:00:00Z

Content type: article

Language: en

Sources: [Ivan Ursul](<https://devfeed.tech/sources/ivan-ursul.md>)

Topics: [Kafka](<https://devfeed.tech/topics/kafka.md>), [data](<https://devfeed.tech/topics/data.md>)

Tags: [events](<https://devfeed.tech/tags/events.md>), [java](<https://devfeed.tech/tags/java.md>), [kafka](<https://devfeed.tech/tags/kafka.md>), [memory](<https://devfeed.tech/tags/memory.md>), [migrations](<https://devfeed.tech/tags/migrations.md>), [mongodb](<https://devfeed.tech/tags/mongodb.md>), [partition](<https://devfeed.tech/tags/partition.md>), [performance](<https://devfeed.tech/tags/performance.md>), [programming](<https://devfeed.tech/tags/programming.md>)

## AI overview

An experiment measures Kafka memory usage for topics with 1 and 1,000 partitions on a single-node cluster. Under load rates of 1, 200, 500, and 1,000 messages per second, memory usage remained similar: about 290 MB for the one-partition topic and 310 MB for the 1,000-partition topic.

## Source excerpt

I'm working with Kafka for more than 2 years and I wasn't sure if Kafka Consumer eats more RAM memory when it has more partitions. I couldn't find any useful information on the internet, so I decided to measure everything by myself.