r/apachekafka is a subreddit with 21k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses kafka, connect, apache kafka, streams, and msk.
Talk and share advice about the most popular distributed log, Apache Kafka and its ecosystem. This includes Apache Kafka itself, and compatible implementations of the protocol.
Popular Themes in r/apachekafka
#1
Solution Requests
: "Kafka Streams at-least-once delivery - How to prevent duplicate calls to non-idempotent services?"
14 posts
#2
Advice Requests
: "New to Data Engineering – Where should I start with Hadoop, Kafka, PySpark, YARN, and HBase?"
14 posts
#3
Ideas
: "Apache Kafka® Deserves Topic Types"
9 posts
#4
News
: "Jikkou 1.0 is out — Iceberg, multi-cluster orchestration, and Confluent Cloud RBAC"
7 posts
#5
Self-Promotion
: "Jack Vanlightly - Introducing Dimster, a performance benchmarking tool for Apache Kafka"
6 posts
#6
Pain & Anger
: "Kafka's Broken Promise: There is No Goldilocks Log"
3 posts
#7
Money Talk
: "Spending too much on Confluent Cloud for a modest workload — considering MSK. Anyone made this switch?"
1 post
Popular Topics in r/apachekafka
#1
Kafka
: "A complete Event-Driven Architecture for Online Machine Learning (Kafka, Flink, and ClickHouse)"
84 posts
#2
Connect
: "[Open Source] Kafka Connect SMT that hot-reloads Debezium CDC filter rules from Redis/Kafka/file - no Connector restart needed"
6 posts
#3
Apache Kafka
: "Apache Kafka performance #1 - linger.ms — Jack Vanlightly"
6 posts
#4
Streams
: "Kafka Streams at-least-once delivery - How to prevent duplicate calls to non-idempotent services?"
5 posts
#5
Msk
: "Automating Msk ZooKeeper to KRaft cluster migration"
4 posts
#6
Data
: "We built a Kafka Connect control plane that never touches customer Data. Here's why."
4 posts
#7
Consumers
: "Kafka Simulator v1.2 — Consumers and the rebalance"
3 posts
#8
Community
: "Apache Kafka Community Events at Current London"
3 posts
#9
Ai
: "RFC: What do we want to do about Ai-generated content on r/apachekafka?"
3 posts
#10
Visualization
2 posts
Flair Used in r/apachekafka
#1
Blog
: "A complete Event-Driven Architecture for Online Machine Learning (Kafka, Flink, and ClickHouse)"
69 posts
#2
Question
: "New to Data Engineering – Where should I start with Hadoop, Kafka, PySpark, YARN, and HBase?"
55 posts
#3
Tool
: "Open-source Salesforce connectors for Kafka Connect"
19 posts
#4
Video
: "Kafka for Architects • Ekaterina Gorshkova & Viktor Gamov"
5 posts
#5
Blog (AI)
: "Using a compacted Kafka topic to keep a local cache in every pod"
5 posts
#6
Tool (AI)
: "Built a read-only MCP server for Kafka observability — curious what else ops folks would want an agent to see"
1 post
Member Growth in r/apachekafka
Yearly
+4k members(22.9%)
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Last updated: August 11, 2026