Real-Time Analytics Stack with Kafka, Flink, and ClickHouse
Real-Time Analytics Stack with Kafka, Flink, and ClickHouse
April 30, 2025
In today’s digital businesses, real-time decisions require real-time data. At Essid Solutions, we design and implement low-latency analytics platforms using Apache Kafka, Apache Flink, and ClickHouse to deliver streaming insights at scale.
🔧 Why Real-Time Analytics?
- Detect anomalies or fraud in real-time
- Optimize marketing campaigns instantly
- Power recommendation engines and personalization
- Monitor IoT or sensor data with live dashboards
Batch ETL isn’t fast enough when milliseconds matter.
⚖️ Core Components of a Real-Time Stack
- Data Ingestion – Apache Kafka, MQTT, WebSockets
- Stream Processing – Apache Flink or Kafka Streams for windowing, joins, enrichment
- Analytics Database – ClickHouse for ultra-fast OLAP queries
- Visualization – Grafana, Redash, Superset
- Monitoring & Alerting – Prometheus, Alertmanager
🌐 Architecture Overview
[ Data Sources: Apps, Sensors, APIs ]
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[ Kafka Topic Streams ]
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[ Flink Jobs: Enrichment, Filtering, Joins ]
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[ ClickHouse OLAP DB ] ---> [ Dashboards & Alerts ]
Optional: Use Kafka Connect to bridge sources like PostgreSQL or S3.
💼 Use Case: Fintech Fraud Detection System
A fintech company wanted to detect suspicious transactions in real-time. We:
- Ingested data via Kafka from APIs and mobile apps
- Built Flink jobs for rule-based fraud scoring
- Stored results in ClickHouse with sub-second queries
- Visualized alerts in Grafana
Result: Reduced fraud resolution time from hours to seconds.
📅 Build Your Real-Time Analytics Stack
We’ll help you launch scalable, event-driven pipelines for live business insights.
👉 Request a real-time architecture call
Or email: hi@essidsolutions.com