Apache Cassandra NoSQL Database Interface

Apache Cassandra - NoSQL Database

What is Apache Cassandra?

Apache Cassandra is a distributed NoSQL database designed to handle massive amounts of data across multiple servers without single point of failure. Used by Netflix, Instagram, Uber to handle millions of transactions in real-time.

GitHub Stars
8.5k+
Year created
2008
Latest version
v4.1
Database type
Wide-column NoSQL
1000+
Nodes in cluster
99.99%
Uptime SLA
100k+
Ops/sec per node
user_analytics.cql
-- Cassandra Query Language (CQL)
CREATE KEYSPACE analytics
WITH replication = {
'class': 'SimpleStrategy',
'replication_factor': 3
};
CREATE TABLE analytics.user_events (
user_id UUID,
timestamp TIMESTAMP,
event_type TEXT,
data MAP<TEXT, TEXT>,
PRIMARY KEY (user_id, timestamp)
) WITH CLUSTERING ORDER BY
(timestamp DESC);
-- Zapytanie o zdarzenia użytkownika
SELECT * FROM user_events
WHERE user_id = ?
AND timestamp > '2025-01-01'
LIMIT 100;
Output:
Connected to Cassandra cluster
Keyspace 'analytics' created successfully
Table 'user_events' created successfully
Query executed: 3 rows returned
Response time: 2.4ms
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Advantages of Apache Cassandra in big data projects

Why do Netflix, Instagram and Uber choose Cassandra? Here are the key benefits of distributed NoSQL database in 2025

Challenges of Apache Cassandra – honest assessment

Every technology has limitations. Here are the main Cassandra challenges and ways to mitigate them in real big data projects

What is Apache Cassandra used for?

Main Cassandra use cases in 2025 – from IoT to real-time analytics with examples from tech giants

Big Data systems and data warehousing

Storing petabytes of data with linear scalability, data lakes, large-scale real-time analytics

tech.useCases.frameworks
DataStax EnterpriseApache SparkKafkaElasticsearchHadoop
tech.useCases.realExamples

Netflix (100TB+ streaming data), Instagram (billions of photos), Uber (millions of daily rides)

Real-time analytics and dashboards

Real-time operational dashboards, system monitoring, low-latency business intelligence

tech.useCases.frameworks
Apache SparkKafka StreamsFlinkStormGrafanaPrometheus
tech.useCases.realExamples

Apple iCloud monitoring, eBay user activity tracking, Sony gaming telemetry

IoT and time-series systems

IoT sensor data collection, device telemetry, infrastructure monitoring, industrial applications

tech.useCases.frameworks
MQTTApache KafkaInfluxDB compatibilityGrafanaNode.js
tech.useCases.realExamples

Tesla vehicle telemetry, Smart city sensors, Industrial equipment monitoring

Globally distributed applications

Multi-datacenter deployments, global applications with high availability, disaster recovery, geo-distributed systems

tech.useCases.frameworks
DockerKubernetesMicroservicesSpring BootNode.jsPython
tech.useCases.realExamples

Discord chat infrastructure, Spotify global music streaming, Reddit content distribution

FAQ: Apache Cassandra – Frequently Asked Questions

Complete answers to questions about Cassandra database – from basics to enterprise deployment

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