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Cassandra

Apache Cassandra ek open-source, distributed, wide-column store NoSQL database hai jo specifically…

Overview
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Cassandra — Quick Facts

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Property: Detail

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Full Name: Apache Cassandra

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Type: NoSQL Database — Wide-column Store

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Original Developer: Facebook (Avinash Lakshman,…

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Infobox

📚 | Property | Detail |…
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History

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2007: Facebook engineers Avinash…

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2008: Facebook ne Cassandra ko…

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March 2009: Apache Software…

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February 2010: Cassandra Apache…

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Architecture — Kaise Kaam Karta Hai

🎯 Cassandra ki architecture traditional databases se bilkul alag hai. Yahan koi…
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Data Model

⭐ Cassandra ka data model relational databases se different hai. Key concepts: | Concept |…
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Key Features

🔑 1. No Single Point of Failure: Har node equal hai. Koi ek node down ho jaye to bhi…
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CQL — Cassandra Query Language

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CREATE KEYSPACE: Database create…

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CREATE TABLE: Table define karna…

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INSERT / UPDATE: Data write karna…

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SELECT: Data read karna — lekin…

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Consistency Model

🌟 Cassandra ek eventually consistent system hai by default, lekin tum tunable consistency…
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Replication Strategy

🚀 Cassandra me do main replication strategies hain: 1. SimpleStrategy: Ek single datacenter…
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Use Cases

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Time-Series Data: IoT sensor data,…

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Messaging Systems: Chat messages,…

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Product Catalogs: E-commerce me…

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Recommendation Engines: User…

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Real-World Adopters

💡 | Company | Use Case |…
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Cassandra vs Other Databases

🎯 | Feature | Cassandra | MongoDB | HBase | DynamoDB |…
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Advantages

⭐ 1. Zero Downtime: No SPOF — nodes add/remove karo, cluster chalta rehta hai. Rolling…
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Disadvantages

🔑 1. Complex Operations: Cluster manage karna easy nahi — compaction tuning, repair…
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Operational Considerations

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Compaction Strategy: SizeTiered…

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Repair: Regular nodetool repair…

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Monitoring: JMX metrics,…

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Backup: Snapshots (nodetool…

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Mermaid Diagram — Ring Topology

🌟 `mermaid flowchart TB subgraph CassandraRing["Cassandra Cluster (Ring)"] N1["Node…
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Cassandra Ecosystem Tools

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nodetool: CLI utility for cluster…

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cqlsh: Interactive CQL shell —…

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DataStax Astra DB: Managed cloud…

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Apache Spark + Cassandra…

Comparison
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Cassandra vs Other Databases

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Type: Wide-column NoSQL

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Architecture: Peer-to-peer (no master)

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Query Language: CQL

Diagram
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Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

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NoSQL

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Database

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Distributed Computing

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Apache Hadoop

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MongoDB

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Amazon DynamoDB

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Cassandra ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Cassandra ka 'Full Name' kya hai?

Complete! 🎉
COMPLETE

Cassandra Complete!

Aliens Wiki · HIEN · Cinematic Knowledge

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Cassandra Complete

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NoSQL

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