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CassandraHub

Practice Queries

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Getting Started

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🏠 Welcome Home
📚 What is Cassandra?
💡 Why Choose Cassandra?
🌐 NoSQL Fundamentals
⚖️ CAP Theorem Explained
⚔️ Cassandra vs MongoDB/MySQL
✅ When to Use Cassandra
🗺️ Complete Learning Path

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Core Architecture

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🏛️ Architecture Overview
⭕ Ring Topology
👥 Peer-to-Peer Model
🎫 Token Ranges
📦 Virtual Nodes (Vnodes)
💬 Gossip Protocol
🔍 Snitch Strategy
🔀 Partitioners
🎯 Coordinator Node
🌱 Seed Nodes
💔 Handling Node Failures
🗺️ Cluster Topology

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Data Distribution

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📊 Partitioning Basics
🔢 Consistent Hashing
🌍 Data Distribution
📈 Replication Factor
🎯 Replication Strategies
→ Simple Strategy
→ Network Topology
🌐 Multi-Datacenter Setup
🏢 Rack Awareness
✉️ Hinted Handoff

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Consistency & Tuning

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📏 Consistency Levels
→ ONE
→ QUORUM
→ ALL
→ LOCAL_QUORUM
🎛️ Tunable Consistency
🔧 Read Repair
⏰ Eventual Consistency
💪 Strong Consistency

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Read & Write Path

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✍️ Write Path
→ Commit Log
→ Memtable
→ SSTable
📖 Read Path
→ Bloom Filter
→ Row Cache
→ Key Cache
🗜️ Compaction
⚰️ Tombstones
🗑️ GC Grace Period

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Data Modeling

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📐 Modeling Introduction
🎯 Query-Driven Design
🔑 Partition Key
📊 Clustering Columns
🔐 Primary Key (Complete)
🧩 Composite Keys
📏 Wide Rows
📌 Skinny Rows
📦 Denormalization
🗂️ Collection Types
📍 Static Columns
🔢 Counter Columns
🎨 Common Patterns
🚫 Anti-Patterns
🛠️ Modeling Tools

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CQL - Complete Guide

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📝 CQL Introduction
📖 CQL Syntax Basics
🗂️ Keyspaces
→ CREATE KEYSPACE
→ ALTER KEYSPACE
→ DROP KEYSPACE
📋 Tables
→ CREATE TABLE
→ ALTER TABLE
→ DROP TABLE
➕ INSERT
🔍 SELECT
✏️ UPDATE
🗑️ DELETE
📦 BATCH
🔤 Data Types
🎭 UDT
📑 Indexes
👁️ Materialized Views
⭐ CQL Best Practices

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Installation & Setup

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📋 System Requirements
🪟 Windows Installation
🍎 macOS Installation
🐧 Linux Installation
🐳 Docker Setup
🖥️ Single Node Cluster
🏢 Multi-Node Cluster
💻 cqlsh Setup

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Performance Tuning

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⚡ Performance Overview
🔍 Query Optimization
🗜️ Compaction Strategies
💾 Caching Strategies
☕ JVM Tuning
🧠 Memory Management
💿 Disk Optimization
🌐 Network Tuning
📊 Benchmarking
📈 Monitoring Tools

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Operations

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🛠️ Nodetool Commands
💾 Backup & Restore
📸 Snapshots
➕ Adding Nodes
➖ Removing Nodes
🔄 Replacing Nodes
🔧 Repair Operations
🔁 Rolling Restart
⬆️ Upgrading Cassandra
📜 Log Management
📊 Monitoring & Alerts
🔍 Troubleshooting

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Security

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🔐 Authentication
👮 Authorization
👥 Role Management
🔒 Encryption at Rest
🔐 Encryption in Transit
🛡️ SSL/TLS Setup
📋 Audit Logging
⭐ Security Best Practices

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Drivers & APIs

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🔌 Driver Overview
🐍 Python Driver
☕ Java Driver
🟢 Node.js Driver
🔷 Go Driver
🍃 Spring Data
⚡ Apache Spark
📨 Apache Kafka

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Hands-On Projects

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🎯 Projects Overview
📡 IoT Sensor Platform
💬 Real-time Messaging
⏰ Time Series Analytics
🛒 E-commerce Backend
👥 Social Network Feed
📜 Logging System
🎬 Recommendation Engine

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Practice Zone

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📝 Multiple Choice
🔍 Query Challenges
🎨 Data Modeling Tasks
🐛 Debug Scenarios
⚡ Performance Tuning
🏗️ Architecture Design

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Interview Prep

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💼 Top 100 Questions
🏗️ Architecture Questions
🎨 Data Modeling
🎭 Real Scenarios
🏗️ System Design
💡 Interview Tips

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Advanced Topics

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⚖️ LWT (Paxos)
📡 Change Data Capture
🔍 Full-Text Search
🌍 Geospatial Data
🕸️ Graph Data
📊 Analytics Workloads
🔄 Migration Strategies
☁️ Multi-Cloud Setup

📚

Resources

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📄 CQL Cheatsheet
🛠️ Nodetool Cheatsheet
🎨 Modeling Guide
🛠️ Tools & Utilities
📚 Books & Courses
👥 Community & Support

Hands-on Practice

Practice CQL Queries

Master Cassandra by writing real CQL queries!

Home › Practice Queries

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