Backend Sandbox Playgrounds

Interactive web workspaces demonstrating database concurrency control and key system design algorithms.

⚙️ Configuration

Simulated Transactions

Thread A (AlignBits): Deduct ₹500

Thread B (MobilePe): Deduct ₹500

Locking Strategy

Network Latency: 50ms

📊 Execution Monitor

Wallet Balance

₹800

Version Key

Console Output No active locks

> Ready for execution. Configure parameters and run.

⚙️ Caching Operations

Add Username to Database

Check if Username Exists (Request Flow)

💡 How it works:

A Bloom Filter prevents cache penetration (queries querying keys that don't exist, hitting DB directly). It hashes the input using 2 hash functions to set bits in an array. * If any hash bit is 0, the key is 100% NOT in the system (blocked before hitting database). * If all bits are 1, the key is PROBABLY in the system (allowed to proceed to DB/cache).

🛡️ Bloom Filter Bit-Array

Filter Operations Log

> Sandbox ready. Insert keys to begin hashing.