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Quick POC: "Master-Follower Replication" using RocksDB

Mar 29, 2025 · 3 min read · High Level Design RocksDB is a high-performance embedded database for key-value data, designed for fast storage. In this post, I'll show you how to create a simple master-follower replication setup using RocksDB's backup and restore functionality. P...

Quick POC for "distributed lock" using ZooKeeper

Mar 27, 2025 · 3 min read · step-by-step POC for distributed locking using ZooKeeper. Simulate two clients competing for a lock (e.g., accessing a shared resource like a database). Step 1: Start ZooKeeper brew install zookeeper zkServer start Step 2: Create a Lock Path Termi...

Quick POC for "service discovery" using ZooKeeper

Mar 27, 2025 · 2 min read · POC for service discovery where 3 service instances register themselves, and 1 instance goes down. You’ll use ZooKeeper CLI and observe how ephemeral nodes and watches handle failures. Step 1: Install and Start ZooKeeper Start ZooKeeper Server: br...

Quick POC for "leader election" using ZooKeeper

Mar 27, 2025 · 4 min read · What Problem Does Leader Election Solve? In distributed systems, many nodes (servers) work together to perform tasks. However, some tasks require coordination by a single node to avoid conflicts or inconsistencies. For example: Database Writes : Onl...