Introduction: Why Your GoldenGate Trails Need Encryption If you're running Oracle GoldenGate in production, your trail files are essentially the heartbeat of your data replication. They contain captured transactions, metadata, and complete before/after images of your data changes. Without encryption, these files are vulnerable—whether sitting on shared storage, captured in backups, or transmitted across networks. In this comprehensive guide, I'll walk you through implementing AES256 encryption for Oracle GoldenGate trail files in a bidirectional replication setup. We'll cover both local trail storage encryption and network transmission security between two hosts. What You'll Achieve By the end of this tutorial, you'll have: Encrypted trail files written to disk (data at rest protection) Encrypted network transmission between source and target systems Bidirectional encryption working seamlessly in both directions Minimal performance impact while mainta...
Welcome back to my PostgreSQL optimization series! In previous posts, I covered installing PostgreSQL 18 with an optimized disk layout and relocating WAL files to a dedicated disk. Today, I'm tackling another critical performance optimization: moving temporary files to their own disk volume. If you've ever run complex queries involving large sorts or joins and watched your database slow to a crawl, this optimization is for you. Understanding PostgreSQL Temporary Files Before we dive into the how, let's understand the what and why. PostgreSQL creates temporary files when performing operations that exceed available memory. These files support operations like: Large sorts - When ORDER BY clauses process more data than fits in work_mem Hash joins - When joining large tables that exceed hash_mem limits Aggregations - GROUP BY operations on massive datasets Window functions - Complex analytical queries with partitioning Here's what makes temporary files unique:...