Mengoperasikan Kafka di production memerlukan perhatian terhadap ukuran cluster, replikasi, monitoring, security, dan maintenance — Kafka adalah sistem terdistribusi yang powerful namun operasionally-complex. Memahami pertimbangan operasional (atau menggunakan managed Kafka) adalah penting untuk menjalankannya dengan andal.
Setup cluster dan reliability
✓ Adequate BROKERS → size the cluster for throughput, storage, and replication needs
✓ REPLICATION → replication factor ≥ 3, min.insync.replicas for durability (no data loss)
✓ Spread across racks/AZs → survive failures (rack awareness)
✓ PARTITIONS → plan partition counts for parallelism and growth (hard to reduce later)
✓ Capacity planning → throughput, retention/storage, growth
