Databases

QuestDB, a high-performance time-series database, is widely adopted for financial systems, IoT platforms, and observability pipelines due to its blazing-fast ingestion and SQL compatibility. However, when scaled into enterprise-grade workloads, users encounter nuanced challenges: ingestion bottlenecks, out-of-memory crashes, and replication inconsistencies. Unlike traditional RDBMS systems, QuestDB's architecture is specialized for sequential writes and time-ordered data, which introduces unique troubleshooting scenarios. For architects and tech leads, failing to address these problems early can result in severe availability issues, delayed insights, and spiraling infrastructure costs.