Why MySQL JDBC Stalls on Java Virtual Threads—and What to Do

The article examines how MySQL’s JDBC driver has been slow to adopt Java’s virtual thread (Loom) support compared with Oracle, PostgreSQL, MariaDB and SQL Server drivers, explains the technical reasons behind the delay, offers a workaround by replacing synchronized with ReentrantLock, and recommends upgrading to the 9.x driver for optimal performance and security.

Driver CompatibilityJDBCJava virtual threads

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Why MySQL JDBC Stalls on Java Virtual Threads—and What to Do

DevOps Coach

Oct 31, 2025 · Backend Development

How Netflix’s Maestro Engine Gained a 100× Speed Boost with a New Actor‑Based Architecture

Netflix’s Maestro workflow orchestrator was redesigned with a lightweight, stateful actor model and Java virtual threads, cutting engine overhead from seconds to milliseconds, delivering a hundred‑fold performance increase while preserving scalability, reliability, and strong execution guarantees for massive data and ML pipelines.

Distributed SystemsJava virtual threadsNetflix Maestro

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How Netflix’s Maestro Engine Gained a 100× Speed Boost with a New Actor‑Based Architecture