Additional Notes
Why is blocking the event loop so damaging in WebFlux?
Track: Java
Topic: Reactive Streams
Focus: Blocking the Event Loop
Java: Blocking the Event Loop
Answer
Because a small number of shared event-loop threads must stay free to keep many connections responsive.
If an event-loop thread blocks on JDBC, `Thread.sleep`, or another blocking call, that thread stops serving other work. With only a few such threads, one bad blocking call can degrade responsiveness for a large part of the system.
If an event-loop thread blocks on JDBC, `Thread.sleep`, or another blocking call, that thread stops serving other work. With only a few such threads, one bad blocking call can degrade responsiveness for a large part of the system.
Topics: Blocking the Event Loop Java Reactive Streams