Offload Blocking Work to a Vert.x Worker Verticle
Keep Vert.x event loops responsive by moving blocking I/O to a dedicated worker verticle pool.
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javaRun Blocking Code in Vert.x Without Stalling the Event Loop
Blocking the Vert.x event loop with JDBC or file I/O destroys throughput. Learn when to use worker verticles and how to size the worker pool.
Vert.x HTTP Server and Worker Verticle: Does Offloading Blocking JDBC to a Worker Verticle Eliminate Concurrency‑Dependent Latency Spikes?
The goal is to determine whether moving blocking JDBC operations from an event‑loop verticle to a dedicated worker verticle removes the latency spikes that appear only under high concurrent request loads in a Vert.x‑based HTTP server. Constraints include the default shared worker pool size (available processors × 2), which may become a bottleneck when the nu