To configure the number of threads used by the Netty , you can use :

    When dealing with blocking operations, Micronaut will shift the blocking operations to an unbound, caching I/O thread pool by default. You can configure the I/O thread pool using the ExecutorConfiguration named . For example:

    1. micronaut:
    2.         io:
    3.            nThreads: 75

    The above configuration will create a fixed thread pool with 75 threads.