presto-main/src/main/java/io/prestosql/server/ServerMainModule.java/ServerMainModule/createAsyncHttpResponseCoreExecutor
class ServerMainModule:    @Provides
    @Singleton
    @ForAsyncHttp
    public static ExecutorService createAsyncHttpResponseCoreExecutor()
    {
        return newCachedThreadPool(daemonThreadsNamed("async-http-response-%s"));
    }