试图找出如何在springcloud-feign中限制每个主机的最大可用连接数。
有一个简单的springboot应用程序，它只向自己发送和记录请求。尝试设置下一个配置以限制连接池，但似乎已被忽略：

feign.httpclient.max-connections-per-route=2
feign.httpclient.max-connections=2

有一个并行流，请求一个虚拟服务器，并在收到响应后写入日志。服务器在发送响应之前挂起5秒钟。
查看日志文件，我可以看到同时发出了12个请求。以我的电脑的逻辑核数来计算。

2021-04-02 16:33:39.521 [http-nio-8081-exec-6] INFO  o.s.web.servlet.DispatcherServlet - Completed initialization in 1 ms
2021-04-02 16:33:44.580 [ForkJoinPool.commonPool-worker-23] INFO  com.example.springdemo.TestClient - made '156' request
2021-04-02 16:33:44.580 [ForkJoinPool.commonPool-worker-19] INFO  com.example.springdemo.TestClient - made '327' request
2021-04-02 16:33:44.580 [ForkJoinPool.commonPool-worker-7] INFO  com.example.springdemo.TestClient - made '406' request
2021-04-02 16:33:44.580 [ForkJoinPool.commonPool-worker-21] INFO  com.example.springdemo.TestClient - made '577' request
2021-04-02 16:33:44.580 [ForkJoinPool.commonPool-worker-13] INFO  com.example.springdemo.TestClient - made '827' request
2021-04-02 16:33:44.580 [ForkJoinPool.commonPool-worker-31] INFO  com.example.springdemo.TestClient - made '452' request
2021-04-02 16:33:44.582 [ForkJoinPool.commonPool-worker-17] INFO  com.example.springdemo.TestClient - made '31' request
2021-04-02 16:33:44.582 [ForkJoinPool.commonPool-worker-5] INFO  com.example.springdemo.TestClient - made '906' request
2021-04-02 16:33:44.582 [ForkJoinPool.commonPool-worker-27] INFO  com.example.springdemo.TestClient - made '968' request
2021-04-02 16:33:44.582 [ForkJoinPool.commonPool-worker-9] INFO  com.example.springdemo.TestClient - made '77' request
2021-04-02 16:33:44.582 [ForkJoinPool.commonPool-worker-3] INFO  com.example.springdemo.TestClient - made '15' request
2021-04-02 16:33:44.583 [main] INFO  com.example.springdemo.TestClient - made '656' request

我错过什么了吗？
下面是我用来重现问题的应用程序：
使用外国客户机的代码：

public void tryParallelInvocation() {
        IntStream.range(0, 1000)
                .parallel()
                .forEach(value -> {
                    feignClient.testRequest(String.valueOf(value));
                    LOG.info("made '" + value + "' request");
                });
    }

外部客户端接口：

@FeignClient(value = "default", url = "http://localhost:8081/")
public interface TestFeignClient {

    @GetMapping("/demo")
    String testRequest(@RequestParam("param") String param);

}

休息端点：

@GetMapping
    public ResponseEntity<String> demo(@RequestParam(value = "param") String param) {
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return ResponseEntity.ok(param);
    }

依赖项：

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.4</version>
        <relativePath/>
    </parent>
...
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>

应用程序属性：

server.port=8081
feign.httpclient.max-connections-per-route=2
feign.httpclient.max-connections=2
feign.httpclient.enabled=true