Windows环境下Locust 2.15.1需按Ctrl-C才启动的问题求助

我通过pip安装了locust==2.15.1，运行在Windows环境中。执行locust.exe后无任何反应，按下一次CTRL-C后，会出现如下堆栈跟踪信息，之后Locust就能正常运行：

locust.exe

<CTRL-C>

Exception in thread loguru-writer-2:
Traceback (most recent call last):
  File "C:\Users\xxx\AppData\Local\Programs\Python\Python39\lib\threading.py", line 973, in _bootstrap_inner
    self.run()
  File "C:\Users\xxx\AppData\Local\Programs\Python\Python39\lib\threading.py", line 910, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\xxx\venvs\myenv\lib\site-packages\loguru\_handler.py", line 270, in _queued_writer
    message = queue.get()
  File "C:\Users\xxx\AppData\Local\Programs\Python\Python39\lib\multiprocessing\queues.py", line 366, in get
    res = self._reader.recv_bytes()
  File "C:\Users\xxx\AppData\Local\Programs\Python\Python39\lib\multiprocessing\connection.py", line 221, in recv_bytes
    buf = self._recv_bytes(maxlength)
  File "C:\Users\xxx\AppData\Local\Programs\Python\Python39\lib\multiprocessing\connection.py", line 310, in _recv_bytes
    waitres = _winapi.WaitForMultipleObjects(
KeyboardInterrupt
[2023-05-31 13:52:25,102] computer/INFO/locust.main: Starting web interface at http://0.0.0.0:8089 (accepting connections from all network interfaces)
[2023-05-31 13:52:25,116] computer/INFO/locust.main: Starting Locust 2.15.1

解决思路 #

• 调整Loguru版本：报错源于Loguru的队列写入线程阻塞，尝试安装loguru==0.6.0或最新稳定版，修复与Python3.9+Windows多进程队列的兼容性问题
• 改用python -m locust启动：跳过虚拟环境的locust.exe包装，直接通过Python模块方式启动，避免进程启动时的阻塞
• 切换Python版本：尝试升级到Python3.10/3.11，旧版本Python在Windows的多进程通信可能存在未修复的bug
• 禁用Loguru队列日志：自定义Locust日志配置，使用标准库logging替代Loguru的异步队列机制，避免线程阻塞
• 检查安全软件：临时关闭Windows防火墙或杀毒软件，确认是否是安全软件拦截了Locust的进程通信导致启动阻塞

内容的提问来源于stack exchange，提问作者HeyMan