GUnicorn继续在烧瓶应用程序上重新启动/打破

Question

我有一个烧瓶应用程序，我正试图过渡到通过gunicorn运行。我在这方面遇到了很多问题。以下是我的应用程序的运行代码：

app.run(host=HOST, port=PORT, debug=DEBUG_FLAG)

首先，如果DEBUG_FLAG==true，应用程序将永远不会真正启动，但会继续重新启动，在本地点击它将不起作用。它只是一次又一次地这样做：

gunicorn analytics_service:app                                                                                                                         
 * Running on http://127.0.0.1:5000/
 * Restarting with reloader
 * Running on http://127.0.0.1:5000/
 * Restarting with reloader
 * Running on http://127.0.0.1:5000/
 * Restarting with reloader

如果我用DEBUG_FLAG==False启动它，它实际上会启动并服务于一些请求，但由于未知原因，它仍然会频繁中断并重新启动：

gunicorn analytics_service:app                                                                                                                         (env: BigQueryTest)
 * Running on http://127.0.0.1:5000/
127.0.0.1 - - [28/Aug/2014 08:59:05] "GET /metrics/ctr?location=blah&start_date=2014-05-21&end_date=2014-06-01 HTTP/1.1" 200 -
127.0.0.1 - - [28/Aug/2014 08:59:15] "GET /metrics/ctr?location=blah&start_date=2014-05-21&end_date=2014-06-05 HTTP/1.1" 200 -
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 64693)
Traceback (most recent call last):
  File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/SocketServer.py", line 295, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/SocketServer.py", line 321, in process_request
    self.finish_request(request, client_address)
  File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/SocketServer.py", line 334, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/SocketServer.py", line 649, in __init__
    self.handle()
  File "/Users/Eli/.virtualenvs/BigQueryTest/lib/python2.7/site-packages/werkzeug/serving.py", line 200, in handle
    rv = BaseHTTPRequestHandler.handle(self)
  File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/BaseHTTPServer.py", line 340, in handle
    self.handle_one_request()
  File "/Users/Eli/.virtualenvs/BigQueryTest/lib/python2.7/site-packages/werkzeug/serving.py", line 231, in handle_one_request
    self.raw_requestline = self.rfile.readline()
  File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/socket.py", line 447, in readline
    data = self._sock.recv(self._rbufsize)
  File "/Users/Eli/.virtualenvs/BigQueryTest/lib/python2.7/site-packages/gunicorn/workers/base.py", line 154, in handle_abort
    sys.exit(1)
SystemExit: 1
----------------------------------------
 * Running on http://127.0.0.1:5000/
 * Running on http://127.0.0.1:5000/
 * Running on http://127.0.0.1:5000/
 * Running on http://127.0.0.1:5000/
 * Running on http://127.0.0.1:5000/

如前所述，如果我运行Flask的本机服务器，一切正常。问题只会出现在gunicorn身上。帮助

Answer 1

我怀疑你的问题是你正在调用应用程序。run（）。

应用程序。run（）函数启动Flask的开发web服务器。当您使用除Flask之外的web服务器时，您不必调用此函数，您的web服务器（本例中为gunicorn）将有自己的启动方式。

通常，app.run（）行位于如果__name__ == '__main__'：条件中（参见Flask官方留档示例），因此它仅在您直接执行脚本时运行，如pythonrun.py。我建议您将其添加到run.py脚本中并重新测试。如果有任何剩余的问题，请描述。