Question

我有一个Flask应用程序我正试图过渡到通过gunicorn。我遇到了很多这方面的问题。这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实际启动，但只会继续重启，并且在本地命中它将无法正常工作。它只是一遍又一遍地做到这一点：

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，它实际上会启动并提供一些请求，但仍会因为未知原因而频繁中断和重启：

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/

如上所述，如果我运行Flask的本机服务器，一切正常。只有gunicorn会出现问题。帮助

Answer 1

我怀疑你的问题是你在呼叫app.run()。

app.run()函数启动Flask的开发Web服务器。当您使用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if __name__ == '__main__':条件内（有关示例，请参阅Flask官方文档），因此它只会在您直接执行脚本时运行，如python run.py中所示。我建议您将其添加到run.py脚本并重新测试。如果还有任何遗留问题请说明。

Gunicorn继续在Flask应用程序上重启/打破

1 个答案: