Question

Heroku上的服务器[貌似]随机返回H18错误。

我用：

Gunicorn（我试过同步和gevent工作者）
Flask
合剂的RESTful

如果我多次重复相同的请求，我偶尔会得到一个H18。我注意到，当我的代码中出现异常时，我经常得到这样的响应。我有一个定义的处理程序，它返回一个有效的HTTP错误响应，并且大部分时间都成功。有时它会失败 - 因为我无法理解。

这里＆＃34;糟糕的情况＆＃34;日志看起来像：

2018-03-10T17:50:51.875115+00:00 app[web.1]: [2018-03-10 17:50:51 +0000] [11] [DEBUG] PUT /api/v1/views/270
2018-03-10T17:50:51.879035+00:00 app[web.1]: PPMException: Token expired
2018-03-10T17:50:51.879442+00:00 app[web.1]: Traceback (most recent call last):
2018-03-10T17:50:51.879445+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request
2018-03-10T17:50:51.879447+00:00 app[web.1]:     rv = self.dispatch_request()
2018-03-10T17:50:51.879449+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request
2018-03-10T17:50:51.879451+00:00 app[web.1]:     return self.view_functions[rule.endpoint](**req.view_args)
2018-03-10T17:50:51.879452+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask_restful/__init__.py", line 480, in wrapper
2018-03-10T17:50:51.879456+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask/views.py", line 84, in view
2018-03-10T17:50:51.879454+00:00 app[web.1]:     resp = resource(*args, **kwargs)
2018-03-10T17:50:51.879458+00:00 app[web.1]:     return self.dispatch_request(*args, **kwargs)
2018-03-10T17:50:51.879464+00:00 app[web.1]:     resp = meth(*args, **kwargs)
2018-03-10T17:50:51.879466+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask_httpauth.py", line 88, in decorated
2018-03-10T17:50:51.879463+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask_restful/__init__.py", line 595, in dispatch_request
2018-03-10T17:50:51.879469+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask_httpauth.py", line 125, in authenticate
2018-03-10T17:50:51.879468+00:00 app[web.1]:     if not self.authenticate(auth, password):
2018-03-10T17:50:51.879471+00:00 app[web.1]:     return self.verify_password_callback(username, client_password)
2018-03-10T17:50:51.879473+00:00 app[web.1]:   File "/app/app/api_security.py", line 31, in verify_password
2018-03-10T17:50:51.879477+00:00 app[web.1]: PPMException: Token expired
2018-03-10T17:50:51.879475+00:00 app[web.1]:     raise PPMException("SECURITY_TOKEN_EXPIRED", http_code=401)
2018-03-10T17:50:51.879479+00:00 app[web.1]: 
2018-03-10T17:50:51.881229+00:00 app[web.1]: 10.189.169.232 - eyJleHAiOjE1MjA3MDQyNTAsImlhdCI6MTUyMDcwNDI0MCwiYWxnIjoiSFMyNTYifQ.eyJ1c2VyX2lkIjoiMyIsIm9yaWdpbmFsX2lzc3VlX2RhdGUiOiIyMDE4LTAzLTEwVDE3OjQ5OjI0Ljk3NTkwMCJ9.mB_NCtrGeDSq0ATs-Zl-Fg8qYRCx8YyIkjVdaLi_O6c 
[10/Mar/2018:17:50:51 +0000] "PUT /api/v1/views/270 HTTP/1.1" 401 91 "http://localhost:3000/" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
2018-03-10T17:50:51.881448+00:00 app[web.1]: [2018-03-10 17:50:51 +0000]     [11] [DEBUG] Closing connection. 
2018-03-10T17:50:51.975825+00:00 heroku[router]: sock=backend at=error code=H18 desc="Server Request Interrupted" method=PUT path="/api/v1/views/270" host=***-dev.herokuapp.com request_id=68b4ddb1-19b4-4753-9b3f-395c80fc777a fwd="81.164.187.197" dyno=web.1 connect=2ms service=106ms status=503 bytes=483 protocol=https

VS。如果没有H18，同样的异常怎么看：

2018-03-10T17:53:22.660154+00:00 app[web.1]: [2018-03-10 17:53:22 +0000] [10] [DEBUG] PUT /api/v1/views/270
2018-03-10T17:53:22.667461+00:00 app[web.1]: PPMException: Token expired
2018-03-10T17:53:22.669037+00:00 app[web.1]: Traceback (most recent call last):
2018-03-10T17:53:22.669041+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request
2018-03-10T17:53:22.669042+00:00 app[web.1]:     rv = self.dispatch_request()
2018-03-10T17:53:22.669044+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request
2018-03-10T17:53:22.669046+00:00 app[web.1]:     return self.view_functions[rule.endpoint](**req.view_args)
2018-03-10T17:53:22.669048+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask_restful/__init__.py", line 480, in wrapper
2018-03-10T17:53:22.669050+00:00 app[web.1]:     resp = resource(*args, **kwargs)
2018-03-10T17:53:22.669055+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask/views.py", line 84, in view
2018-03-10T17:53:22.669057+00:00 app[web.1]:     return self.dispatch_request(*args, **kwargs)
2018-03-10T17:53:22.669059+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask_restful/__init__.py", line 595, in dispatch_request
2018-03-10T17:53:22.669060+00:00 app[web.1]:     resp = meth(*args, **kwargs)
2018-03-10T17:53:22.669062+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask_httpauth.py", line 88, in decorated
2018-03-10T17:53:22.669064+00:00 app[web.1]:     if not self.authenticate(auth, password):
2018-03-10T17:53:22.669070+00:00 app[web.1]:   File "/app/app/api_security.py", line 31, in verify_password
2018-03-10T17:53:22.669075+00:00 app[web.1]: 
2018-03-10T17:53:22.669066+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/flask_httpauth.py", line 125, in authenticate
2018-03-10T17:53:22.669068+00:00 app[web.1]:     return self.verify_password_callback(username, client_password)
2018-03-10T17:53:22.669071+00:00 app[web.1]:     raise PPMException("SECURITY_TOKEN_EXPIRED", http_code=401)
2018-03-10T17:53:22.669073+00:00 app[web.1]: PPMException: Token expired
2018-03-10T17:53:22.677909+00:00 app[web.1]: 10.31.61.151 - eyJleHAiOjE1MjA3MDQyNTAsImlhdCI6MTUyMDcwNDI0MCwiYWxnIjoiSFMyNTYifQ.eyJ1c2VyX2lkIjoiMyIsIm9yaWdpbmFsX2lzc3VlX2RhdGUiOiIyMDE4LTAzLTEwVDE3OjQ5OjI0Ljk3NTkwMCJ9.mB_NCtrGeDSq0ATs-Zl-Fg8qYRCx8YyIkjVdaLi_O6c [10/Mar/2018:17:53:22 +0000] "PUT /api/v1/views/270 HTTP/1.1" 401 91 "http://localhost:3000/" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
***2018-03-10T17:53:22.678478+00:00 heroku[router]: at=info method=PUT path="/api/v1/views/270" host=***-dev.herokuapp.com request_id=9e22f6a9-c980-478f-9ff1-bc8bbd4fe8c7 fwd="81.164.187.197" dyno=web.1 connect=0ms service=19ms status=401 bytes=483 protocol=https
2018-03-10T17:53:22.678989+00:00 app[web.1]: [2018-03-10 17:53:22 +0000] [10] [DEBUG] Closing connection.

我看到的唯一区别是，在第一种情况下，我首先看到Gunicorn说＆＃34;关闭连接＆＃34;然后是heroku路由器说H18，而在第二种情况下，heroku路由器报告响应，然后Gunicorn正在关闭连接。如果Gunicorn提前关闭连接，有没有办法让我从应用程序中控制它？

Answer 1

我想我弄明白了。原因似乎是仍然有未读请求数据，所以我添加了＃34; request.stream.read（）＆＃34;在我的错误处理代码中。

Heroku上的随机H18错误简短请求

1 个答案: