爲什麼未捕獲的異常會被記錄到Sentry兩次？

Question

我正在測試Flask應用程序中的異常如何記錄到Sentry，並注意到相同的異常總是被記錄兩次，並且視覺上有不同的堆棧跟蹤。爲什麼會發生這種情況，我應該如何預防它？

對第一個入口，我得到以下堆棧跟蹤：

File "raven/middleware.py", line 35, in __call__ 
    iterable = self.application(environ, start_response) 
    File "flask/app.py", line 1820, in wsgi_app 
    response = self.make_response(self.handle_exception(e)) 
    File "flask/app.py", line 1403, in handle_exception 
    reraise(exc_type, exc_value, tb) 
    File "flask/app.py", line 1817, in wsgi_app 
    response = self.full_dispatch_request() 
    File "flask/app.py", line 1477, in full_dispatch_request 
    rv = self.handle_user_exception(e) 
    File "flask/app.py", line 1381, in handle_user_exception 
    reraise(exc_type, exc_value, tb) 
    File "flask/app.py", line 1475, in full_dispatch_request 
    rv = self.dispatch_request() 
    File "flask/app.py", line 1461, in dispatch_request 
    return self.view_functions[rule.endpoint](**req.view_args) 
    File "app/api_1_0/security/decorators.py", line 52, in decorated 
    self._process(permission) 
    File "app/api_1_0/security/decorators.py", line 27, in _process 
    raise FooException('foo exception in _process') 

對於第二個條目，堆棧跟蹤如下：

File "flask/app.py", line 1817, in wsgi_app 
    response = self.full_dispatch_request() 
    File "flask/app.py", line 1477, in full_dispatch_request 
    rv = self.handle_user_exception(e) 
    File "flask/app.py", line 1381, in handle_user_exception 
    reraise(exc_type, exc_value, tb) 
    File "flask/app.py", line 1475, in full_dispatch_request 
    rv = self.dispatch_request() 
    File "flask/app.py", line 1461, in dispatch_request 
    return self.view_functions[rule.endpoint](**req.view_args) 
    File "app/api_1_0/security/decorators.py", line 52, in decorated 
    self._process(permission) 
    File "app/api_1_0/security/decorators.py", line 27, in _process 
    raise FooException('foo exception in _process') 

Answer 1

集燒瓶調試爲False

例如在github上

app.run(debug=True) 
to 
app.run(debug=False) 

相關的問題：https://github.com/getsentry/raven-python/issues/412