I have a django project which used the normal email admins on an unhandled exception when debug is set to False. ie in production.
I normally just review the error message and the stack trace. However I clicked on the request url link, which managed to recreate the error on the prouduction site (which then fired off another email).
What is this request url? Does it recreate the full http request (including the session etc..) which resulted in the original error?
Can I get the link to point to a local version of the site? (As after fixing a previous error clicking on the earlier request url has manged to create a recent error that we have been unable to reproduce, so it would be good to recreate this locally so it can be debugged.
Related
I am getting the following 500 server error when I deploy my Django web application to google app engine:
Error server error the server encountered an error and could not complete your request please try again in 30 seconds
Simply refreshing the page solves this issue and renders the page. However, this isn't ideal and I want the page to load correctly the first time tried. This error does not occur on my localhost, it only occurs on the deployed site and typically during form submissions and rendering detail pages.
I've researched the HTTP status codes in Django extensively from their documentation. It does not matter if the app is set in DEBUG mode or not. The same error appears. This is happening for both GET and POST requests. I have also tried to use a try-except block to retry the request multiple times before accepting failure.
My configuration:
Django: 3.2.9
Browser: Chrome 98.0.4758.80
Simply needed to upgrade my google app engine tier to a more professional level. Nothing was wrong, I just outgrew my tier and it just needed more computing power.
I have a requirement to catch this exception or show some log if browse with below invalid filename :
http://localhost/ABC/xyx.asmx
Server Error in '/' Application.
The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.
Requested URL: /.asmx
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4261.0
In web.config, you have two methods to custom error page.
When the error is caused by IIS or any other but not asp.net, IIS will shows error page like these.
If you want to change them, check the custom error pages in Error Pages module. Then delete the existing status code and corresponding page path, and add a new one.
When the error is caused by the asp.net, IIS will show error page like yello screen of death(YSOD). You can change it in section. If you want to show custom error page to remote visitor and YSOD to local vistor, you can set mode to RemoteOnly. You can configure this in .NET Error Pages Module.
I am troubleshooting a Django app.
Recently the app seems to Randomly generate CSRF verification errors:
CSRF verification failed. Request aborted.
(Resulting in a 403)
Where can I find detailed information on the cause of the verification failure?
The error you're seeing is on the client side - which won't by default know what's going wrong on your server unless you have set DEBUG = True (which you don't want to do in production).
If it was replicable on your staging server it would be easy to fix, since you could replicate the error with DEBUG = True on staging and quickly see where the verification fails in Django's csrf.py.
What you're looking for is the output of which of these error is occurring on your server.
If you implement logging in Django you'll be able to investigate and determine which of these errors was triggered on your production site. A service like Sentry makes this even simpler since it will send you the traceback anytime an error happens.
I've spent over 8 hours trying to get this Django site up and running on an Azure Website. I've nearly thrown in the towel would really appreciate some help.
So far I have tried numerous methods and followed different tutorials, but they have all yielded the same result. Here is the most recent tutorial I have followed: http://www.windowsazure.com/en-us/develop/python/tutorials/web-sites-with-django/
Now that my site is "up", I am seeing a 500 error for all requests. Here is the error in the log:
The page cannot be displayed because an internal server error has occurred.
Most likely causes:
IIS received the request; however, an internal error occurred during
the processing of the request. The root cause of this error depends on which mo
dule handles the request and what was happening in the worker process when this
error occurred. IIS was not able to access the web.config file for t
he Web site or application. This can occur if the NTFS permissions are set incor
rectly. IIS was not able to process configuration for the Web site o
r application. The authenticated user does not have permission to u
se this DLL. The request is mapped to a managed handler but the .
NET Extensibility Feature is not installed.
Things you can try:
Ensure that the NTFS permissions for the web.config file are correct
and allow access to the Web server's machine account. Check the ev
ent logs to see if any additional information was logged. Verify the p
ermissions for the DLL. Install the .NET Extensibility feature if th
e request is mapped to a managed handler. Create a tracing rule to tra
ck failed requests for this HTTP status code. For more information about creatin
g a tracing rule for failed requests, click here.
Please help!
I got it working by settings up a new django project from the azure gallery and changed some configs and such.
Edit: The configs I updated was just the name of my app. In my case I also updated the database config with the database I wanted to use in settings.py.
The lesson learned from this is that it is easier to initialize the app from Azure's "Create from gallery" feature, and then pull down the source and modify it via ftp or git to achieve the desired project structure/naming.
I'm building a Django web service that is called from an application. When it throws an exception, I can't see the Django debug page, and can't get to it because the calling application doesn't behave like a web browser (and I don't have control over that application).
Is there a way to redirect the Django error page to a a log file rather than to the calling client, possibly via changing the FastCGI config (I'm using lighty + FastCGI)? Or maybe a "dump to file" config option or some sort of LogExceptionToFile() method within the framework itself?
You might try just creating custom ExceptionMiddleware. Just change the process_exception method to log the exception and request data somewhere.
Here's an example: http://www.peterbe.com/plog/who-was-logged-in-during-a-django-exception
If the exception in the django app is not caught, and DEBUG = True, then the exception should be sent to the client.
Some options to help you get debugging info:
Enable and configure logging
Set up email error reporting
Use something like Wireshark to inspect the HTTP request and responses.