I am a student who is studying the development of django.
I have a question about 404 and 500 errors.
I handle 404,500 error as 404.html and 500.html respectively.
So, is there a difference between these two error events?
For example,
def example_post_404(request, pk):
get_object_or_404(Post, id=pk) # code that may occur 404 error
vs
def example_post_500(request, pk):
Post.objects.get(id=pk) # code that may occur 500 error
Did 500 error event put more pressure on the server than 404 error event?
Which code is more desirable?
My code is running on AWS EC2 ubuntu-16.04
The difference between any 400 error versus a 500 error is based on whether it is the fault of the client or the server that the request was not parsed.
for instance, a 404 error means the object was not found; what does this mean? it means that based on what the client was asking for, the server could not return a result.
another example, a 503 Service Unavailable; the server recieved the reponse, and although the client request is valid the server was unable to provide the response.
That is the difference between a 4XX error and a 5XX error, if you'd like more detailed information on what to respond with when an error occurs, please refer to the HTTP documentation:
https://www.rfc-editor.org/rfc/rfc2616
404 is page not found
500 is an internal system error
If a user requested a page/url that does not exist, return 404. If something happens to your system (like a bug, an unexpected error), return 500.
404 Error is Page not found to url calling.
500 is an internal error for our system(like Django un-authenticate user access)
I'm getting this error when running a SEO audition tool
I would need to produce something similar to:
Instead of 404 my error page has a 200 status.
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.
I have created a Django project but I am using Apache as the webserver. Can anyone tell me how can I redirect an error code like 404 or 500 or 400 to a custom error html page instead of getting a standard error message on page in case an error was to occur ?
Just create custom 404.html, 400.html and 500.html inside templates directory. Now these custom error pages will be rendered whenever error occurs.
After enrolling a device and going to the Device Location tab I get the following errors and it shows a blank grey box where the map should be. I did not had this with EMM 2.2.0.
Failed to load resource: the server responded with a status of 400 (Bad Request)
https://172.16.21.73:9443/devicemgt/api/invoker/execute/
combined.js:5094 Uncaught TypeError: Cannot read property 'lat' of undefined
at loadLeafletMap (combined.js:5094)
at HTMLLIElement. (combined.js:5120)
at HTMLLIElement.dispatch (jquery-1.11.3.min.js:4)
at HTMLLIElement.r.handle (jquery-1.11.3.min.js:4)