I am new to NameCheap and I need help deploying a Django application. I just tried installing python on Namecheap's Cpanel using Python 3.7.12 with the desired Application URL, but I get the Error 503. Service Unavailable when I visit the Application URL after creating the python app. From the resources I have seen, I am supposed to get a python signification that the python app works and not an error. Thanks in advance.
python app setup on Namecheap's Cpanel
error page when i visit the application's Url
In my experience, Why does it appear?
The Webserver is currently unable to handle the HTTP request due to a temporary overloading or maintenance of the server.
Also among reasons can be:
inodes/disk overusage
irrelevant php.ini/htaccess directives
incorrect PHP version used
lack of memory
Solution:
Switch PHP versions;
Check disk space and inodes usage, etc.;
Check error logs and the latest error messages to find which script, plugin, etc. causes the issue;
ensure the server is up and running.
Related
I’ve recently tested and deployed a flask app as the minusthemiddleman website. All of the functions tested and worked in the sandbox by multiple testing methods before deployment to nginx and uwsgi in production. For some reason page 2 of the search function causes a resource problem in app as deployed. I’ve had a chance to monitor the redis directly using $redis-cli monitor and check my pip list to make everything is installed in production correctly.
The specific error is:
Internal Server Error
The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.
Does anybody have ideas as to why this is malfunctioning? Thanks,
I have deployed NLP project on Heroku server. If I am going to test the webapp by entering the fields, then I get INTERNAL SERVER ERROR:
The server encountered an internal error and was unable to complete your request.
Either the server is overloaded or there is an error in the application.
This app is successfully running on localhost. I don't know what happens after deployment.
Can anyone help?
Here is the screen shot of build
[
Here is the code of app.py file
This is the code of spam_classifier.py
These are requirements which I put on requirements.txt
It seems like your build got successfully deployed but you are getting the internal server error while you are consuming the API.So you will have to check the application log instead of the build log. To see that, in the heroku dashboard go to more>>logs. For every request that you make, you will be able to see the logs and hence the runtime errors if there are any.
Few other suggestions
You don't need spam_classifier.py in your file system on the deployed environment as you are loading the trained model from the pickle file.
Make sure that you have pushed the pickle files along with the code. I suggest that you use amazon s3 to store and load those kind of files
If you check the Application Logs in heroku you will find this error "Error R14 (Memory quota exceeded)" due to which you are getting the Internal Server Error after deploying the project on Heroku.
I am setting up a test server at home. The web app is built with flask and python 3.6. For setting up the web server with nginx and gunicorn I followed the guide Real Python Tutorial. This use supervisor for the final management engine.
The problem is I don't know where to start looking to find the cause of my issue. The app has a file upload form which when submitted gets 502 bad gateway if the server is start with supervisor. But if you start gunicorn directly the app works with no issues and uploads the files as expected.
Any help on how to debug this would be great. I don't know what information to share so just ask and I will get what ever you if I can. The server is Ubuntu 16.04.
I spent some days with a similar issue, but with a Django app. Basically, the Bad Gateway problems with Nginx have to do with permission issues for the connection between Nginx and Gunicorn. I suggest you look at your nginx.conf file, and check the user used. The user must be the one that administrates the system (have the necessary permisions for executing/reading). Also, check that you include the configuration files contained in sites-enabled/ (in my case I don't have this directory, but directly overwrote the nginx.conf file). Then, check that you have the #proxy_to_app, location / , and upstream blocks like explained here https://rukbottoland.com/blog/django-gunicorn-nginx-supervisor/
Hope this helps!
Tip: check the nginx logs at /var/log/nginx/ for any error message. That helps debugging.
I have three different python flask apps hosted on Apache using WSGI Flup webserver over FastCGI.
I am able to access all of the apps without any issues using any non-microsoft browser. Out of the three apps, two are just for services and return only json data while the third app houses our website. All the three apps are SSL enabled and can be accessed only through SSL.
The problem I am facing is that any version of Microsoft edge or IE is unable to open the flask app which serves the website, at all.
The error that I am getting in IE says that it is a DNS error. When I checked my Apache access logs, I found out that the hit by IE or edge is not even logged there. The logs appear though when I hit my other two JSON data returning flask apps through microsoft browsers.
The two apps which return only JSON data are working flawlessly in the Microsoft browsers as well as they are working in Chrome, Safari etc.
What can be the reason for the microsoft browsers to not be able to access only one flask app but render the other two over SSL considering that all is fine when the same is accessed through any other browser?
Any kind of help would be greatly appreciated. Thanks a lot.
P.S. - I have checked the settings of all the three flask apps, and all the three are configured in the same manner without any discrepancies.
Found that the problem was with favicon.ico file. Microsoft's browsers including Edge actively look for it on the server or web app root folder, and in case it doesn't exist, they simply refuse to display the page without giving out a proper error message.
The problem was solved by adding the favicon file through the method mentioned here: http://flask.pocoo.org/docs/0.10/patterns/favicon/
I'm trying to create a KhanAcademy (KA) clone on Google App Engine (GAE). I downloaded the offline version of KA (http://code.google.com/p/khanacademy/downloads/list) for Mac, and set it up with GoogleAppEngineLauncher (https://developers.google.com/appengine/). Because KA was produced on Python 2.5, I have the setup running through the Python 2.5 included in the KA offline version download, and I added these extra flags to the app (to essentially duplicate the functionality of the included Run file):
--datastore_path=/Users/Tadas/KhanAcademy/code/datastore --use_sqlite
As is, GAELauncher is able to get that up and running perfectly fine on a localhost. However, to get it up on my Google appspot domain, I need to change the application name in app.yaml. When I change "application: khan-academy" in app.yaml to a new name and try to run the local version via GAELauncher (or the included Run file), the site comes up but all the content (exercises, etc.) has disappeared (essentially, the site loses most of its functionality). If I try to "Deploy" the app in this state, I received a 500 Server Error when I try to go on the appspot website. Any ideas as to what could be going wrong?
Thanks.
The problem is that your 'clone' application does not have access to Khans Academy's AppEngine datastore so there is no content to display. Even if you do use all of the code for their application, you are still going to have to generate all of your own content.
Even if you are planning to 'clone' their content, too, you are going to have to do a lot of probably manual work to get it in to your application's datastore.