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Questions tagged [http-status-code-503]

503 is one of the status codes a web server can return to a client application when processing a request. 503 is defined as Service Unavailable

503 Service Unavailable. The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. The implication is that this is a temporary condition which will be alleviated after some delay. If known, the length of the delay may be indicated in a Retry-After header. If no Retry-After is given, the client should handle the response as it would for a 500 response.

Note:

The existence of the 503 status code does not imply that a server must use it when becoming overloaded. Some servers may wish to simply refuse the connection.

Related tags

See also RFC2616.

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Axios API calls are not working after deploying the web application on Heroku - MERN Application

Before uploading my code to Heroku, my API calls worked just fine. However, it returns a status code of 503 (Service Unavailable) after deployment. This is my code app.js file in my root folder (server file) mongoose.connect(process.env.MONGO_URI, {…
Leji Kedus -_-
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HAproxy - When does a backend throw an 50x error?

I've setup a backend with a bunch of servers as well as backup servers like that: backend mode http option allbackups balance roundrobin option http-server-close option httpclose server :80 check inter…
Pegasus1985
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Some error while submit form with empty field in PHP , Codeigniter

I am using Codeigniter framework. My issue is:- when I submit my booking form its shows me 503 service unavailable page if form fields are empty. If all form fields have value then form is success fully submitting.
Yadhu Babu
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503 error from Google Books API when accessed from EC2

On my Amazon EC2 instance: ~$ curl -XGET https://www.googleapis.com/books/v1/volumes?q=Mark+Twain { "error": { "errors": [ { "domain": "global", "reason": "unknownLocation", "message": "Cannot determine user location." } ], …
Chase
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503 Service Unavailable error after PHP upgrade

After upgrading PHP to version 7.4, I get the following error: Service Unavailable The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later. Additionally, a 503 Service…
Mark
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Heroku "Connection closed without response" H13 with golang after http 503

I am really hitting something I don't understand here and would really love some help! Appreciated. Basically, I have a Heroku app running a basic go server s := &http.Server{ Addr: ":" + Port, Handler: handler } err :=…
Paul Vidal
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Django - how to NOT receive email error reports for HTTP 503 status code?

I configured Error Reporting for my django app so it will send an report by email to those who i specified in ADMINS list in settings.py (see this). it works perfectly well. Based on official django documentation, it will trigger whenever a HTTP 500…
Omid Adib
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Error 503 when calling API from Heroku (PostgreSQL)

The Api is working good in development but then at Heroku is not and I get 503 Service Unavailable. I was looking the logs but couldn't figure out anything. I think that the problem is with the connection with the database but I don't know. I can…
Vasil
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Scrapy crawler on Heroku returning 503 Service Unavailable

I have a scrapy crawler that scrapes data off a website and uploads the scraped data to a remote MongoDB server. I wanted to host it on heroku to scrape automatically for a long time. I am using scrapy-user-agents to rotate between different user…
Puneet Shrivas
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Receiving 503 server busy error code when setting up python on cpanel

Please note that if I could find any other answer I would have not posted this question! I'm currently in a difficult situation. On Cpanel there is a service called "Setup Python App" I followed multiple online tutorials on setting up. When setting…
ClarkeFL
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Regex specific question and search function on my website dealing with broken links

I've been trying to figure out my regex pattern but it doesn't seem to be working for me. Here's what i'm trying to do: I have broken links on my website if someone accidentally gets to a page like…
Singleton
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Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9074 (*) failed

I'm using multiple versions of PHP (7.2 and 7.4) in Mac OS. So I use PHP-fpm to work with 7.4 version. few weeks before I went very well but now I got an error like 503 Service Unavailable The server is temporarily unable to service your request…
Jithin Vijayan
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How do I fix Heroku h12/503 timeout error

I'm running into a weird issue with my MERN app in Heroku. When I run my application locally it fetches all my requests under 1 second but on Heroku, I get h12/503 errors because it is taking 30 seconds which results in timeout errors. I understand…
Andrew Est
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Getting 503 while fetching topicDetails from channels list of youtube data api v3

Im getting a 503 - backend error while fetching topicDetails from the channels api from the browser. Without topicDetails it works as expected. What am I…
user2074862
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Testing for redirects in Perl

I was hoping to check for webpage redirects using Perl. I've tried using LWP but it only catches 503 redirects and not htaccess redirects or Javascript redirects. Any help would be greatly appreciated. Thanks
frankiej
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