Stack Overflow
Stack Overflow

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.

535 questions
1
vote
0 answers

error 503 ERROR_COULD_NOT_CONNECT_TO_REMOTESVC while deploying to Appservice

Deploying to: Azure App Service Deployment method: webdeploy Deploying: WebJob App service : Available & started Deployment status: Files are added/deployed into the azure app service. Solution: Retrigger the deployment after 2 mins. It does…
Amaresh
  • 31
  • 3
1
vote
0 answers

Is There A Way To Fix This Cors Error On Heroku

I have a full stack app but when I uploaded my backend to heroku, on browsers cors policy is blocking my API routes. I get the error No ‘Access-Control-Allow-Origin’ header is present on the requested resource.) on heroku I get a 503 error for the…
Bqdor
  • 19
  • 5
1
vote
2 answers

.NET 6 webapp returns 503 error on random intervals

I published a simple .NET 6.0 web app with user authentication on my IIS 10.0 web server hosted on Azure. The application read and write data from a SQL Server 2017 database hosted on another machine on the same virtual network of the web…
Claudio Zocca
  • 11
  • 3
1
vote
1 answer

Node.js cors origins from app deployed on heroku

I've deployed my node.js app on heroku and now I'm trying to connect to this from my localhost:3000, but I've got this error: Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource…
user17880509
  • 71
  • 9
1
vote
0 answers

Unable to solve 503 error for POST Request (express)

Whenever my frontend (React) runs at localhost:3000 and my backend (express) runs locally on localhost:8282, I get a 503 error and am able to see expected results. My fronten has been deployed at netlify and backend in heroku. I run into cors error…
Hritik Arya
  • 11
  • 2
1
vote
1 answer

HTTP Error 503, the service is unavailable Azure Virtual machine

I have created one Azure Virtual machine and installed all the IIS related roles and features. After that I have created one Website in IIS. I have given all the needed permissions to "Physical Path" and also configures https bindings. The website…
Parth Patel
  • 11
  • 1
1
vote
1 answer

Only download a certain amount of files per second - "decrease" the download speed

It appears to me that my server only allows 60 files to be downloaded per second, but I have 63 of them - all tiny, YAML files. As a result, the last 3 files don't get downloaded and throw error 503. I am using Baeldung's NIO example: public static…
jam berry
  • 25
  • 5
1
vote
0 answers

S3 503 Errors on Safari that do not replicate on other browsers

I've been getting 503 SLOW DOWN errors when posting using presigned URLs to s3. Specifically, I generate ~10 presigned URLs in my backend, pass them to the client, and upload 10 images using those presigned URLs. On Chrome or Firefox, these POST…
theahura
  • 353
  • 2
  • 19
1
vote
0 answers

503 Service Unavailable error in AWS ec2 instance without load balancer

I'm pretty new to AWS. I have created an instance of ec2 and separate RDS. I have deploy my code. Sometimes I'm getting 503 error Service Unavailable (The server is temporarily unable to service your request due to maintenance downtime or capacity…
Tech Leadz
  • 49
  • 4
1
vote
1 answer

Microsoft Graph 503 service unavailable

I try to use the Microsoft graph api with Postman app, When i execute this query : the api works and return me the good response : But when I try to execute the query to have my to do lists I have a 503 error : Is anyone knows how to resolve it…
Christopher Lessirard
  • 23
  • 3
1
vote
0 answers

API throwing 503 service unavailable error occasionally and not continuously

I am getting error with status code 503 - Service Unavailable in my OPTIONS request to API Gateway in AWS (Screenshot attached below) Our Tech Stack: API Gateway to route requests to proper docker container(s) residing inside EC2 instance running…
Anuj Panchal
  • 391
  • 3
  • 15
1
vote
1 answer

PHPMailer: Working on localhost, stuck after clicking "submit" button on the domain, gives Error 503, E-Mail arrives after 4mins

So I've been trying now for two days to get rid of this problem. As mentioned, the code works perfectly fine on my xampp apache localhost. The Email is send immediately. However, on the domain which I have, once I press submit, it just loads and…
Dark Schneider
  • 13
  • 2
1
vote
0 answers

Cors: No 'Access-Control-Allow-Origin' header is present on the requested resource. Error happening only on requests of high resources

I only get the error when i try to make a GET of good chunk of data from yahoofinance, when i do small requests it works good. The front is a react deployed on Vercel, and the backend is flask deployed on Heroku. This is what im doing: Flask…
Joa0
  • 69
  • 9
1
vote
0 answers

Why Heroku throws 503 error , when my node app trying to connect with MongoDB Atlas?

enter image description here 2021-11-20T11:44:40.554636+00:00 heroku[router]: at=error code=H12 desc="Request timeout" method=GET path="/admin" host=log-store-api.herokuapp.com request_id=f5c13cb1-3e75-4767-8c41-9abd02dcfded fwd="47.11.229.75"…
Deep Hansda
  • 11
  • 1
1
vote
0 answers

Getting this xampp error message when trying to run only a certain file on local site

I'm using an XAMPP Apache server and every time I go onto this specific page on my local/test site it comes up with this error message: 503 Service Unavailable error message Things I've done to try and fix the issue: I've tried restarting…
user17306386
1 2 3
…
35 36