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What causes http 502 and http 503 service unavailable errors?


Asked by Jeremiah Davenport on Dec 05, 2021 HTTP



Alternatively, you can also file an Azure support incident. Go to the Azure Support site and click on Get Support. Symptom. When you browse to the app, it returns a HTTP "502 Bad Gateway" error or a HTTP "503 Service Unavailable" error. Cause. This problem is often caused by application level issues, such as: requests taking a long time
In addition,
Getting more traffic than your site was built to handle, almost always triggers a 503. However, the 503 error could also be a result of a malicious denial of service (DoS) attack.
Also, A 503 Service Unavailable Error is an HTTP response status code indicating that a server is temporarily unable to handle the request. This may be due to the server being overloaded or down for maintenance.
And,
The 503 Service Unavailable error is a server-side error, meaning the problem is usually with the website's server. It's possible that your computer is having some kind of problem that's causing the 503 error but it's not likely.
Thereof,
The 503 Service Unavailable error is an HTTP status code that means the website's server is simply not available right now. Most of the time, it occurs because the server is too busy or because there's maintenance being performed on it.