What response code Apache throws when it max out?

Question

I use Apache 2.4 as web server. When it exceeds max connections limit, what response code the client receives from the web server?

Nitin Dhomse · Accepted Answer · 2018-03-30 08:06:59Z

1

Apache throws 504 status code response to client.

504 GATEWAY TIMEOUT

The server, while acting as a gateway or proxy, did not receive a timely response from an upstream server it needed to access in order to complete the request.

answered Mar 30, 2018 at 8:06

Nitin Dhomse

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3 Comments

Tanu Gupta Over a year ago

Thanks Nitin. I receive status code 502 when my requests are not able to hit Apache. What could be the possible cause of getting 502?

Nitin Dhomse Over a year ago

provide the complete message with status code, timeout or proxy

Tanu Gupta Over a year ago

I receive below 502 errors on proxy server: 1. "upstream prematurely closed connection while reading response header from upstream," 2. "upstream timed out (110: Connection timed out) while connecting to upstream"

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