Reputation: 15298
Myself and my users are often running into a Cloudflare Bad Gateway 502 error
. Trying to figure out what goes wrong is hard, because Cloudflare blames the hosting company and the hosting company blames Cloudflare. A typical situation when using Cloudflare.
What I noticed is that nothing actually fails. The host receives the request and is handling the request just fine but which sometimes takes a bit longer than usual to complete. But Cloudflare can't wait and instead throws a Bad Gateway
error, while the script is actually still running.
I've noticed this behavior when performing heavy back-end tasks (like generating +50 PDFs). My users notice this when they try to upload an image (which often starts a re-sizing task).
Is there a way I can configure my server so that Cloudflare knows that the request is still being processed? Or should I just ditch Cloudflare overall?
Upvotes: 9
Views: 20387
Reputation: 1
I have researched on this error very deeply and what I found the result https://modernbreeze.in/error-502-bad-gateway-cloudflare-how-to-fix-in-wordpress/ I noted down in the above blog post. Please read and let me know if it's solved or not.
Upvotes: 0
Reputation: 11
I've gone through this error for quite a long time, Cloudflare support wasn't able to guide me. To solve this I tried multiple tweaks and tricks. the successful one was changing your https to HTTP in your database > wp_option. for example :
Upvotes: 1
Reputation: 15298
The culprit was Railgun. After disabling Railgun (in Cloudflare's control panel) the Bad Gateway 502
errors immediately disappeared.
Upvotes: 9