Keywords: Magento - AWS - Technical issue - Other
Hello everyone, thank you for looking into this issue.
I am facing this issue:
Error 503 Backend fetch failed
Backend fetch failed
Varnish cache server
before this issue site was working fine,
HOW THIS ISSUE OCCUR:
I disabled all the cache inside Magento 2 and my website went down at that, then I try to restart varnish via SSH, but it didn't help, try to enable all caches again via bin/magento-cli, but it also didn't work and site was stuck there.
I am trying a fix of, http_resp_hdr_len for varnish configuration, but I don't know where the varnish configuration file is located.
need help urgent.