Hello All,
We have configured varnish in such a way that if one of the backend
returns *404
code*, varnish retries the request on another healthy backend.
Varnish version: varnish-6.0.11
*Sample Configuration (default.vcl):*
sub *vcl_backend_response *{
if (beresp.status == 404 {
return(retry);
}
}
But in some cases, varnish retry is not happening as expected.
Upon analysis we have found the only difference in requests is *payload*
*Examples:Request Pattern-1:*
/GET
Request URL
HTTP Protocol
Request Headers
*Request-Pattern-2:*
/GET
Request URL
HTTP Protocol
Request Headers
*payload*
Please help us understand if there are any scenarios where varnish retries
won't happen.
*Thanks & Regards,*
*Uday Kumar*
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