Hello all, varnish tells me that the TTL is smaller or equal to 0, but
looking at the response headers that is not the case as the BerespHeader
has Expires: Wed, 27 Sep 2023 12:23:11 GMT which is in 2023!
This is the part of the log.
- Begin bereq 8203147 pass
- VCL_use boot
- Timestamp Start: 1664281391.802802 0.000000 0.000000
- BereqMethod GET
- BereqURL /wp-content/plugins/canvas/assets/fonts/canvas-icons.woff
- BereqProtocol HTTP/1.1
- BereqHeader Host: www.site.nl
- BereqHeader X-Forwarded-Proto: https
- BereqHeader Origin: https://www.site.nl
- BereqHeader Accept: */*
- BereqHeader User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_6_1
like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19G82
[FBAN/FBIOS;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/15.6.1;FBSS/2;FBID/phone;FBLC/nl_NL;FBOP/5]
- BereqHeader Accept-Language: nl-NL,nl;q=0.9
- BereqHeader Referer: https://www.site.nl/url
- BereqHeader Accept-Encoding: gzip, deflate, br
- BereqHeader X-forwarded-for: 123.123.123.1
- BereqHeader Cookie: _sharedid=redacted; cto_bundle=redacted
- BereqHeader X-Varnish-Nocache-Recv: Got request cookie
(_sharedid=redacted; cto_bundle=redacted
- BereqHeader X-Varnish: 8203148
- VCL_call BACKEND_FETCH
- VCL_return fetch
- BackendOpen 47 default 127.0.0.1 8080 127.0.0.1 48076
- BackendStart 127.0.0.1 8080
- Timestamp Bereq: 1664281391.802852 0.000050 0.000050
- Timestamp Beresp: 1664281391.802989 0.000186 0.000137
- BerespProtocol HTTP/1.1
- BerespStatus 200
- BerespReason OK
- BerespHeader Server: nginx
- BerespHeader Date: Tue, 27 Sep 2022 12:23:11 GMT
- BerespHeader Content-Type: application/font-woff
- BerespHeader Content-Length: 4316
- BerespHeader Last-Modified: Tue, 06 Sep 2022 23:45:48 GMT
- BerespHeader Connection: keep-alive
- BerespHeader ETag: "6317dbac-10dc"
- BerespHeader Expires: Wed, 27 Sep 2023 12:23:11 GMT
- BerespHeader Cache-Control: max-age=31536000
- BerespHeader Accept-Ranges: bytes
- VCL_call BACKEND_RESPONSE
- BerespHeader X-Req-Host: www.site.nl
- BerespHeader X-Req-URL:
/wp-content/plugins/canvas/assets/fonts/canvas-icons.woff
- BerespHeader X-Req-URL-Base:
/wp-content/plugins/canvas/assets/fonts/canvas-icons.woff
- BerespHeader X-Varnish-Nocache-Beresp: TTL <= 0s
- TTL VCL 120 0 0 1664281392 uncacheable
- TTL VCL 120 0 0 1664281392 uncacheable
- BerespHeader X-Varnish-TTL: 120.000
- BerespHeader X-Varnish-Backend: default
- VCL_return deliver
The config from the vcl backend_responce is as follows, this sets the
X-Varnish-Nocache-Beresp header.
sub vcl_backend_response {
if (beresp.ttl <= 0s || beresp.http.Set-Cookie ||
beresp.http.Surrogate-control ~ "no-store" ||
(!beresp.http.Surrogate-Control && beresp.http.Cache-Control ~
"no-cache|no-store|private") ||
beresp.http.Vary == "*") {
# DEBUG INFORMATION - DOES NOT INFLUENCE CACHING #
if (beresp.ttl <= 0s) {
if (beresp.http.X-Varnish-Nocache-Beresp) {
set beresp.http.X-Varnish-Nocache-Beresp =
beresp.http.X-Varnish-Nocache-Beresp + ", TTL <= 0s";
}
else {
set beresp.http.X-Varnish-Nocache-Beresp = "TTL <= 0s";
}
}
if(beresp.http.Set-Cookie) {
if (beresp.http.X-Varnish-Nocache-Beresp) {
set beresp.http.X-Varnish-Nocache-Beresp =
beresp.http.X-Varnish-Nocache-Beresp + ", got response cookie (" +
beresp.http.Set-Cookie + ")" ;
}
else {
set beresp.http.X-Varnish-Nocache-Beresp = "Response
cookie (" + beresp.http.Set-Cookie + ")";
}
}
if (beresp.http.Surrogate-control ~ "no-store" ||
(!beresp.http.Surrogate-Control && beresp.http.Cache-Control ~
"no-cache|no-store|private")) {
if (beresp.http.X-Varnish-Nocache-Beresp) {
set beresp.http.X-Varnish-Nocache-Beresp =
beresp.http.X-Varnish-Nocache-Beresp + ", got no-cache|no-store|private";
}
else {
set beresp.http.X-Varnish-Nocache-Beresp = "Got
no-cache|no-store|private";
}
}
# DEBUG INFORMATION - DOES NOT INFLUENCE CACHING #
/*
* Mark as "Hit-For-Pass" for the next 2 minutes
*/
set beresp.ttl = 120s;
set beresp.uncacheable = true;
}
Am i right that the TTL is <=0 because it sends a cookie to the backend?
Thank you for your time!
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