Hi,
We have been using Varnish for caching our web pages. We have an
ecommerce site. Things have been working fine till today but suddenly
things have started breaking down and I am not sure why. Following is
the issue:
We use session cookie to store user sessions. The session cookie is
getting changed as Cached responses from varnish is having set-cookie
header which is messing up the session cookie. We are using varnish 4.8.
Following is a snippet of the VCL:
sub vcl_recv {
# Happens before we check if we have this in cache already.
#
# Typically you clean up the request here, removing cookies you
don't need,
# rewriting the request, etc.
set req.backend_hint = uwsgi;
#if (req.http.cookie ~ "jivaana_country=") {
# Set the country header
# set req.http.X-CLIENT-COUNTRY = regsub(req.http.cookie,
".*jivaana_country=([^;]+);.*", "\1");
# }
std.log("ga:" + ga.extract(req.url, mode = keep));
set req.url = ga.apply(req.url); # remove Google Analytics parameters
if (req.method == "GET") {
if ((req.url !~ "^/accounts/userheader") &&
(req.url !~ "^/accounts/new-userheader") &&
(req.url !~ "^/product/recently-viewed") &&
(req.url !~ "^/product/recommended-products") &&
(req.url !~ "^/product/addtobasket")) {
unset req.http.cookie; # strip the cookies - we don't
need them
}
}
call devicedetect;
}
sub vcl_backend_response {
# Happens after we have read the response headers from the backend.
#
# Here you clean the response headers, removing silly Set-Cookie
headers
# and other mistakes your backend does.
if (bereq.method == "GET") {
set beresp.do_esi = true;
if ((bereq.url !~ "^/accounts/userheader") &&
(bereq.url !~ "^/accounts/new-userheader") &&
(bereq.url !~ "^/product/recently-viewed") &&
(bereq.url !~ "^/product/recommended-products") &&
(bereq.url !~ "^/product/addtobasket")) {
#unset beresp.http.Set-Cookie;
set beresp.uncacheable = false;
#std.log("Caching the url : **********************" +
bereq.url);
}
}
sub vcl_deliver {
# Happens when we have all the pieces we need, and are about to
send the
# response to the client.
#
# You can do accounting or modifying the final object here.
}
sub vcl_hash {
}
Would really appreciate any support as this is messing up our user sessions.
Thanks,
Pinakee
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