Varnish 3 is out

[rgoytacaz]

Hello There,

First of all, awesome work, I would like to know what do you need to get done to use the new features on varnish 3?

I would gladly help you out on this.

[stefanskotte]

Hi, I'm going to port existing configuration to varnish 3.0, I will share it here once I have it working.

[bkrembs]

Any update on this? Because this project looks like exactly what we need.

I think Varnish 3 support isn't just a technical nicety, but the indication of an active open source project that my projects decision-makers need to see before giving it a try.

I'm new to Varnish, but just like rgoytacaz, I'm definitely willing to help out with the migration!

[stefanskotte]

We recently focused more on magento enterprise, which has FPC builtin. However I will probably revisit later, but for now I have no planned updates.

[rgoytacaz]

I've worked on a working VCL file for Varnish 3. I could share it if you want. I would also love you taking a look on the sessions on memcache problem, or giving out pointers so I can take a look at it.

[stefanskotte]

It would be very interesting to see the vcl - does it work reliably when purging urls from the cache ?

Because i've found the 2.x to keep entries regardless, only thing that works is a restart.

[gionni2010]

hello i don't know how to pull requests on github, but i made modification to the vlc file to make it work on varnish 3.0

My file is here: http://c359372.r72.cf3.rackcdn.com/default.vcl

But i had to comment a variable varnish 3.0 doesn't recognize, you can read the comment on line 137. Someone know if this is a good solution?

Sorry for my english, and thank you!

[ghost]

obj.cacheable became obj.ttl > 0s. it was a piece of cake to convert the original .vcl to a 3.0 compatible one.
Here's my version:

# This is a basic VCL configuration file for varnish. See the vcl(7)
# man page for details on VCL syntax and semantics.
#
# Default backend definition. Set this to point to your content
# server.
#
 backend default {
     .host = "127.0.0.1";
     .port = "80"; # READ THIS: You should configure Apache to run on port 81
 }

acl trusted {
    "127.0.0.1";
    "127.0.1.1";
    "192.168.56.1";
    # Add other ips that are allowed to purge cache
}

#
# http://www.varnish-cache.org/docs/2.1/tutorial/vcl.html#vcl-recv
# @param req Request object
sub vcl_recv {
    if (req.http.x-forwarded-for) {
    set req.http.X-Forwarded-For = req.http.X-Forwarded-For + ", " + client.ip;
    }
    else {
    set req.http.X-Forwarded-For = client.ip;
    }

    if (req.request == "PURGE") {
    # Allow requests from trusted IPs to purge the cache
    if (!client.ip ~ trusted) {
       error 405 "Not allowed.";
    }
    ban("req.url ~ " + req.url);
    error 200 "Ok"; #We don't go to backend
    #return(lookup); # @see vcl_hit
    }

    if (req.request != "GET" &&
       req.request != "HEAD" &&
       req.request != "PUT" &&
       req.request != "POST" &&
       req.request != "TRACE" &&
       req.request != "OPTIONS" &&
       req.request != "DELETE") {
     /* Non-RFC2616 or CONNECT which is weird. */
     return (pipe);
    }

     # Cache only GET or HEAD requests
     if (req.request != "GET" && req.request != "HEAD") {
     /* We only deal with GET and HEAD by default */
     return (pass);
     }

    # parse accept encoding rulesets to normalize
    if (req.http.Accept-Encoding) {
    if (req.http.Accept-Encoding ~ "gzip") {
        set req.http.Accept-Encoding = "gzip";
    } elsif (req.http.Accept-Encoding ~ "deflate") {
        set req.http.Accept-Encoding = "deflate";
    } else {
        # unkown algorithm
        remove req.http.Accept-Encoding;
    }
    }

     # Rules for static files
     if (req.url ~ "\.(jpeg|jpg|png|gif|ico|swf|js|css|gz|rar|txt|bzip|pdf)(\?.*|)$") {
    set req.http.staticmarker = "1";
    unset req.http.Cookie;

    return (lookup);
    }

    # Don't cache pages for Magento Admin
    # FIXME: change this rule if you use custom url in admin
    if (req.url ~ "^/(index.php/)?admin") {
    return(pass);
    }

    # Don't cache checkout/customer pages, product compare
    if (req.url ~ "^/(index.php/)?(checkout|customer|catalog/product_compare|wishlist)") {
    return(pass);
    }

    # Don't cache till session end
    if (req.http.cookie ~ "nocache_stable") {
    return(pass);
    }

    # Unique identifier witch tell Varnish use cache or not
    if (req.http.cookie ~ "nocache") {
    return(pass);
    }

    # Remove cookie
    unset req.http.Cookie;
    set req.http.magicmarker = "1"; #Instruct varnish to remove cache headers received from backend
    return(lookup);
 }


sub vcl_pipe {
# # Note that only the first request to the backend will have
# # X-Forwarded-For set. If you use X-Forwarded-For and want to
# # have it set for all requests, make sure to have:
# # set req.http.connection = "close";
# # here. It is not set by default as it might break some broken web
# # applications, like IIS with NTLM authentication.
     return (pipe);
}

#sub vcl_pass {
# return (pass);
#}

#sub vcl_hash {
# set req.hash += req.url;
# if (req.http.host) {
# set req.hash += req.http.host;
# } else {
# set req.hash += server.ip;
# }
# return (hash);
# }


# Called after a cache lookup if the req. document was found in the cache.
sub vcl_hit {
    if (req.request == "PURGE") {
    ban_url(req.url);
    error 200 "Purged";
    }

    if (!obj.ttl > 0s) {
    return (pass);
    }
    return (deliver);
}

# Called after a cache lookup and odc was not found in cache.
sub vcl_miss {
    if (req.request == "PURGE"){
    error 200 "Not in cache";
    }
    return (fetch);
}

# Called after document was retreived from backend
# @var req Request object.
# @var beresp Backend response (contains HTTP headers from backend)
sub vcl_fetch {
    set req.grace = 30s;

    # Current response should not be cached
    if(beresp.http.Set-Cookie ~ "nocache=1") {
    return (deliver);
    }

    # Flag set when we want to delete cache headers received from backend
    if (req.http.magicmarker){
    unset beresp.http.magicmarker;
    unset beresp.http.Cache-Control;
    unset beresp.http.Expires;
    unset beresp.http.Pragma;
    unset beresp.http.Cache;
    unset beresp.http.Server;
    unset beresp.http.Set-Cookie;
    unset beresp.http.Age;

    # default ttl for pages
    set beresp.ttl = 1d;
    }
    if (req.http.staticmarker) {
    set beresp.ttl = 30d; # static file cache expires in 30 days
    unset beresp.http.staticmarker;
    unset beresp.http.ETag; # Removes Etag in case we have multiple frontends
    }

    return (deliver);
}

# Called after a cached document is delivered to the client.
sub vcl_deliver {
    if (obj.hits > 0) {
    set resp.http.X-Cache = "HIT (" + obj.hits + ")";
    } else {
    set resp.http.X-Cache = "MISS";
    # set resp.http.X-Cache-Hash = obj.http.hash;
    }
    return (deliver);
}
#
# sub vcl_error {
# set obj.http.Content-Type = "text/html; charset=utf-8";
# synthetic {"
# <?xml version="1.0" encoding="utf-8"?>
# <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
# "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
# <html>
# <head>
# <title>"} obj.status " " obj.response {"</title>
# </head>
# <body>
# <h1>Error "} obj.status " " obj.response {"</h1>
# <p>"} obj.response {"</p>
# <h3>Guru Meditation:</h3>
# <p>XID: "} req.xid {"</p>
# <hr>
# <address>
# <a href="http://www.varnish-cache.org/">Varnish cache server</a>
# </address>
# </body>
# </html>
# "};
# return (deliver);
# }

[stefanskotte]

Sounds interesting - will do some testing with that configuration :)

Did anyone manage to solve the nocache=1 not being honored in IE8 ? I have problems when you put products in the cart, and it insists on caching pages you visited previously.

Use case:

1. put product in cart
2. press back in the IE8 browser
3. page will be fetched from cache, and thus the cart contents-block is not updated in the top right.
4. if you refresh the page it works.

Any ideas ?

[0d1]

Same as kevin25.

I don't know if you're still working on it but, I have a magento 1.7.0.2 with varnish 3.0.3 and facing an issue while modifying/changing a product. In fact, I cannot modify a product by having Full page cache in Varnish activated
I got this error :

PHP Fatal error: Call to a member function isActive() on a non-object in /path/to/app/code/community/Magneto/Varnish/Helper/Data.php on line 113, referer: https://www.xxx.com/index.php/mysecretadminpage/cache/index/key/2f08f73fabe13959a24acda3999143ef/
PHP Fatal error: Class 'Mage' not found in /path/to/app/code/core/Mage/Core/functions.php on line 244, referer: https://www.xxx.com/index.php/mysecretadminpage/cache/index/key/2f08f73fabe13959a24acda3999143ef/

the portion of code line 113 is :

    protected function logAdminAction($success=true, $generalInfo=null, $additionalInfo=null, $errors=array()) {
            $eventCode = 'varnish_purge'; // this needs to match the code in logging.xml

            if (!Mage::getSingleton('enterprise_logging/config')->isActive($eventCode, true)) {
                    return;
            }

            $username = null;
            $userId   = null;
            if (Mage::getSingleton('admin/session')->isLoggedIn()) {
                    $userId = Mage::getSingleton('admin/session')->getUser()->getId();
                    $username = Mage::getSingleton('admin/session')->getUser()->getUsername();
            }

Could you please help me to fix it please.
to workaround for the moment is to manually purge by cli en varnish ( really annoying )