invalidating a page using ruby

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just call "varnishadm" with the ban command you need from ruby under the
system() call

system("varnishadm -T somehost:6082 ban.url /images")



On Thu, Mar 1, 2012 at 3:48 AM, Per Buer <perbu at varnish-software.com> wrote:

> Hi,
>
> On Wed, Feb 29, 2012 at 11:27 PM, S Ahmed <sahmed1020 at gmail.com> wrote:
>
>> How would you go about invalidating a cache with ruby?
>
>
> You either use HTTP PURGE against Varnish or issue a ban. See the tutorial
> for details.
>
> Also, from what I understand varnish doesn't support clustering.  What if
>> you grow past a single server, do you somehow use a hashing algorithm to
>> choose which server will have the cached page?  (if yes, then at what layer
>> will this hashing be done?)
>>
>
> You can either use Varnish as a load balancer (it is rather good at load
> balancing) use the hash director or any other load balancer  that supports
> "URL target" hashing.
>
> --
> Per Buer, CEO
> Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 / Skype: per.buer
> *Varnish makes websites fly!*
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>
>
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