How to make multiple clients can get the response at the same time by stream.

[Per Buer]

Hi.

On Tue, Jan 29, 2013 at 1:13 PM, Jakub Słociński <kuba at ovh.net> wrote:

> Hi Xianzhe Wang,
> you should try option
> "set req.hash_ignore_busy = true;"
> in vlc_recv.
>

No. This won't work.

Plain vanilla varnish doesn't support streaming properly. You should use
the "plus" branch of Varnish if you need it.





>
> Regards,
> --
> Jakub S.
>
>
> Xianzhe Wang napisał(a):
> > Hello everyone,
> >     My varnish version is 3.0.2-streaming release.And I set
> > "beresp.do_stream  = true" in vcl_fetch in order to "Deliver the object
> to
> > the client directly without fetching the whole object into varnish";
> >
> > This is a part of my *.vcl file:
> >
> >  sub vcl_fetch {
> >     set beresp.grace = 30m;
> >
> >     set beresp.do_stream = true;
> >
> >     if (beresp.http.Content-Length && beresp.http.Content-Length ~
> > "[0-9]{8,}") {
> >        return (hit_for_pass);
> >     }
> >
> >      if (beresp.http.Pragma ~ "no-cache" || beresp.http.Cache-Control ~
> > "no-cache" || beresp.http.Cache-Control ~ "private") {
> >            return (hit_for_pass);
> >        }
> >
> >      if (beresp.ttl <= 0s ||
> >          beresp.http.Set-Cookie ||
> >          beresp.http.Vary == "*") {
> >
> >                 set beresp.ttl = 120 s;
> >                 return (hit_for_pass);
> >      }
> >
> >     return (deliver);
> >  }
> >
> > Then I request a big file(about 100M+) like "xxx.zip" from clients.There
> is
> > only one client can access the object.because "the object will marked as
> > busy as it is delivered."
> >
> > But if  the request goes directly to “pass” ,multiple clients can get the
> > response at the same time.
> >
> > Also if I remove
> >   if (beresp.http.Content-Length && beresp.http.Content-Length ~
> > "[0-9]{8,}") {
> >        return (hit_for_pass);
> >     }
> > to make the file cacheable,multiple clients can get the response at the
> > same time.
> >
> > Now I want "multiple clients can get the response at the same time." in
> all
> > situations("pass","hit","hit_for_pass").
> >
> > What can I do for it?
> > Any suggestions  will be appreciate.
> > Thank you.
> >
> >  -Shawn Wang
>
> > _______________________________________________
> > varnish-misc mailing list
> > varnish-misc at varnish-cache.org
> > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>
>
> _______________________________________________
> varnish-misc mailing list
> varnish-misc at varnish-cache.org
> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc




-- 
 <http://www.varnish-software.com/> *Per Buer*
CEO | Varnish Software AS
Phone: +47 958 39 117 | Skype: per.buer
We Make Websites Fly!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.varnish-cache.org/lists/pipermail/varnish-misc/attachments/20130129/9eb70799/attachment.html>