why i get response if it is a post request with pass?

יעקב ירמולובסקי yakov.yarmo at gmail.com
Mon Dec 28 12:09:12 CET 2015


is there any other variable that controls the 5 seconds disconnection from
varnish?
Is it possible that there is a bug in varnish that ignores
first_byte_timeout?

On Mon, Dec 28, 2015 at 12:57 PM, Geoff Simmons <geoff at uplex.de> wrote:

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> On 12/28/15 11:30 AM, יעקב ירמולובסקי wrote:
> > But if I have the following in my vcl file: .first_byte_timeout =
> > 600s; .between_bytes_timeout = 600s;
> >
> > Doesn't varnish suppose to respect it?
>
> In that case it wasn't a first byte timeout. Possibly something is
> causing a network disconnect if there is no activity for 5 seconds.
> That could be something in your Apache config, or for example a
> network device such as a firewall.
>
> Some advice: don't set your Varnish timeouts to 10 minutes, that's
> astronomical, and will very likely be counterproductive. This is a
> typical point of contention between backend app developers and the
> Varnish admin -- if the apps get slow, they'll want Varnish to "wait
> forever". But if the apps take that long, one of your Varnish worker
> threads is blocked for up to 10 minutes. If the app is in serious
> trouble so that it takes that long for all requests, all of those
> threads will block, and eventually you'll hit the worker thread
> maximum and Varnish will start refusing connections. No amount of
> increasing the thread pool can save you when the timeouts are that long.
>
> If the apps are that slow, you have a catastrophe no matter what
> happens, and you're better off having Varnish time out within a few
> seconds, so that at least Varnish remains stable. And the developers
> will have to bite the bullet and fix the app.
>
> > Where can I see how long the apache took to respond?
>
> The Apache mod_log_config module has formatters for that, for use in
> the LogFormat directive; but that's no longer a Varnish question.
>
> The varnishlog ReqEnd record will tell you how long Varnish waited,
> look here:
>
> https://www.varnish-cache.org/trac/wiki/Varnishlog
>
>
> Best,
> Geoff
> - --
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> Scheffelstraße 32
> 22301 Hamburg
> http://uplex.de/
> Mob: +49-176-63690917
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