[squid-users] HIER_NONE on TCP_MISS?

bump skier bumpski3r at gmail.com
Tue Jun 27 17:52:07 UTC 2017


Hmm. I don't have ICAP/eCAP or collapsed forwarding configured. Are there
any situations where something similar to collapsed forwarding can happen
by default?

On Tue, Jun 27, 2017 at 11:55 AM Amos Jeffries <squid3 at treenet.co.nz> wrote:

> On 27/06/17 15:28, bump skier wrote:
> > Hi,
> >
> > I'm trying to understand the following behavior I'm seeing with Squid
> > running in accelerator mode. In short, I'm seeing some TCP_MISS for
> > requests to a static javascript file which is initially cached and
> > returned as a cache hit. I suspect the missed cache hits are due to the
> > cache size being too small and the file eventually getting evicted.
> > However, I'm confused about what I'm seeing in the Squid access log. For
> > some of the cache misses I can see in the access log that Squid fetches
> > the file from the configured origin server but for a vast majority of
> > them I see HIER_NONE even though Squid is actually returning the file.
> >
> > Under what situations would Squid fetch content from the origin server
> > during a cache miss but print HIER_NONE?
>
>
> It may happen if you have content adaptation (ICAP/eCAP) providing a
> response instead of either cache or origin server.
>
> Maybe also if the collapsed forwarding feature is in use. AFAIK, we have
> not got the log entries quite right there yet.
>
> Amos
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