AW: [squid-users] Vary object loop

Thanks, so nothing to worry about.

Kind regards Marc

-----Ursprüngliche Nachricht-----
Von: Amos Jeffries [mailto:squid3_at_treenet.co.nz]
Gesendet: Dienstag, 15. Oktober 2013 04:03
An: squid-users_at_squid-cache.org
Betreff: Re: [squid-users] Vary object loop

On 15/10/2013 1:08 a.m., Grooz, Marc (regio iT) wrote:
> Hi,
>
> what does that message mean in squid 3.3.9?
>
> varyEvaluateMatch: Oops. Not a Vary object on second attempt, 'http://...' 'accept-encoding="identity,gzip,deflate"'
> clientProcessHit: Vary object loop!
>
> Kind regrads
>
> Marc

Same thing it mens in any Squid version.

* The object at the given URL uses Vary header feature of HTTP.
  - Squid indexes the cache store by URL, so do deal with such features we place a special "vary object marker" in the cache at the index where URL lookup can find it. That object indicates that Vary is used by this resource and what Vary: header key is to be used. Squid then must perform a second cache lookup with the new key to find an object relevant for the current client. The object found by the second lookup is expected to be the real response.

* In your case the second lookup discovered a loop back to the same or another vary object.
  - Squid is just warning you that the cache is corrupted by that loop and will fetch a new object from the network.

Amos