Cannot figure out why I am getting a miss on a static URL

Dridi Boukelmoune dridi.boukelmoune at zenika.com
Fri Jan 16 16:01:10 CET 2015


Hi Raymond,

Have you looked at the logs?

Your description of the issue is too vague, I don't think anyone can
help you with just that.

Cheers,
Dridi

On Thu, Jan 15, 2015 at 3:36 PM, Jennings III, Raymond
<raymond.jennings at nytimes.com> wrote:
> I have a static URL that I set a TTL for 24h but yet every so many minutes I
> get a "miss" (as shown in my varnishncsa.)
>
> I purge this URL every 24 hours.
>
> 1 - The URL never has any parameters.
> 2 - I do not hash over the hostname only the URI
> 3 - Nobody is issuing any PURGE or BAN requests
> 4 - n_lru_nuked is always 0
> 5 - There are no 500 or 400 responses
>
> What is causing this URL to get a miss when everything I see looks good?  If
> the cache size has been exceeded I would have expected to see the nuked
> value be something other than 0.
>
> vcl_fetch is basically just:
>
> set beresp.ttl = 24h;
> return(deliver);
>
> Any reason why Varnish seems to be taking it upon itself to cause this miss?
> In 24 hours I get about 12000 requests and out of those 120 misses and I
> should see 2 miss requests at most.
>
> The backends are healthy.
>
> This is varnish-3.0.6-1.el6.x86_64
>
> Thanks.
>
>
>
> Raymond Jennings III
> nytimes.com
> Office: 212.556.7786
> iPhone: 914.330.5074
> E-mail: Raymond.Jennings at nytimes.com
> FaceTime: Raymond.Jennings at nytimes.com
>
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