On Fri, Jan 16, 2015 at 4:21 PM, Viktor Gunnarson <[email protected]> wrote: > Have you tried logging the requests that get misses? Perhaps that could give > some additional info. > > > > varnishlog -q "VCL_call ~ 'MISS'"
Nope, he's using Varnish 3. > Also you could provide the vcl because without that it’s really hard to know > what happens... > > > > Best regards, > > Viktor > > > > > > From: varnish-misc-bounces+viktor.gunnarson=ericsson....@varnish-cache.org > [mailto:varnish-misc-bounces+viktor.gunnarson=ericsson....@varnish-cache.org] > On Behalf Of Jennings III, Raymond > Sent: den 16 januari 2015 16:07 > To: Dridi Boukelmoune > Cc: varnish-misc > Subject: Re: Cannot figure out why I am getting a miss on a static URL > > > > varnishncsa clearly shows hits and misses within a 24 hour period despite > clearly setting the TTL to 24 hours. Varnishlog clearly shows the TTL being > set to 24 hours. I have NO lru_nuked objects as clearly shown by the > varnish stats. > > > > I'm not sure what is vague. I am setting an object for a TTL of 24 hours > yet during that 24 hour period it is still getting miss requests. The URLs > in question have no GET parameters. I am hashing only on the URL and not > the hostname. > > > > So what does this tell me? It tells me that my cache size is big enough. > > > > My guess is there is some type of contention from locking of some type given > other requests coming through. There are quite a few PUT and POST requests > that pass through this Varnish server. > > > > Ummmm, I hardly think that "anyone can't help me." I think most definitely > "someone" that has some insight about the internals could shed some light on > this problem. > > > > > > > Raymond Jennings III > > nytimes.com > > Office: 212.556.7786 > > iPhone: 914.330.5074 > > E-mail: [email protected] > > FaceTime: [email protected] > > > > On Fri, Jan 16, 2015 at 10:01 AM, Dridi Boukelmoune > <[email protected]> wrote: > > 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 > <[email protected]> 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: [email protected] >> FaceTime: [email protected] >> > >> _______________________________________________ >> varnish-misc mailing list >> [email protected] >> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc > > _______________________________________________ varnish-misc mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
