Hey Josh! Long while indeed! Thanks for your help.
We're using FILE (20GB) , ulimt -n is 1024 (is that what you're referring to?) -- right now the process only has 122 files open, so that doesn't seem to be the issue... but I'll watch out for next Wednesday. I'll also look at SESS_WORKSPACE. -- Jordi Salvat i Alabart CTO & Project Manager Salir.com +34 676 49 86 00 2011/8/25 Joshua Levine <[email protected]> > > > I sent that reply explicit to crashes, crashes that actually appear > addressed in your version, so I should also have asked, based on your > references to a somewhat regular schedule, if you are using MALLOC or FILE, > and also what you are allowing for NFILES… perhaps you are exceeding those > resource allocations? > > Cheers, > Joshua > > On Aug 24, 2011, at 9:09 AM, Jordi Salvat wrote: > > > Hi, > > > > we restarted our Varnish instance on Sunday 7th around 19:00. > > > > On Wednesday 10th 9:45 the child process restarted (causes unknown) -- > loosing the existing cache. > > > > ... the cache slowly grew again .... > > > > On Wednesday 17th around 2:00, the cache was somehow flushed, loosing > about 75% of its objects. > > > > ... the cache slowly grew again .... > > > > On Wednesday 24th at 2:00, the cache was flushed again, loosing about 85% > of its objects. > > > > On each of these occasions our cache hit rate went down from ~90% to > under 50%. Needless to say this is highly undesirable. > > > > What might be causing this behaviour? Any hints and directions helping > research welcome. > > > > Thanks. > > > > More details: > > > > Varnish version: 2.1.5 (Debian lenny package 2.1.5-1~lenny4) > > O.S.: Linux s229-161 2.6.38 #1 SMP Sat Mar 26 09:51:44 CET 2011 x86_64 > GNU/Linux > > > > MRTG daily graphs for cache size and objects in cache: > > > > <varnish_cache-day.png> > > > > <varnish_objects-day.png> > > > > Note how the two graphs are slightly different: size goes down between > 2:00 and 15:30, object count goes down suddenly at 15:30. > > > > Main VCL file attached (long to read -- feel free to ask questions). > > > > -- > > Jordi Salvat i Alabart > > CTO & Project Manager > > Salir.com > > +34 676 49 86 00 > > <salir.vcl>_______________________________________________ > > varnish-misc mailing list > > [email protected] > > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc > >
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