Thanks for henrik's advice, I am running a file server that often requested by multi-thread download tools, if squid can prefetch and cache files, It will make my back-end server do less work. I find some email lists talking about this matter here: http://www1.uk.squid-cache.org/mail-archive/squid-users/200404/0962.html it's replied by henrik too, but I am still not understand How squid think about "abort" ? squid treat all the Range request as "abort" ? What about the browser window is closed by some one while requesting a file? 2008/6/28 Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx>: > On fre, 2008-06-27 at 18:44 +0800, WestWind wrote: >> I notice when I set quick_abort_pct to -1 KB, the file is cached , BUT >> the range_offset_limit not work, when request range > >> range_offset_limit, the file sill prefetched and cached. > > Is it? The two does not have much to do with each other... in fact > nothing except for them fighting a bit over the same object.. (see > below). > > > Yes, there is a misfeature in that Squid aborts the download after > sending the last piece requested by the client if quick_abort is enabled > (the default). So for prefetching of ranges one must both enable a > suitable range_offset_limit and disable quick_abort.. > > I would not recommend enabling range_offset_limit in a normal Internet > proxy as it can easily suck up all your available bandwidth. But > running with a configuration like the above makes a lot of sense in > reverse proxy setups however.. > > Regards > Henrik > > >
