> and losing the cache swap log just triggers a rebuild. You won't lose > the cache, just time. > > Yes you have to set the swap state directories when using COSS. > Ah. darn COSS. We need to get rid of that handicap sometime :-( Amos > > Adrian > > On Fri, Dec 07, 2007, Amos Jeffries wrote: >> > rebuild of coss take longer time... about 30 mins to rebuild 6gb (with >> > configs posted previously)... >> > >> > correct ? >> > >> > i will loose my cached files (aufs) if cache_swap_log is set to the >> > same location of old swap file ?! >> >> 1) cache_swap_log is obsolete. Its now cache_swap_state to better >> reflect >> the file to which it applies, and that the file is NOT a normal log >> file. >> >> 2) Better leave the cache_swap_log/cache_swap_state at defaults (missing >> from squid.conf) for squid to handle it safely. >> >> 3) What Adrian meant was the order of the lines in squid.conf. Not an >> actual re-ordering of cache-dir. This is a major reason for #2, so a >> re-ordering in the config does not screw up the custom state file >> numbering. >> >> >> Amos >> >> > >> > thanks ! >> > >> > regards >> > >> > Alexandre >> > >> > On Dec 6, 2007 8:50 AM, Adrian Chadd <adrian@xxxxxxxxxxxxxxx> wrote: >> >> cache_dir's are 'checked' in order; I suggest putting the coss >> >> directories >> >> first. >> >> >> >> >> >> >> >> adrian >> >> >> >> >> >> On Fri, Dec 07, 2007, Amos Jeffries wrote: >> >> > Alexandre Correa wrote: >> >> > >can 2 cache_dir on the same hd (dedicated for squid) cause >> >> performance >> >> > >impact ? >> >> > > >> >> > >i?m using cache_dir aufs ... and cache_dir coss (objetcs smaller >> than >> >> > >1000k) >> >> > > >> >> > >cache_dir aufs /var/spool/squid/cache 110000 32 256 >> >> > >cache_dir coss /var/spool/squid/onda_coss01 6000 max-size=1000000 >> >> > >maxfullbufs=4 membufs=20 block-size=4096 >> >> > > >> >> > > >> >> > >thanks !! >> >> > > >> >> > >> >> > Looks good. Just some hints though... >> >> > >> >> > You'd do well to set min-size on the AUFS dir, to push the smaller >> >> > objects into COSS. At present small objects can go to either, and >> >> large >> >> > only in AUFS. >> >> > >> >> > A 4KB block-size may cause a lot of watse if you get a large number >> of >> >> > small objects such as optimized web pages or spacer images. The >> >> default >> >> > 512 is sufficient for COSS dir up to 8GB large >> >> > Not worth changing it now though if any important data has >> >> already >> >> > gone to COSS. Would require a destroy and rebuild to fix >> that. >> >> > >> >> > Two on same HDD might drag each other down a little, but no more >> than >> >> a >> >> > single large cachedir doing the same throughput. Unfortunately >> squid >> >> is >> >> > not head-optimised for disk usage yet. COSS is more in-memory than >> the >> >> > others so it should still be a net gain over a single pure aufs. >> >> > >> >> > Amos >> >> >> >> -- >> >> - Xenion - http://www.xenion.com.au/ - VPS Hosting - Commercial Squid >> >> Support - >> >> - $25/pm entry-level VPSes w/ capped bandwidth charges available in >> WA - >> >> >> > >> > >> > >> > -- >> > >> > Sds. >> > Alexandre J. Correa >> > Onda Internet / OPinguim.net >> > http://www.ondainternet.com.br >> > http://www.opinguim.net >> > >> > > -- > - Xenion - http://www.xenion.com.au/ - VPS Hosting - Commercial Squid > Support - > - $25/pm entry-level VPSes w/ capped bandwidth charges available in WA - >
