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Re: squid freebsd aufs + coss - same hd

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if not set the cache_swap_log/cache_swap_state squid doesn´t start !!

cache_swap_log/cache_swap_state is where squid save the default
'swap.state'.. right ?

adding coss cache_dir ... squid recreate swap.state ?

thanks !1

regards !

On Dec 6, 2007 8:03 PM, Adrian Chadd <adrian@xxxxxxxxxxxxxxx> wrote:
> 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.
>
>
>
>
> 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 1) cache_swap_log is obsolete.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 -
>



-- 

Sds.
Alexandre J. Correa
Onda Internet / OPinguim.net
http://www.ondainternet.com.br
http://www.opinguim.net


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