On Mon, 2009-08-24 at 18:30 +1200, Amos Jeffries wrote: > Muhammad Sharfuddin wrote: > > On Mon, 2009-08-24 at 17:05 +1200, Amos Jeffries wrote: > >> On Mon, 24 Aug 2009 10:24:41 +0600, Muhammad Sharfuddin > >> <m.sharfud...@nds.com.pk> wrote:
> > > > So I really dont understand why you said/wrote 'The following rules > > *ONLY* apply to external people' > > > > Because you "allow localnet" (AKA unrestricted access to all internal > client) before doing those rules. > > Regardless of what they are they will only be tested against the > requests coming from outside your "localnet" defined local network ranges. thanks in squid.conf #http_access allow localnet then # squid -k reconfigure > > > you are recommending aufs over diskd, and the following url suggest 'diskd' > > as the the store type of choice for the Cache-off's > > http://www.linuxsa.org.au/pipermail/linuxsa/2004-June/070228.html > > > > Written in 2004. Server CPU threading has come a long way since then. > > diskd is a single-threaded helper application, with a processing IO > _upper_ limit of 1 file read at a time. Squid itself does not block, but > the helper reads/writes are blocking each other _within the helper_. > > AUFS is a multi-threaded component utilizing the kernel and all > available CPU for non-blocking read/write to as many files as needed > simultaneously. Limits are defined by the available FD in Squid and > system CPU capabilities. > > diskd is only recommended for use on *BSD systems where AUFS support is > not available (yet). > Ok, nice and thanks > > > >> Also with ~50GB of storage you are probably wanting to use something like > >> 32 or 64 for the Level-1 value (currently 16). Changing that requires a > >> cache delete and rebuild with 'squid -z' though. > > whats the rule/formula for Level-1 and Level-2 value ? is it related > > with storage size ? > > > > Yes. OS used to have an upper limit on the number of files stored in a > single directory. I think most still do for the common filing systems. > > Between them these numbers define how many folders are used in the > cache. Smaller caches only need a few folders, bigger caches need a lot > more to keep the OS happy. > > The default squid.conf comes tuned for a 200MB cache. Quite small for > any real use. When you are heading into tens of GB its a good idea to > start upping these numbers. How much depends on your OS filesystem and > avg. object size in the cache. Big and huge objects obviously reduce the > pressure for extra folders. > cache_dir aufs /var/cache/squid 50000 32 256 so the above one is OK, or should I also need to increase the Level-2 value(256) ? By the way whats the best file system for caching reiserfs, ext3, or XFS ( I am using reiserfs with 'notail,noatime,noacl' options) > >> > >> These days I'm advising people terminate their file extension patterns with > >> (\?.*)?$ instead of just $ to catch all the sites using dynamic parts in > >> their URLs. > >> > >> > > you mean the following ? > > (\?.swf)?$ > > (\?.mdi)?$ > > e.g > > refresh_pattern -i (\?.swf)?$ 43200 100% 43200 override-lastmod > > override-expire > > No, no. > > This: > refresh_pattern -i \.swf(\?.*)?$ .... Thanks Regards --ms
