AW: [squid-users] coss configuration example

In my experience, you have to set the cache_swap_log variable to an existing directory where you can read and write to

e.g.
cache_swap_log /var/squid/cache1/%s

This is because the swap log couldn't be written to the same directory in the coss case (because it isn't a directory, it is a file).

Greetings,

Martin
-----Ursprüngliche Nachricht-----
Von: chima s [mailto:chima.s@gmail.com]
Gesendet: Montag, 14. August 2006 16:13
An: Steven Wilton
Cc: squid mailing
Betreff: Re: [squid-users] coss configuration example

Hi Steven,

I have tried following but it failed
dd if=/dev/zero bs=1048576 count=2048 of=/cache_log/coss

Part of Squid.conf
----------------------
cache_dir coss /cache_log/coss 2500 block-size=512 max-size=131072
cache_access_log /var/log/squid/access.log
cache_log /var/log/squid/cache.log
cache_store_log none
cache_swap_log none

Squid was compiled as
----------------------------
./configure --enable-storeio=coss --enable-coss-aio-ops --with-large-files

While starting the squid i am getting error as
2006/08/14 19:36:37| WCCP Disabled.
2006/08/14 19:36:37| Ready to serve requests.
2006/08/14 19:36:37| COSS: /cache_log/coss: Rebuilding (0 % completed
- 1/2500 stripes)
2006/08/14 19:36:39| COSS: /cache_log/coss: Rebuilding (5 % completed
- 126/2500 stripes)
2006/08/14 19:36:40| COSS: /cache_log/coss: Rebuilding (10 % completed
- 251/2500 stripes)
2006/08/14 19:36:42| COSS: /cache_log/coss: Rebuilding (15 % completed
- 376/2500 stripes)
2006/08/14 19:36:43| COSS: /cache_log/coss: Rebuilding (20 % completed
- 501/2500 stripes)
2006/08/14 19:36:44| COSS: /cache_log/coss: Rebuilding (25 % completed
- 626/2500 stripes)
2006/08/14 19:36:45| COSS: /cache_log/coss: Rebuilding (30 % completed
- 751/2500 stripes)
2006/08/14 19:36:47| COSS: /cache_log/coss: Rebuilding (35 % completed
- 876/2500 stripes)
2006/08/14 19:36:48| COSS: /cache_log/coss: Rebuilding (40 % completed
- 1001/2500 stripes)
2006/08/14 19:36:49| COSS: /cache_log/coss: Rebuilding (45 % completed
- 1126/2500 stripes)
2006/08/14 19:36:50| COSS: /cache_log/coss: Rebuilding (50 % completed
- 1251/2500 stripes)
2006/08/14 19:36:52| COSS: /cache_log/coss: Rebuilding (55 % completed
- 1376/2500 stripes)
2006/08/14 19:36:53| COSS: /cache_log/coss: Rebuilding (60 % completed
- 1501/2500 stripes)
2006/08/14 19:36:55| COSS: /cache_log/coss: Rebuilding (65 % completed
- 1626/2500 stripes)
2006/08/14 19:36:57| COSS: /cache_log/coss: Rebuilding (70 % completed
- 1751/2500 stripes)
2006/08/14 19:36:58| COSS: /cache_log/coss: Rebuilding (75 % completed
- 1876/2500 stripes)
2006/08/14 19:36:59| COSS: /cache_log/coss: Rebuilding (80 % completed
- 2001/2500 stripes)
2006/08/14 19:37:01| COSS: /cache_log/coss: Rebuilding (85 % completed
- 2126/2500 stripes)
2006/08/14 19:37:02| COSS: /cache_log/coss: Rebuilding (90 % completed
- 2251/2500 stripes)
2006/08/14 19:37:02| COSS: /cache_log/coss: Rebuilding (95 % completed
- 2376/2500 stripes)
FATAL: storeCossDirCloseTmpSwapLog: rename failed

I don't know what went wrong.

Regards
Chima

On 8/5/06, Steven Wilton <swilton@q-net.net.au> wrote:
>
> ----- Original Message -----
> From: "chima s" <chima.s@gmail.com>
> To: "squid mailing" <squid-users@squid-cache.org>
> Sent: Friday, August 04, 2006 8:24 PM
> Subject: [squid-users] coss configuration example
>
>
> > Hi,
> >
> > Can any one give the squid configuration to use coss cache_dir.
> >
> > My system info
> >
> > Fedora Core release 3
> > Kernel : 2.6.10
> > Squid : squid-2.6.STABLE2-20060804
> > MEM: 2GB
> > HD : 2*72 GB SCSI
> > System Filesystem: reiserfs
> >
> > How COSS_MEMBUF_SZ is calculated for given cache_dir size
> >
> > Regards
> > Chima
> >
>
> The minimum config for a COSS dir is the following (for 100MB cache_dirs):
> cache_dir coss /var/spool/squid/coss 100 block-size=512 max-size=131072
> or
> cache_dir coss /dev/sdb1 100 block-size=512 max-size=131072
>
> If you set COSS to write to a flie, you must create the file manually. To
> do this, you can run:
> dd if=/dev/zero bs=1048576 count=<size> of=<file>
>
> If you set COSS to write direct to a block device, you need to make sure
> that the cache user has write permissions on the block device.
>
>
> The COSS_MEMBUF_SZ does not get set on a per-device basis. The magic number
> you need to be aware of is the block-size, which limits the size of the
> cache. The valid numbers are:
>
> block-size=512 - 8GB Max cache_dir size
> block-size=1024 - 16GB Max cache_dir size
> block-size=2048 - 32GB Max cache_dir size
> block-size=4096 - 64GB Max cache_dir size
> block-size=8192 - 128GB Max cache_dir size
>
> Steven
>
>
Received on Wed Aug 16 2006 - 00:22:44 MDT