[squid-users] squid not storing objects to disk and getting RELEASED on the fly

I have a strange issue happening with my squid (v 3.1.8)
2 squid servers with sibling - sibling setup in accel mode.

after running the squid for 2 to 3 days, the HIT rate has gone down.
from 50% HIT to 34% for TCP and from 34% HIT to 12% for UDP.

store.log shows that even fresh requests are NOT getting stored onto
disk and getting RELEASED rightaway.
This issue is with both squids...

store.log entry:
1285176036.341 RELEASE -1 FFFFFFFF 7801460962DF9DCA15DE95562D3997CB
200 1285158415 -1 1285230415 application/x-download -1/279307
GET http://....
requests have a max-age of 20Hrs.

squid.conf:
cache_dir aufs /squid/var/cache 20480 16 256
cache_mem 1536 MB
memory_pools off
cache_swap_low 50
cache_swap_high 55
refresh_pattern . 0 20% 1440

filesystem is resizerfs with RAID-0. only 11GB used for the cache.

$cat /proc/sys/fs/file-nr
640 0 1525202

$ cat /proc/sys/fs/file-max
1525202

Any help is highly appreciated.

thanks.
Received on Wed Sep 22 2010 - 17:55:52 MDT