[squid-users] squid hangs when "Disk I/O overloading"

hi

I'm using squid 2.5 STABLE9 in linux. I compiled squid with 32 async io
threads. these days, my squid stop working with the following message
shown in cache.log.

2005/04/18 10:37:01| squidaio_queue_request: WARNING - Disk I/O overloading
2005/04/18 10:37:01| squidaio_queue_request: Queue Length: current=3651,
high=3651, low=321, duration=160
2005/04/18 10:37:16| ctx: exit level 0
2005/04/18 10:37:16| ctx: enter level 0:
'http://xxxxxxxxx/05/0207/03/1BV6VGSS001618FL_2.html'
2005/04/18 10:37:16| squidaio_queue_request: WARNING - Disk I/O overloading
2005/04/18 10:37:16| squidaio_queue_request: Queue Length: current=3920,
high=3920, low=321, duration=175
2005/04/18 10:37:27| ctx: exit level 0
2005/04/18 10:37:27| ctx: enter level 0:
'http://xxxxxxxxx/05/0417/17/1HIAJ1TA00051CC8_4.html'
2005/04/18 10:37:27| squidaio_queue_request: Async request queue growing
uncontrollably!
2005/04/18 10:37:27| squidaio_queue_request: Syncing pending I/O
operations.. (blocking)

I then run squid -k shutdown twice. The first time, squid complain that
2005/04/18 10:37:27| Killing RunCache, pid 10657
2005/04/18 10:37:27| kill 10657: (1) Operation not permitted
and the second time, it restart instead of shutdown.

Have any one got an idea what's wrong with my squid ?

thx
Received on Sun Apr 17 2005 - 23:58:34 MDT