RE: [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

  Make sure to run this command as root, or as the effective user
squid runs as, when this command is given.

> and the second time, it restart instead of shutdown.

  What was in cache.log when this happened ?

>
> Have any one got an idea what's wrong with my squid ?
>
  
 - What's your avg. http reqs/sec during normal load ?
 - Check whether disk/io is a bottleneck , using OS commands.

 M.
Received on Mon Apr 18 2005 - 00:44:24 MDT