Re: FD leak, except, not really

On Tue, 16 Jun 1998, Apiset Tananchai wrote:

> On 15 Jun 1998, Michael O'Reilly wrote:
>
> > Eric Stern <estern@packetstorm.on.ca> writes:
> > > I noticed this strange thing happening to my squid1.2beta22 recently.
> > >
> > > File descriptor usage for squid:
> > > Maximum number of file descriptors: 3000
> > > Largest file desc currently in use: 1007
> > > Number of file desc currently in use: 116
> > > Available number of file descriptors: 2884
> > > Reserved number of file descriptors: 100
> > >
> > > The # in use is staying pretty stable, but the "Largest file desc
> > > currently in use" keeps going up, like it is not reusing FD #'s. It will
> > > keep going up until it reaches the max, then squid will jump the reserverd
> > > number way up, and things stop working, requiring a restart.
> >
> > Yes, seeing the same thing. Squid reports ~450 fd's used, the kernel
> > reports closer to 2500. (in fact the squid eventually dies due to
> > running out of FDs).
>
> Look like I'm seeing the same thing here. :) Squid now report ~540 fds
> inuse but 'ls /proc/<squid id>/fd | wc -l' report ~2970. Response time is
> terrible (refresh cachemgr.cgi takes 7-10 secs).
>
> As of now squid report 2979 as the largest file desc currently in use.
> I'll see if it ever reach 3000 and if squid would die.
>
> I'm running squid-1.2beta2[02] on Linux 2.0.34+3000fd patch
> PII 300Mhz, 384MB Ram, squid now use ~280MB.

OK...I'm now start getting

WARNING! Your cache is running out of filedescriptors

in my cache.log and have to restart squid to make it responsive again.
Do you have a workaround/fix for this bug?

Follow is what cachemgr.cgi say about FD usage at that time:

File descriptor usage for squid:
        Maximum number of file descriptors: 3000
        Largest file desc currently in use: 2999
        Number of file desc currently in use: 758
        Available number of file descriptors: 2242
        Reserved number of file descriptors: 2245

As you can see, very strange "available no. of fds" and "reserved no. of
fds". Please email me if you need more information.

Regards,

--
aet