Re: [squid-users] Help Required : No buffer space available

From: Michael Smirnov <smbsmb@dont-contact.us>
Date: Tue, 16 Apr 2002 15:13:06 +0400

> I'm running Squid-2.4.STABLE6 (in accelerator mode) on FreeBSD 4.4-RELEASE
> (dual P3 450Mhz)
>
> After 5 minutes of running, I'm getting this error in my cache.log:
>
> comm_open: socket failure: (55) No buffer space available.
>
> 2016 Kbytes allocated to network (65% of mb_map in use)
I had the same problem on FreeBSD 4.4 and 4.2,
when mb_map percentage wah high.
I wondered, because the peak value was lower that max!

I increased mbufs, and now I have
# netstat -m
101/288/16384 mbufs in use (current/peak/max):
        101 mbufs allocated to data
99/274/4096 mbuf clusters in use (current/peak/max)
620 Kbytes allocated to network (5% of mb_map in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines

Add to /boot/loader.conf
kern.ipc.nmbclusters="4096" # Set the number of mbuf clusters
kern.ipc.nmbufs="16384" # Set the number of mbufs = 4 * nmbclusters

and reboot.
Or recompile the kernel and reboot.
Received on Tue Apr 16 2002 - 05:13:13 MDT

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