On 10/30/2012 23:05, Adrian Chadd wrote:
Check the output of 'netstat -mb', maybe you're also running out of mbufs?
There was nothing denied there that I can see:
35696/4039/39735 mbufs in use (current/cache/total)
2069/3797/5866/32768 mbuf clusters in use (current/cache/total/max)
2069/2077 mbuf+clusters out of packet secondary zone in use (current/cache)
4/3283/3287/16384 4k (page size) jumbo clusters in use
(current/cache/total/max)
0/0/0/8192 9k jumbo clusters in use (current/cache/total/max)
0/0/0/4096 16k jumbo clusters in use (current/cache/total/max)
13078K/21735K/34813K bytes allocated to network (current/cache/total)
0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
0/0/0 requests for jumbo clusters denied (4k/9k/16k)
0/0/0 sfbufs in use (current/peak/max)
0 requests for sfbufs denied
0 requests for sfbufs delayed
0 requests for I/O initiated by sendfile
0 calls to protocol drain routines
Adrian
On 30 October 2012 06:21, Adam Strohl <adams-free...@ateamsystems.com> wrote:
Hey -STABLE,
I've got a client who we've setup a FreeBSD cluster for with about a dozens
servers, all behind two front end proxies/LBs/firewalls which also act as
NAT gateways for the internal servers.
On the active front end proxy we've started seeing "fatal: socket: No buffer
space available" errors during high-peak times. I can see in vmstat -z
that this is what is getting denied:
ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP
tcp_inpcb: 392, 32770, 19398, 13372,1449734621,6312858, 0
We've got a lot of the other values bumped, and it appears to be this input
limit that is getting hit. There are no other non-zero FAILed counters
except 64 and 128 buckets which I believe are normal.
I cannot seem to find the sysctl (or equiv) that controls this limit though,
or even what it is. Anyone know?
I'm obviously in need of this specific answer, but overall is there a codex
of vmstat -z's items that explains this that I have just not found in my
searches? This isn't the first time I've had to dig into a value like this
to increase it's limit, but this time I'm not turning anything up.
Any thoughts/ideas appreciated!
--
Adam Strohl
http://www.ateamsystems.com/
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
--
Adam Strohl
http://www.ateamsystems.com/
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
