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/
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