Hello.
Sorry for the very late answer. That is a very good command, thank you for
your recommendation. All the time that I have executed it it shows "0 listen
queue overflows" so I guess our configuration is working.
Thank you so much.
-----Mensaje original-----
From: Kubilay Kocak
Sent: Thursday, January 31, 2013 6:39 AM
To: Efraín Déctor
Cc: freebsd-stable@freebsd.org
Subject: Re: About kern.ipc.somaxconn and netstat
On 31/01/2013 4:54 AM, Efraín Déctor wrote:
-----Mensaje original----- From: Kubilay Kocak
Sent: Wednesday, January 30, 2013 3:25 AM
To: Efraín Déctor
Cc: freebsd-stable@freebsd.org
Subject: Re: About kern.ipc.somaxconn and netstat
On 30/01/2013 12:26 PM, Efraín Déctor wrote:
Hello.
We have a webserver using FreeBSD, we read about tunning
kern.ipc.somaxconn
(http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/configtuning-kernel-limits.html)
so the OS can handle all the connections. Is there a way to know how
many connections are established in a certain moment?. I know about
netstat(1) but is there any other command that we can use to know the
exact amount of how many connections are established?.
This one might help:
kern.ipc.numopensockets: Number of open sockets
It's usefulness will depend on the granularity you require (in only, out
only, established only, etc) but it's always represented system-wide
resource consumption very well (matching observed workloads - <some
baseline value>)
Thank you, it is very helpfull, using kern.ipc.numopensockets with
sockstat(1) and netstat(1) will give me a clue to tune kern.ipc.somaxconn
Thank you all.
Also, if you haven't already come across this one in your netstat
travels, this one directly reports listen queue overflows:
netstat -s -p tcp |grep listen
--
Ta,
Koobs
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