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Making a custom graph

list Buchan Milne
Fri, 18 Feb 2011 22:39:59 +0200
Message-Id: <user-3d9711a055ba@xymon.invalid>

On Friday, 18 February 2011 18:21:38 Root, Paul wrote:
-----Original Message-----
From: Buchan Milne [mailto:user-9b139aff4dec@xymon.invalid]
Sent: Friday, February 18, 2011 4:07 AM
To: xymon at xymon.com
Cc: Root, Paul
Subject: Re: [xymon] Making a custom graph
On Thursday, 17 February 2011 22:58:41 Root, Paul wrote:
Hi,
        I have a simple script that counts the number of connects we
        have
for a certain port. Specifically, the ssh proxy port for HP NA.
My output looks like this:
Concurrent SSH Sessions
Sessions : 17
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 :::8022 :::* LISTEN
tcp 0 0 ::ffff:199.168.33.8:8022 ::ffff:10.1.193.70:1810 ESTABLISHED
I see that I have issues as there are a bunch of colons. I want to
graph just the number of sessions for each interval.
Is there any reason you aren't using the built-in PORTS feature, e.g.
# hobbit-clients.cfg
HOST=xxx
      PORT LOCAL=*:8022 0 STATE=ESTABLISHED TRACK=hpna COL=green
That would give you a graph with name hpna of established to the local
8022 port.
The one problem is that we had a situation where a number of connections
was stuck in CLOSE-WAIT. I'm guessing this isn't going to track that. Or
is it?

Can I set STATE to CLOSE-WAIT? The man page suggests not.
I've used TIME_WAIT:


        PORT LOCAL=%([.:]389) STATE=ESTABLISHED MIN=0 MAX=750 COL=yellow
        PORT LOCAL=%([.:]389) STATE=ESTABLISHED TRACK=ldap MIN=0 MAX=900 COL=red
        PORT LOCAL=%([.:]389) STATE=TIME_WAIT MIN=0 MAX=1500 COL=yellow
        PORT LOCAL=%([.:]389) STATE=TIME_WAIT TRACK=ldap-wait MIN=0 MAX=2500 COL=red

So I see no reason why CLOSE_WAIT wouldn't work:

STATE=state
      Causes only the sockets in  the  specified  state  to  be included,
      "state" is usually LISTEN or ESTABLISHED but can be any socket state
      reported by the clients "netstat" command.


Regards,
Buchan