custom SNMP for custom graph

[Mihamina Rakotomandimby <mihamina@gulfsat.mg>]

Manao ahoana, Hello, Bonjour,

I have an already working MRTG+SNMP+Apache here:
http://srv3.rktmb.org:90/mrtg/

I try to make a custom MRTG graph
First, I need to build SNMP stuff.

Say I want to monitor the access of my web server by counting the
number of lines of my access_log file. Just that simple, to begin.

I have a script:

/usr/local/bin/ocsigen_access containing:

 #!/bin/bash
 echo "ocsigen"
 echo $(wc -l /var/log/ocsigen/access.log | awk '{print $1}')
 exit 35

Then in my /etc/snmp/snmpd.conf, I added:

 exec .1.3.6.1.4.1.2021.254 ocsigen /usr/local/bin/ocsigen_access

Then restart SNMPd

 invoke-rc.d snmpd restart

Then on the same host:
 snmpwalk -v 1 -c public localhost .1.3.6.1.4.1.2021.254
 (returns nothing...)

What did I miss?

PS: 

  $ echo $(wc -l /var/log/ocsigen/access.log | awk '{print $1}')
  510502
  $

Misaotra, Thanks, Merci.

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