[mrtg] can't figure out CPU

Koelstra, J. (Jan) JKoelstra at MINSZW.NL
Wed Apr 18 10:08:58 CEST 2007


Since you get a messages 'Unknown SNMP var ssCpuRawUser...' I suggest you try the full numerical oid's at the target line.
Long time ago whwn using an MRTG 2.7 or 2.8 version I encounterd a similar problem: With a regular expression in the target line the only way to get it running was with the full numerical oid's. I don't know if this was ever fixed.



	-----Original Message-----
	From: mrtg-bounces at lists.oetiker.ch [mailto:mrtg-bounces at lists.oetiker.ch] On Behalf Of Brian Neu
	Sent: Wednesday, April 18, 2007 3:39 AM
	To: mrtg at lists.oetiker.ch
	Subject: [mrtg] can't figure out CPU

	Gracious and patient mrtg users:

	   A humble mrtg newbie requests your assistance.

	    In trying to get MRTG to monitor CPU/system info from the localhost, I have running into the following situation.

	So with either v1 or v2c, I get this:

	]# snmpwalk -v 2c -c <mycom> localhost ssCpuUser.0
	UCD-SNMP-MIB::ssCpuUser.0 = INTEGER: 0

	Working,right?  Not for mrtg, at least not the way that I'm trying to do it:

	---------   /etc/mrtg/cpu.cfg  -------
	WorkDir: /var/www/mrtg
	LoadMIBs: /usr/share/snmp/mibs/UCD-SNMP-MIB.txt,/usr/share/snmp/mibs/TCP-MIB.txt
	Target[localhost.cpu]:ssCpuRawUser.0&ssCpuRawUser.0:aonetworks at localhost + ssCpuRawSystem.0&ssCpuRawSystem.0:aonetworks at localhost + ssCpuRawNice.0&ssCpuRawNice.0:aonetworks at localhost
	----- truncated for your viewing pleasure ----

	]# LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/cpu.cfg
	Unknown SNMP var ssCpuRawUser.0
	 at /usr/bin/mrtg line 2149
	Unknown SNMP var ssCpuRawUser.0
	 at /usr/bin/mrtg line 2149
	2007-04-17 21:31:22: WARNING: Expected a number but got '3:26:16'
	2007-04-17 21:31:22: WARNING: Expected a number but got 'myhost.mydomain.com'
	Unknown SNMP var ssCpuRawSystem.0
	 at /usr/bin/mrtg line 2149
	Unknown SNMP var ssCpuRawSystem.0
	 at /usr/bin/mrtg line 2149

	Soooo, what am I doing wrong?

	rpm -qa |egrep "mrtg|snmp"


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