NagiosGrapher + check_disk problem

[Lars Stavholm]

Hi All,

I wonder if anyone more knowledgeable than myself could help out:

We're using nagios 2.7 (latest) + NagiosGrapher 1.6.1 RC2 (latest)
together with the check_disk plugin from nagios-plugins 1.4.6.

We monitor 26 file systems on one machine, monitoring is fine,
and graphing for each of this is brilliant, except for one:
the culprit is mounted on /var/downloads and the only anomaly
I can think off is the name length,  14 char's. It's the longest
name we have. 2nd longest is /var/archive, 12 char's, which by the
way works just great, both monitoring and graphing (like all the rest
of the file system monitoring and graphing). In fact, all file systems
gets the great looking graphs, except for /var/downloads.

Symptoms:

1. NagiosGrapher usually fills the serviceext file with proper
configuration automatically. So it did for all the services,
except for the /var/downloads.

2. Clicking on the graph icon reveals an error at the beginning:

RRD Error: reading the cookie off /var/lib/nagios/perfdata/localhost failed.

(and yes, I've tried clearing out - deleting - all perf data
 and then start the NagiosGrapher and nagios again).

3. ngraph.log says:

2007-02-14 15:28:19 PIPE: localhost     /var/downloads  DISK OK - free
space: /var/downloads 315 MB (30% inode=-):
/var/downloads=708MB;920;971;0;1023
2007-02-14 15:28:19 REGEX: 7 blocks for '/var/downloads' found.
2007-02-14 15:28:19 REGEX: perfdata=/var/downloads=708MB;920;971;0;1023
2007-02-14 15:28:19 REGEX: perfdata=/var/downloads=708MB;920;971;0;1023
2007-02-14 15:28:19 REGEX: perfdata=/var/downloads=708MB;920;971;0;1023
2007-02-14 15:28:19 REGEX: perfdata=/var/downloads=708MB;920;971;0;1023
2007-02-14 15:28:19 REGEX: perfdata=disk ok - free space: /var/downloads
315 mb (30% inode=-):
2007-02-14 15:28:19 VALUES: [localhost][/var/downloads]:No matching
output values found...

So the last line is supposedly telling me the problem.
Only thing is, I don't understand what it means.

Any help appreciated, this one got me baffled.
/Lars

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