Hans van Leeuwen

The time zone of the Nagios-server and the desktop system on which the nagiosgraph view was showed where not equal. The timezones are equalized and the problem is solved.

In the attachment you see a view of a Nagios service in Nagiosgraph. With the cursor on the black cross I see the date and time "25.09.2022 21:13". (I draw the black cross with mspaint because snipping tool doesn't copy the black cross.) Below the black cross I see "Mon 06:00". Today it is Monday 26 September 2022. The "Mon 06:00" is correct but the "25.09.2022 21:13" is not correct. How can I fix that?

The use of a disk fluctuated between 90 % and 95 %. Nagiosgraph shows with RRD an Y-axis from 0 % to 100%. Therefor the fluctuation in the line is very small. Is it possible to show only the Y-axis part from 85 % to 100 %, to see more fluctuation in the line. If yes, how can I configure this.

The use of a disk fluctuated between 90 % and 95 %. Nagiosgraph shows with RRD an Y-axis from 0 % to 100%. Therefor the fluctuation in the line is very small. Is it possible to show only the Y-axis part from 85 % to 100 %, to see more functuation in the line. If yes, how can I configure this.

My assumption was wrong. The number of rrd files was not the problem. The "check_interval" was the problem. The default check_interval of 5 minutes give a good result and not "-nan" values. A higher check_interval then +/- 12 minutes result in "-nan" values in the graph.

Configure this in the configuration file /usr/local/nagiosgraph/etc/nagiosgraph.conf For all graphs: rrdopts=--logarithmic For some services: logarithmic=service1,service2

Nagiosgraph use the rrdtool to generate the png. The rrdtool support the generation of a png with a logarithmic Y-axis. Is it possible to configure Nagiosgraph on such a way that it generate a png with a logarithmic Y-axis?

Nagiosgraph use the rrdtool to generate the png. The rrdtool support the generation of a png with a logarithmic Y-axis. Is it possible to Nagiosgraph on such a way that it generate a png with a logarithmic Y-axis?