Nagios Support Forum

Hello All,

I'm testing the Exchange Messages Queued for Delivery service check, from the Configuration Wizard, and at times, I'm getting different results in performance graphs, for example:

Result: OK: \MSExchangeTransport Queues(_Total)\Messages Queued for Delivery was 9.00 Messages Queued For Delivery
Perfgraph Shows: 8.72

Result: OK: \MSExchangeTransport Queues(_Total)\Messages Queued for Delivery was 2.00 Messages Queued For Delivery
Perfgraph Shows: 2.85

Is there a way to ensure that the performance graphs shows the resulting totals from the check?

Thanks in advance.

Hello @shoreypu,

My guess as to what's happening here is that the graph is using the average value over the timestep. You might be able to reduce this problem by altering your timesteps.
You could also try altering your configuration to send this information as a passive check, but that would be a rather involved process and wouldn't be able to rely on the wizard to set things up.

Thanks bbahn, my thoughts were that its graphing avg as well. Is there a way to add to the command to have it graph sum?

What's the formatting of the perfdata string, as shown in the advanced portion of the interface.

Is the value a float?

Try converting the output to an integer with the counter Unit of Measure in the perfdata or adding the "c" unit of measure

From the docs
https://nagios-plugins.org/doc/guidelines.html

UOM (unit of measurement) is a string of zero or more characters, NOT including numbers, semicolons, or quotes. Some examples:

no unit specified - assume a number (int or float) of things (eg, users, processes, load averages)
s - seconds (also us, ms)
% - percentage
B - bytes (also KB, MB, TB)
c - a continous counter (such as bytes transmitted on an interface)

Here's an example,
From the Advanced Status Details
Performance Data: '\MSExchangeTransport Queues(_Total)\Messages Queued for Delivery'=3.00;25;50;

From the Performance graph

Taking a further look at this, I noticed the latest results in the Performance graph showing the different number in the result.

For example, the graph provides the Last, Avg, and Max results. The graph shows the same last result, but the service checks status info will how a whole number, for example, 2.00. This is an active check and my only added option is for sleep, but so far I'm getting similar results.

Watching live with my Exchange admin only shows whole numbers.

This is very confusing.