I had a situation recently where I had a large number of sensors enter a paused (or unknown) state and no one was informed of the situation. I was wondering if their was a way to create a sensor that would notify the PRTG Network Monitor system admin if then number of Down, Paused, unknown sensors reached a specific threshold.
Basically a warning when too many errors are detected.
I would suggest to use customized web page template for the PRTG webserver, that displays the number of sensors in paused/warning/OK etc. status, plus a HTTP content sensor, that monitors this value.
[<#graph graphcontent="statusoverview" show="textraw">]
Create a new HTTP Content sensor and enter the following URL:
http://yourprtgserver.ip/api/getsensorsbystate.htm?name=downsens&username=xyz&password=abc
This URL will display the total number of sensors which are in Error state (red), shown as a number between brackets [].
[8]
Please note: If there is no sensor in error state, the brackets will only contain a whitespace:
[ ]
The HTTP Content sensor reads this information and uses it as sensor values. Now your can use limits and triggers to send notifications.
The possible values for the "name" parameter are:
| Name | Description |
|---|---|
| upsens | Up sensors |
| downsens | Down sensors |
| downacksens | Acknowledged Down alarms |
| warnsens | Warning sensors |
| unusualsens | Unusual sensors |
| pausedsens | Paused sensors |
| undefinedsens | Unknown sensors |
| totalsens | Total sensors |
You can only request one value per request/sensor. So in order to monitor unknown and error sensors you need to set up two HTTP Content sensors.
Please have a look at the API documentation for more information about using the HTTP API: How can I use the PRTG application programming interface (API)?
Created on Mar 19, 2010 12:13:40 PM by
Last change on Oct 5, 2011 9:23:27 AM by
Using the API it is possible to create a custom sensor that provides you with this information.
But what if this sensor suddenly goes into a warning state?
Created on Mar 19, 2010 8:12:21 AM by
I would suggest to use customized web page template for the PRTG webserver, that displays the number of sensors in paused/warning/OK etc. status, plus a HTTP content sensor, that monitors this value.
[<#graph graphcontent="statusoverview" show="textraw">]
Create a new HTTP Content sensor and enter the following URL:
http://yourprtgserver.ip/api/getsensorsbystate.htm?name=downsens&username=xyz&password=abc
This URL will display the total number of sensors which are in Error state (red), shown as a number between brackets [].
[8]
Please note: If there is no sensor in error state, the brackets will only contain a whitespace:
[ ]
The HTTP Content sensor reads this information and uses it as sensor values. Now your can use limits and triggers to send notifications.
The possible values for the "name" parameter are:
| Name | Description |
|---|---|
| upsens | Up sensors |
| downsens | Down sensors |
| downacksens | Acknowledged Down alarms |
| warnsens | Warning sensors |
| unusualsens | Unusual sensors |
| pausedsens | Paused sensors |
| undefinedsens | Unknown sensors |
| totalsens | Total sensors |
You can only request one value per request/sensor. So in order to monitor unknown and error sensors you need to set up two HTTP Content sensors.
Please have a look at the API documentation for more information about using the HTTP API: How can I use the PRTG application programming interface (API)?
Created on Mar 19, 2010 12:13:40 PM by
Last change on Oct 5, 2011 9:23:27 AM by
What you basically want to do, is present a counter like the Gadget does. This routine is now implemented in a new Custom Sensor: SensorCount.
It requires the following parameters to query your PRTG server:
-s=ip-address[:portnumber] -u=username -p=password
Using (a combination of) the following switches you can count the sensors of your choice.
-u count up sensors -d count down sensors -a count acknowledged down sensors -w count warning sensors -u count unusual sensors -p count paused sensors -k count unknown sensors
So in order to monitor unknown and error sensors you simply supply the -k and the -d switch.
Created on Mar 24, 2010 7:10:33 PM by
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