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How to alert on temperature custom poller value that is not an integer

I have a device that has a temperature sensor. I was able to configure a custom poller, but the output value contains both text and an integer, for example, "SYS_TEMP; +24.00 C".

How would I construct a trigger condition that would fire when the numerical part of that output exceeds a certain threshold?

Is there a way to embed a string or regex inside a "contains" condition?

Thanks for any help.

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borgan

Anyone?

brianj

This is a very interesting question. I can only think of two ways to do this.

brianj

This is an interesting question and I can only think of two ways to do what you want.

The easier way is to create an alert with a trigger condition where the UnDP message contains "SYS_TEMP; +3" or "SYS_TEMP; +4" (without the quotes). This assumes the temperature will not jump from under 30 to over 50 in a single polling interval.

The more challenging way is to create an alert using custom SQL. With SQL you have a bit more ability to parse the text, but I don't know enough about the database structure to suggest what you would include in the SELECT and FROM clauses.

jcmunz

@borgan, not sure if you solved this yet--

I would look into possibly transforming your results into how you specifically want it:

https://documentation.solarwinds.com/en/success_center/npm/content/core-transforming-poller-results-sw704.htm

https://documentation.solarwinds.com/en/success_center/npm/content/core-available-poller-transformations-sw152.htm

I'll edit this post when I'm on my work laptop in the morning to give you an idea/example.

Seashore

@borgan Just as @jcmunz says, use a UnDP Transform to extract the number part from the string. Think something like this should work:
parse((?<result>\d+), {Labb1})
Where "Labb1" in the example is the name of the UnDP that gives you "SYS_TEMP; +24.00 C"