Unix Linux Two state monitoring

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RaviBhushan-3339 asked Jan 22, '21 CyrAz commented Mar 2, '21

Unix Linux Two state monitoring

Hi All,

I have created two monitor for scripts through Unix/Linux two state monitor. The output value set for the alert is 15000 and for the second is 11. If it goes above this it will generate an alert, but for the threshold defined 15000 it is throwing alert even if the output is 50 and similar is going with the second monitor. It is generating alert for the value less than 11 also. Below is the screen shot

![59602-image.png ][3]

[3]: /answers/storage/attachments/59603-image.png

Please help me on this.

Regards,
Ravi Bhushan

msc-operations-manager

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Answer 1 · 2021-01-22T15:20:58.11Z

CyrAz answered Jan 22, '21 RaviBhushan-3339 commented Jan 25, '21

Chances are you are facing a very common issue when creating workflows in the console : the fields are typed as "Strings", not "Integers". Therefore greater/lower comparision are not working as expected.
Read here : https://argonsys.com/microsoft-cloud/library/using-integers-and-other-non-string-data-types-in-rules-and-monitors/

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RaviBhushan-3339 · Jan 25, 2021 at 03:24 PM

Hi @CyrilAzoulay,

I have changed the value from strings to Integers but now it is not throwing any alert. Even for much higher value the status is showing healthy but it should have raised a critical alert.

Regards,
Ravi

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CyrAz RaviBhushan-3339 · Jan 25, 2021 at 05:00 PM

Then maybe there is a different issue in the code. Can you post the full XML code ?

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RaviBhushan-3339 CyrAz · Jan 25, 2021 at 06:37 PM

60381-web.xml

I have attached the xml file.
I am getting issue with monitor error log monitoring and load monitoring. These are newly created.

Regards,
Ravi

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web.xml (1.5 MiB)

Answer 2 · 2021-01-25T19:51:42.583Z

CyrAz answered Jan 25, '21 CyrAz edited Jan 26, '21

I had a quick look at the XML and it seems to be OK, however I also just noticed in the screenshot in your first post that StdOut contains at least two lines : a number and then a "last login" date.
So that's not an integer, and if you have a look at the Operations Manager event log in your SCOM Management Servers you'll probably find errors about the workflow failing to convert data to integer type or something like that.

From there you have two options :
- Modify the .sh scripts so they will output an integer ONLY.
- Modify the SCOM workflow to include a powershell parsing of stdout. In that case I would recommend using the Unix authoring library :
https://social.technet.microsoft.com/wiki/contents/articles/18084.scom-2012-unixlinux-monitoring-with-scripts.aspx#Handling_complex_shell_command_script_output_with_PowerShell_scripts

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RaviBhushan-3339 · Jan 26, 2021 at 03:36 PM

The output was from the task which we created for the testing purpose. The original value for this is an integer value. Attached is the output of the executed script.

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CyrAz RaviBhushan-3339 · Jan 26, 2021 at 03:53 PM

When the agent runs a command, it runs it using the following syntax :

/bin/sh -c "command"

That may produce a different output than the one you're getting when running bash script.sh, so could you try running precisely the following command :

/bin/sh -c "/opt/MastekAutomation/KongErrorCount.sh"

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Answer 3 · 2021-01-26T16:00:30.217Z

CyrAz answered Jan 26, '21 CyrAz commented Mar 2, '21

Also please try running it using the scom agent account, not yours; and even better try running it as a network job using ssh as this will reflect more closely the agent actual behavior :

ssh scomuser@localhost '/bin/sh -c "/opt/MastekAutomation/KongErrorCount.sh"'

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RaviBhushan-5427 · Feb 19, 2021 at 03:14 PM

We tried with the same but still getting the same issue. In SCOM console it is giving
the output is a string "54/nLast login: (...):

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CyrAz RaviBhushan-5427 · Feb 19, 2021 at 08:48 PM

I'm not following, you said previously you were sure the output was an integer. If it's a string, you obviously can't make a numerical comparison

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RaviBhushan-5427 CyrAz · Feb 20, 2021 at 08:18 PM

The Output on unix machine is giving integer value. But on SCOM console it is giving the output as a string "54/nLast login.

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