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This article explains how to reset the counter of CPU cores when added to a Windows VM. |
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Problem
Since the increasing increase of the cores on the Windows VM, the graphs shows show constant values without any change.
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The Windows Agent is executing executes the following commands to get the values:
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Get-WmiObject -class Win32_PerfRawData_PerfOS_System -namespace root\cimv2 |Format-List *
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Get-WmiObject -class Win32_PerfRawData_PerfOS_System -namespace root\cimv2 |Format-List ProcessorQueueLength |
Solution
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Checkmk is caching these values with the corresponding timestamp. In this case, the new timestamp has a smaller value than the new one. That's why Checkmk is always presenting the old/constant values. We suspect that this is because of the core modification. It looks like Windows is resetting some system counters.
To solve this, you need to remove the cached counter file:
Stop the site
Code Block language bash theme RDark root@mylinuxhost~# omd stop <SITENAME>.
As site user, you should find this file: ~/tmp/check_mk/counters/<HOSTNAME>. In this file, you need to delete the following section:
Code Block language bash theme RDark title ~/tmp/check_mk/counters/<HOSTNAME> ('wmi_cpuload', None, 'load_5min'): (29632775.478311848, 18.056825022850912), ('wmi_cpuload', None, 'load_15min'): (29632775.478311848, 15.787631011576273),.
Attached, you will find a screenshot with the marked section:
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Start the site
Code Block language bash theme RDark root@mylinuxhost~# omd start <SITENAME>
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