influxdata / influxdata/telegraf
[inputs.win_perf_counters] skip "error while getting value for counter" for hyper-v
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Description
### Relevant telegraf.conf
```toml
[[inputs.win_perf_counters]]
[[inputs.win_perf_counters.object]]
ObjectName = "Hyper-V Hypervisor Virtual Processor"
Instances = ["*"]
Measurement = "hyperv_processor"
Counters = [
"% Guest Run Time",
"% Hypervisor Run Time",
"% Idle Time",
"% Total Run Time"
]
```
### Logs from Telegraf
```text
2024-10-28T13:02:30Z E! [inputs.win_perf_counters] Error in plugin: error during collecting data on host "localhost": error while getting value for counter "\\Hyper-V Hypervisor Virtual Processor(*)\\% Guest Run Time": The data item has been added to the query, but has not been validated or accessed. No other status information about this data item is available.
2024-10-28T13:02:45Z E! [inputs.win_perf_counters] Error in plugin: error during collecting data on host "localhost": error while getting value for counter "\\Hyper-V Hypervisor Virtual Processor(*)\\% Guest Run Time": The data item has been added to the query, but has not been validated or accessed. No other status information about this data item is available.
```
### System info
Windows Server 2019 - Hyper-v
### Docker
_No response_
### Steps to reproduce
1. Run a Hyper-v host with vms
2. Run Telegraf
3. Remove or stop all VMs
4. See logs
...
### Expected behavior
[inputs.win_perf_counters] to ignore or handle the temporarily missing counter to not break the scraping of metrics.
### Actual behavior
When no vm is running on a hyper-v host, the following (and maybe even more) counters are not filled with values/dont exists:
ObjectName = "Hyper-V Hypervisor Virtual Processor" - "% Guest Run Time"
ObjectName = "Hyper-V Hypervisor Logical Processor" - "% Guest Run Time"
Telegraf then returns the error from the [inputs.win_perf_counters] plugin. With this no other metric is collected anymore.
When turning on a VM the error is fixed and metrics are collected again.
### Additional info
_No response_
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Assessment
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