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[receiver/kubeletstats] Add k8s.pod.cpu.node.utilization metric #33390

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merged 11 commits into from
Jun 14, 2024

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@ChrsMark ChrsMark commented Jun 5, 2024

Description:

This PR adds the k8s.pod.cpu.node.utilization metric.
Follow up from #32295 (comment) (cc @TylerHelmuth) .

Link to tracking Issue:
Related to #27885.

Testing: Adjusted the respective unit test to cover this metric as well.

Documentation: Added

Tested with a single container Pod:

podCpu

@ChrsMark ChrsMark requested a review from a team June 5, 2024 09:03
@ChrsMark ChrsMark force-pushed the add_k8s_pod_utilization branch 4 times, most recently from 0829cbb to 49f4e75 Compare June 5, 2024 10:07
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LGTM

@TylerHelmuth TylerHelmuth merged commit 8522b4e into open-telemetry:main Jun 14, 2024
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@github-actions github-actions bot added this to the next release milestone Jun 14, 2024
andrzej-stencel pushed a commit that referenced this pull request Jul 10, 2024
…ion` metrics (#33591)

**Description:** <Describe what has changed.>
<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
Similar to
#32295
and
#33390,
this PR adds the `k8s.{container,pod}.memory.node.utilization` metrics.


**Link to tracking Issue:** <Issue number if applicable>
#27885

**Testing:** <Describe what testing was performed and which tests were
added.> Added unit test.

**Documentation:** <Describe the documentation added.> Added

### Manual testing

1. Using the following target Pod:
```yaml
apiVersion: v1
kind: Pod
metadata:
  name: memory-demo
spec:
  containers:
  - name: memory-demo-ctr
    image: polinux/stress
    resources:
      requests:
        memory: "8070591Ki"
      limits:
        memory: "9070591Ki"
    command: ["stress"]
    args: ["--vm", "1", "--vm-bytes", "800M", "--vm-hang", "4"]
```
2. 

![memGood](https://github.com/open-telemetry/opentelemetry-collector-contrib/assets/11754898/fae04b30-59ca-4d70-8446-f54b5a085cf7)

On a node of 32,5G memory the 800Mb container/Pod consumes the
`0.8/32.5=0.0246...=0.025`.

---------

Signed-off-by: ChrsMark <[email protected]>
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5 participants