adithyachakilam opened a new pull request, #16905:
URL: https://github.com/apache/druid/pull/16905
### Description
This PR add the support for cgroup monitors for v2. For now, only the usage
of cpu/disk/memory are being supported.
#### Release note
New monitors for cgroups v2 are now available to track usage of
cpu/disk/memory.
<hr>
##### Key changed/added classes in this PR
* `CgroupV2CpuMonitor`
* `CgroupV2DiskMonitor`
* `CgroupV2MemoryMonitor`
<hr>
This PR has:
- [x] been self-reviewed.
- [ ] using the [concurrency
checklist](https://github.com/apache/druid/blob/master/dev/code-review/concurrency.md)
(Remove this item if the PR doesn't have any relation to concurrency.)
- [x] added documentation for new or modified features or behaviors.
- [x] a release note entry in the PR description.
- [x] added Javadocs for most classes and all non-trivial methods. Linked
related entities via Javadoc links.
- [ ] added or updated version, license, or notice information in
[licenses.yaml](https://github.com/apache/druid/blob/master/dev/license.md)
- [x] added comments explaining the "why" and the intent of the code
wherever would not be obvious for an unfamiliar reader.
- [x] added unit tests or modified existing tests to cover new code paths,
ensuring the threshold for [code
coverage](https://github.com/apache/druid/blob/master/dev/code-review/code-coverage.md)
is met.
- [ ] added integration tests.
- [x] been tested in a test Druid cluster.
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