CRI runtimes do not supply cpu nano core usage as it is not part of CRI
stats. However, there are upstream components that still rely on such
stats to function. The previous fix was faulty because the multiple
callers could compete and update the stats, causing
inconsistent/incoherent metrics. This change, instead, creates a
separate call for updating the usage, and rely on eviction manager,
which runs periodically, to trigger the updates. The caveat is that if
eviction manager is completley turned off, no one would compute the
usage.
GetPodCgroupNameSuffix is only implemented for Linux, which mean
that CPU and Memory stats are only available on Linux.
My fix to make the test pass on other OS:es than Linux
is to just check CPU and Memory stats on Linux.
(This is similar to #57637 which fixed the same problem for the
test TestCadvisorListPodStats.)
This also incorporates the version string into the package name so
that incompatibile versions will fail to connect.
Arbitrary choices:
- The proto3 package name is runtime.v1alpha2. The proto compiler
normally translates this to a go package of "runtime_v1alpha2", but
I renamed it to "v1alpha2" for consistency with existing packages.
- kubelet/apis/cri is used as "internalapi". I left it alone and put the
public "runtimeapi" in kubelet/apis/cri/runtime.
This commit addresses the issue described here
https://github.com/kubernetes-incubator/cri-containerd/issues/341
The changes include using cadvisor stats in addition to CRI stats
for CRI runtimes. As described in the issue above , the CRI stats
currently doesnt provide all the necessary stats for the kubelet.
This commit addreses the need to extract stats from cadvisor which
is not available as CRI stats.
Signed-off-by: abhi <abhi@docker.com>
This PR adds pod-level ephemeral storage metric into Summary API.
Pod-level ephemeral storage usage is the sum of all containers and local
ephemeral volume including EmptyDir (if not backed up by memory or
hugepages), configueMap, and downwardAPI.
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Filter out duplicated container stats
**What this PR does / why we need it**:
**Which issue this PR fixes** *
fixes#53514
**Special notes for your reviewer**:
/cc @Random-Liu
Signed-off-by: Yanqiang Miao <miao.yanqiang@zte.com.cn>
