-
Notifications
You must be signed in to change notification settings - Fork 38.7k
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
[WIP] kubelet: Add metric for pod startup latency for each pod when the pod becomes ready #124935
base: master
Are you sure you want to change the base?
[WIP] kubelet: Add metric for pod startup latency for each pod when the pod becomes ready #124935
Conversation
Welcome @JeffLuoo! |
This issue is currently awaiting triage. If a SIG or subproject determines this is a relevant issue, they will accept it by applying the The Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. |
Hi @JeffLuoo. Thanks for your PR. I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with Once the patch is verified, the new status will be reflected by the I understand the commands that are listed here. Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. |
[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: JeffLuoo The full list of commands accepted by this bot can be found here.
Needs approval from an approver in each of these files:
Approvers can indicate their approval by writing |
What type of PR is this?
/kind feature
What this PR does / why we need it:
Add a new metrics to record the end-to-end startup latency of the pod since pod created to pod ready for the first time. The metrics will include all stages of the pod life cycle like scheduling and image pulling.
Kubelet currently reports a Histogram metric
pod_start_total_duration_seconds
that gives users overview of the pod end-to-end startup latency from pod creation to pod running. However, pod ready will usually be the signal to say that a pod is ready to serve traffic.Having the new metric will allow users to track how long it takes for their pods under the workload to fully start and ready to serve traffic, and with the metrics label of node_name, this metric can be a supplementation to the existing metric
pod_start_total_duration_seconds
if users want to track the node-level pod end-to-end startup latency from creation to ready.Also, user could aggregate the metric by the workload (Deployment, StatefulSet, and etc.) to present the workload-level pod end-to-end startup latency.
Which issue(s) this PR fixes:
Fixes #124892
Special notes for your reviewer:
Does this PR introduce a user-facing change?
Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.: