SIG Scheduling Deep Dive

on YouTube ↗29m

" summary

Kube-Scheduler now exposes a pluggable framework and a component config API that enables scheduling profiles (since 1.18) so one cluster image can run multiple flavors like bin-pack or skip-score; the framework reaches GA around 1.20, and 1.19 adds the post-filter extension to replace hardcoded preemption. Cluster-level knobs include percentageOfNodesToScore for very large clusters; scheduler-plugins and a scheduler-plugins subproject provide ready examples (gang scheduling, capacity scheduling) compiled into images for direct use.

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" chapters (17)

1. 0:00Intro
2. 0:51App developer Audience users who write & deploy containerized application onto kəs • Goal: Understand kube-scheduler basics, identify whether it's a scheduler issue, and how to use scheduler features • Non-Goal: Understand scheduler internals
3. 2:21Scheduler Do's and don'ts Virtual • kube-scheduler do's and don'ts Quota enforcement
4. 3:30Filtering
5. 5:48Scoring
6. 8:47Preemption • What if no node can satisfy all the Hard Constraints? • Preemption
7. 9:57Scheduling Flow
8. 11:27Cluster admin / Devops Virtual Audience cluster admin/devops • Goal: master scheduler configuration best practices, understand scheduler framework basics to make the most of kube-scheduler • Non-goal writing additional scheduler extender / plugin code
9. 12:26Configurations
10. 14:53Plugins-based config. Virtual
11. 16:11Multi-profile schedule
12. 17:44Dive a bit deeper Associate scheduler feature/behavior with the specific plugins Pod Scheduling Contest
13. 18:13Enabled plugin list cheduling plugins
14. 19:13Day 2 - Wrap-up
15. 21:21Enthusiast / Innovatot Audience: scheduling enthusiast/ innovator . Goal: extend scheduler to fit diverse workloads, by writing as minimum code as possible • Non-Goal: start from scratch to write a secondary scheduler
16. 25:25Day 3 - Build your own scheduler
17. 26:31Day 3 - scheduler-plugins

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