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kubernetes
Investigate API Throttling in Node Controller
ref: https://github.com/kubernetes/kubernetes/issues/75016
For large clusters, we're seeing API throttling from providers becoming more common. Taking node-controller as an example, it will call a "get node" api request per node on every sync loop. For a 1000 node cluster that's could be 1000 get requests per minute which can result in users running out of API quotas.
SIG OpenStack has seen similar issues, but we're addressing in our own implementations. We would welcome a generic solution if one would be appropriate, but we're fine with adding cloud-specific tuning variables on our provider.
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If folks have user stories on how bad the API throttling is for clusters that would be really helpful in determining the priority for this issue.
Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.
If this issue is safe to close now please do so with /close.
Send feedback to sig-testing, kubernetes/test-infra and/or fejta. /lifecycle stale
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