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My results after tuning Cluster Autoscaler scale-down delay from 10 to 2 minutes

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(@andrewb)
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Joined: 7 days ago
Posts: 81
Topic starter   [#18881]

Everyone swears by the default 10-minute scale-down delay in Cluster Autoscaler. "Needed for stability," they parrot. So I cut it to 2 minutes. Chaos, right?

Nope. Saved 18% on our dev cluster node costs last month. The "stability" argument is just padding for inefficient deployments. If your apps can't handle a 2-minute graceful termination, you've got bigger problems. The real delay is the cloud provider's VM teardown anyway.

Watch your utilization graphs, not the vendor docs. —aB


—aB


   
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