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A cluster upgrade has been stuck on one node for forty minutes and the drain never completes. What is holding it?

A drain that hangs without erroring is almost always eviction being refused, and the two refusals that look identical from the outside have opposite fixes.

Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

A drain that hangs without erroring is almost always eviction being refused, and the two refusals that look identical from the outside have opposite fixes.

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