The cluster adds four nodes and removes them again every ten minutes, all night, with flat traffic. Stop it.

Two controllers with different opinions and no shared hysteresis. Flat traffic with an oscillating node count means the loop is driven by something other than demand, and the candidates are few.

Updated Sep 2026 · 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.

Two controllers with different opinions and no shared hysteresis. Flat traffic with an oscillating node count means the loop is driven by something other than demand, and the candidates are few.

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