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K8s L4 K8S 1576 · 8 min

A CoreDNS rewrite rule changes and one service still resolves the old suffix because the plugin chain preserves the previous match order

The new rewrite is configured, but one plugin chain still applies the older suffix rule first.

K8sPlatform ReliabilityLevel 4Pro8 min
Scenario

One service keeps resolving the old suffix after a CoreDNS rewrite update.

What to check first
  • Identify the primary failure signal in the The Street Signs Were Replaced and One Neighborhood Map Still Listed the Shortcut by the Name Used Before the District Was Redrawn scenario.
  • Separate visible symptoms from the underlying technical dependency.
  • Describe the safest recovery path and the follow-up prevention work.
Checking checklist
  1. Summarize the current impact and the last known change.
  2. Collect direct evidence from logs, runtime state, and configuration before changing anything.
  3. Separate immediate recovery from permanent prevention work.
Recovery and prevention

Inspect plugin ordering before restarting DNS.

Questions worth viewing together
Should I translate commands, logs, or product names?

No. Keep commands, logs, file names, APIs, and product names unchanged, then explain the reasoning in the selected UI language.

What should the answer focus on?

State the root cause, the evidence that supports it, and the safest recovery direction.

Why can the scenario remain in the original language?

The source scenario is treated as an incident artifact. Guidance, checklist, hints, and explanations can be localized around it.