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← All break/fix scenarios in Observability

advancedobservability-scaling~30 min

Break/Fix: Upgrade Breaks Configuration

Reported symptoms

  • ●A recent upgrade broke the platform

Evidence

  • · Prometheus / Loki / Tempo not functioning post-upgrade
Diagnosis and resolutionclick to reveal

Root cause

Upgrade introduced a breaking change.

Remediation

1. Identify the breaking change. 2. Roll back. 3. Validate.

Verification

Platform is restored.

Prevention

Test upgrades in staging

Scenario

You are operating a production observability platform. The following symptoms appear:

  • A recent upgrade broke the platform

Available evidence:

  • Prometheus / Loki / Tempo not functioning post-upgrade

Your task

Determine the cause, recover, document, and validate.

Investigation

The investigation follows the discipline taught in Part XCVIII:

  1. Form hypothesis, find evidence, test, validate.
  2. Use the available evidence above to bound the search.
  3. Reach one of the likely root causes.

Recovery procedure

(Do not reveal until you have reasoned through the problem.)

  1. Identify the failing component.
  2. Apply the remediation pathway.
  3. Validate with the verification step.
  4. Document the incident.

Remediation

  1. Identify the breaking change. 2. Roll back. 3. Validate.

Verification

Platform is restored.

Rollback

Revert

Prevention

Test upgrades in staging