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← All break/fix scenarios in Observability

intermediategrafana-datasource~20 min

Break/Fix: Grafana Data Source Unavailable

Reported symptoms

  • ●A panel shows \"Data source not found\"

Evidence

  • · Test connection fails
Diagnosis and resolutionclick to reveal

Root cause

The data source URL or credentials are wrong.

Remediation

1. Test connection. 2. Fix URL or credentials. 3. Re-test.

Verification

Data source returns OK; panels render.

Prevention

Datasources are provisioned as code

Scenario

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

  • A panel shows “Data source not found”

Available evidence:

  • Test connection fails

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. Test connection. 2. Fix URL or credentials. 3. Re-test.

Verification

Data source returns OK; panels render.

Rollback

Revert configuration

Prevention

Datasources are provisioned as code