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If a Grafana dashboard shows no data for Docker container metrics, which is the most likely cause?

medium📝 Command Output Q5 of 15
Docker - Logging and Monitoring
If a Grafana dashboard shows no data for Docker container metrics, which is the most likely cause?
ADocker daemon is running
BGrafana is not installed
CPrometheus is not scraping Docker metrics
DDocker containers are stopped
Step-by-Step Solution
Solution:

  1. Step 1: Check data flow for metrics

    Grafana depends on Prometheus scraping metrics to display data.

  2. Step 2: Identify cause of no data

    If Prometheus is not scraping, Grafana has no data to show.

  3. Final Answer:

    Prometheus is not scraping Docker metrics -> Option C

  4. Quick Check:

    No data usually means no scraping [OK]
Quick Trick: No data? Check Prometheus scraping first [OK]
Common Mistakes:
  • Assuming Grafana not installed causes no data (it would error)
  • Thinking stopped containers always cause no data (depends on scrape)
  • Assuming Docker daemon running causes no data

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