Microservices - Monitoring and Observability
After setting up Prometheus to scrape a microservice endpoint, no metrics appear in the dashboard. What is the most probable cause?
After setting up Prometheus to scrape a microservice endpoint, no metrics appear in the dashboard. What is the most probable cause?
medium📝 Troubleshoot Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Verify metrics endpoint format
Prometheus requires metrics to be exposed in its specific text-based format.Step 2: Check other options
Port differences or push gateway usage might cause issues but are less common than format problems.Step 3: Missing global scrape_interval usually defaults to 15s and doesn't prevent scraping.
Final Answer:
The microservice's metrics endpoint is not exposing data in Prometheus format -> Option BQuick Check:
Metrics must be in Prometheus exposition format [OK]
Quick Trick: Metrics endpoint must expose Prometheus-formatted data [OK]
Common Mistakes:
MISTAKES- Ignoring metrics format requirements
- Assuming port mismatch always causes no data
- Confusing push gateway usage with scraping failure
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