Flask - Deployment
You deployed a Flask app but users report it crashes under load. You notice you used
app.run() directly on the server. What is the most likely cause?You deployed a Flask app but users report it crashes under load. You notice you used app.run() directly on the server. What is the most likely cause?
medium📝 Debug Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Identify Flask's built-in server limitations
Flask's built-in server is single-threaded and not designed for heavy traffic.Step 2: Connect server crash to load handling
Under load, the server cannot handle multiple requests, causing crashes.Final Answer:
Flask's built-in server is single-threaded and not suitable for production -> Option BQuick Check:
Server crash cause = B [OK]
Quick Trick: Use a production WSGI server to handle load [OK]
Common Mistakes:
MISTAKES- Blaming missing database connection
- Assuming debug mode causes crashes under load
- Thinking missing route causes server crash
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