Microservices - Configuration and Secrets Management
Given a microservice that reads config from a file at startup, what happens if the config file is updated while the service is running?
Given a microservice that reads config from a file at startup, what happens if the config file is updated while the service is running?
medium📝 Analysis Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand config loading behavior
Most services load config once at startup and keep it in memory.Step 2: Analyze effect of file update at runtime
Updating the config file while running does not affect the service until it reloads or restarts.Final Answer:
The service continues using old config until restarted -> Option AQuick Check:
Config reload = Requires restart unless hot reload implemented [OK]
Quick Trick: Config file changes need restart to take effect unless hot reload [OK]
Common Mistakes:
- Assuming config reloads automatically
- Thinking service crashes on config change
- Ignoring config file usage
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