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During a Strangler fig migration, what is the risk of switching all user traffic to new microservices before they fully support all legacy features?

medium📝 Analysis Q6 of 15
Microservices - Migration from Monolith
During a Strangler fig migration, what is the risk of switching all user traffic to new microservices before they fully support all legacy features?
AThe legacy system will become overloaded with requests
BUsers may experience failures or missing functionality due to incomplete feature support
CThe new microservices will automatically fallback to legacy features
DThere will be no impact as new microservices handle all requests seamlessly
Step-by-Step Solution
Solution:
  1. Step 1: Understand feature readiness

    New microservices must fully support features before handling traffic.
  2. Step 2: Analyze impact of premature routing

    Routing all traffic too early causes failures or missing features.
  3. Final Answer:

    Users may experience failures or missing functionality due to incomplete feature support -> Option B
  4. Quick Check:

    Premature traffic switch leads to broken user experience [OK]
Quick Trick: Switch traffic only after full feature support [OK]
Common Mistakes:
  • Assuming new services can handle all features immediately
  • Ignoring partial feature migration status
  • Overloading legacy system by not routing traffic properly

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