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Given a microservices setup with Istio service mesh, what happens when a service-to-service call fails due to network issues?

medium📝 Command Output Q13 of 15
Microservices - Service Mesh
Given a microservices setup with Istio service mesh, what happens when a service-to-service call fails due to network issues?
AIstio retries the call automatically based on configured policies
BThe call fails immediately without retries
CIstio shuts down the service permanently
DThe service mesh ignores the failure and logs no information
Step-by-Step Solution
Solution:

  1. Step 1: Understand Istio's retry feature

    Istio can automatically retry failed calls to improve reliability.

  2. Step 2: Eliminate incorrect behaviors

    Istio does not shut down services or ignore failures silently; it logs and manages retries.

  3. Final Answer:

    Istio retries the call automatically based on configured policies -> Option A

  4. Quick Check:

    Istio retries failed calls = true [OK]
Quick Trick: Istio retries failed calls automatically if configured [OK]
Common Mistakes:
MISTAKES
  • Assuming no retries happen on failure
  • Thinking Istio shuts down services on failure
  • Believing failures are ignored silently

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