Microservices - CI/CD for Microservices
In a rolling update, if a failure is detected in version 3 of the service, what is the expected rollback behavior?
In a rolling update, if a failure is detected in version 3 of the service, what is the expected rollback behavior?
medium📝 Analysis Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand rolling update rollback
Rolling update replaces versions incrementally; rollback reverts to last stable version.Step 2: Identify correct rollback target
If version 3 fails, rollback goes back to version 2, the last stable version.Final Answer:
Rollback to version 2 and stop further updates -> Option AQuick Check:
Failure in version 3 = rollback to version 2 [OK]
Quick Trick: Rollback reverts to last stable version in rolling update [OK]
Common Mistakes:
- Ignoring errors and continuing updates
- Rolling back too far to version 1
- Redeploying faulty version
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