Load Testing · Senior · Question 42 of 76
Under write load, read replicas fall behind. What should the test verify?
- 1That replicas get the same write load as the primary
- 2That the primary accepts no reads during the test
- 3Replication lag and whether the app tolerates stale reads
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Correct answer: Replication lag and whether the app tolerates stale reads
Explanation
Lag can break read-after-write flows: a user saves and then doesn't see the change. Measure lag and check user-visible correctness.