Database / InfluxDb interview questions II

What does idempotency mean for time-series writes?

Idempotency means repeated ingestion attempts do not corrupt outcomes; design keys and write logic to tolerate retries.

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Which choice most accurately reflects the guidance in this answer: What does idempotency mean for time-series writes? Use batching, controlled retries, and stable schemas to protect write reliability.

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Send single-point writes without retries to reduce client complexity.

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Use random tags on every event to maximize write distribution.

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Ignore ingestion lag and assume delayed writes have no operational impact.

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If you had to operationalize this tomorrow, what is the best move for: What does idempotency mean for time-series writes? Increase tag cardinality aggressively to handle any write bottleneck.

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Turn off retry logic and rely on manual replays when failures appear.

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Optimize dashboards first and defer ingestion correctness to later phases.

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Define retry/backoff policy and monitor lag/error metrics before scaling traffic.

✓ Correct! Well done.

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Database / InfluxDb interview questions II

What does idempotency mean for time-series writes?

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