Database / InfluxDb interview questions II

How do you prevent duplicate ingestion from multiple collectors?

Define source identity tags, dedup logic, and collector coordination to avoid double-counting.

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Which choice most accurately reflects the guidance in this answer: How do you prevent duplicate ingestion from multiple collectors? Ignore ingestion lag and assume delayed writes have no operational impact.

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Use batching, controlled retries, and stable schemas to protect write reliability.

✓ Correct! Well done.

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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If you had to operationalize this tomorrow, what is the best move for: How do you prevent duplicate ingestion from multiple collectors? 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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Increase tag cardinality aggressively to handle any write bottleneck.

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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

How do you prevent duplicate ingestion from multiple collectors?

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