Idempotence crucial for safe retry of bulk operations, says expert

A technology expert writing on DEV Community advises that bulk operations must be designed to be safely retryable. Such processes can fail midway due to network issues or timeouts, requiring restarting. A dangerous design would create duplicates or double-process records if rerun without safeguards. The author states idempotence—applying an operation multiple times without changing the final result—requires stable keys, explicit states, and logs to track progress. This deliberate design ensures 'run it again' is a safe instruction.