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Python ETLMediumofficialBenchmark eligiblefree

Idempotent retries

The writer fails transient 5xx then succeeds. Permanent 4xx must not retry forever. Each successful payload must land once even if the attempt is repeated.

FieldDetail
CreatorPipelineArena
Version2.0.0
Time40 min
Scored checks18

Objective

Transient failures succeed; 4xx stop; destination unique; attempts logged.

#Success condition
15xx retried with bound + jitter or Retry-After
24xx not retried
3Payload unique in the destination
4run.log records attempts
#Visible instruction
1Use the flaky writer stub.
2Honor Retry-After when present.
3Make the write idempotent on payload_id.
Scoring checks the leftover tables or files, replay safety, and seeded variations — not the exact syntax you used. Check implementation is never shown to participants.

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