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@Shiyinghaha Shiyinghaha commented Nov 25, 2025

Summary

User concern: chronon occasionally randomly produce duplicate records for joins, retry will solve the issue and hard to replicate, solution is to add this alert to fail the job if duplication occurs so that we will be notified and auto-retry will likely resolve the job

Throwing exception when encountering duplicates (should be distinct on key col or key col + ts) in join part calculation

Default is not enabled, users can choose enable by setting joinPartUniquenessCheck to true

Why / Goal

Test Plan

  • Added Unit Tests
  • Covered by existing CI
  • Integration tested

Checklist

  • Documentation update

Reviewers

@pengyu-hou @yuli-han @pkundurthy @hzding621

@Shiyinghaha Shiyinghaha marked this pull request as ready for review November 26, 2025 19:00
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3 participants