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  1. Spark
  2. SPARK-37063 SQL Adaptive Query Execution QA: Phase 2
  3. SPARK-35414

Completely fix the broadcast timeout issue in AQE

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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • 3.0.0, 3.0.1
    • None
    • SQL
    • None

    Description

      SPARK-33933 report a issue that in AQE, when the resources is limited, broadcast timeout could happened. 

      #31269 gives a partial fix by reorder newStages by class type to make sure BroadcastQueryState precede others when calling materialized(). However, it only guarantee that the order of task to be scheduled in normal circumstances, but, the guarantee is not strict since the submit of broadcast job and shuffle map job are in different thread.

      So we need a completely fix to avoid the edge case triggering broadcast timeout.

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              Unassigned Unassigned
              zhongyu09 Yu Zhong
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