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  1. Apache Drill
  2. DRILL-6435

MappingSet is stateful, so it can't be shared between threads

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.14.0
    • None

    Description

      There are several instances where static MappingSet instances are used (for example NestedLoopJoinBatch and BaseSortWrapper). This causes instance reuse across threads when queries are executed concurrently. As MappingSet is a stateful class with visitor design pattern, such reuse causes invalid state.

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            vrozov Vlad Rozov
            vrozov Vlad Rozov
            Paul Rogers Paul Rogers
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