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  1. Apache Drill
  2. DRILL-6435

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

          Details

          • Type: Bug
          • Status: Resolved
          • Priority: Major
          • Resolution: Fixed
          • Affects Version/s: None
          • Fix Version/s: 1.14.0
          • Component/s: None
          • Labels:

            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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                causes

                Bug - A problem which impairs or prevents the functions of the product. DRILL-6416 Unit test TestTpchDistributedConcurrent.testConcurrentQueries fails with AssertionError

                • Major - Major loss of function.
                • Resolved
                is caused by

                Improvement - An improvement or enhancement to an existing feature or task. DRILL-5325 Implement sub-operator unit tests for managed external sort

                • Major - Major loss of function.
                • Resolved

                Improvement - An improvement or enhancement to an existing feature or task. DRILL-6094 Decimal data type enhancements

                • Major - Major loss of function.
                • Closed
                links to

                Web Link GitHub Pull Request #1286

                  Activity

                    People

                    • Assignee:
                      vrozov Vlad Rozov
                      Reporter:
                      vrozov Vlad Rozov
                      Reviewer:
                      Paul Rogers
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                      Dates

                      • Created:
                        Updated:
                        Resolved: