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Code Generation Logics in SorterTemplateModel

2. Changes in existing Flink code

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Classes that use NormalizedKeySorter will be updated at locations that they instantiate NormalizedKeySorter. As a result, code generation will be done on TaskManager. Therefore, instances of generated classes won’t need to be serialized and shipped across machines. Here is the list of classes that directly instantiate NormalizedKeySorter, and therefore will be directly affected by this improvement. 

• • • GroupCombineChainedDriver

    • ChainedReduceCombineDriver

    • SynchronousChainedCombineDriver

    • CombiningUnilateralSortMerger

    • UnilateralSortMerger

    • MemorySegment

    • ExecutionConfig

    • TaskManagerConfiguration

    • MultipleProgramsTestBase

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Compatibility, Deprecation, and Migration Plan

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