[flink] Make DPP distribute the splits fairly for flink #4348
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wwj6591812
reviewed
Oct 19, 2024
| * then distribute the splits fairly. | ||
| */ | ||
| public class DynamicPartitionPruningPreAssignSplitAssigner extends PreAssignSplitAssigner { | ||
| public DynamicPartitionPruningPreAssignSplitAssigner( |
| .collect(Collectors.toList())); | ||
| } | ||
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| private static boolean filter( |
| .collect(Collectors.toList())); | ||
| } | ||
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| private static boolean filter( |
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Change DynamicPartitionPruningAssigner#filter to public static, and then delete DynamicPartitionPruningPreAssignSplitAssigner#filter?
.../org/apache/paimon/flink/source/assigners/DynamicPartitionPruningPreAssignSplitAssigner.java
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Purpose
The existing DPP assigner implementation first assigns fairly and then assigns according to DPP, which may result in uneven splits for different tasks.