[FLINK-36682][mysql][mongodb] Add scan.chunk.assign.strategy to avoid OOM exception. #3704
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…ol whether assign evenly splits in reverse order to avoid OOM exception.
yuxiqian
reviewed
Nov 9, 2024
Comment on lines
162
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175
| public static final ConfigOption<Boolean> SCAN_FLATTEN_NESTED_COLUMNS_ENABLED = | ||
| ConfigOptions.key("scan.flatten-nested-columns.enabled") | ||
| .booleanType() | ||
| .defaultValue(false) | ||
| .withDescription( | ||
| "Optional flag to recursively flatten the Bson field into columns." | ||
| + "For a better understanding, the name of the flattened column will be composed of the path to get the column. " | ||
| + "For example, the field `col` in the Bson document {\"nested\": {\"col\": true}} is `nested.col` in the flattened schema. "); | ||
|
|
||
| public static final ConfigOption<Boolean> SCAN_PRIMITIVE_AS_STRING = | ||
| ConfigOptions.key("scan.primitive-as-string") | ||
| .booleanType() | ||
| .defaultValue(false) | ||
| .withDescription("Optional flag to infer primitive types as string type."); |
…ol whether assign evenly splits in reverse order to avoid OOM exception.
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Introduce a new config option scan.chunk.assign.strategy to control the order of split assignment.