JingsongLi commented on a change in pull request #10210: [FLINK-14800][hive]
Introduce parallelism inference for HiveSource
URL: https://github.com/apache/flink/pull/10210#discussion_r352567504
##########
File path:
flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/connectors/hive/HiveTableSource.java
##########
@@ -100,10 +110,41 @@ private HiveTableSource(JobConf jobConf, ObjectPath
tablePath, CatalogTable cata
}
@Override
- public InputFormat getInputFormat() {
+ public boolean isBounded() {
+ return true;
+ }
+
+ @Override
+ public DataStream<Row> getDataStream(StreamExecutionEnvironment
execEnv) {
if (!initAllPartitions) {
initAllPartitions();
}
+ @SuppressWarnings("unchecked")
+ TypeInformation<Row> typeInfo = (TypeInformation<Row>)
fromDataTypeToTypeInfo(getProducedDataType());
+ HiveTableInputFormat inputFormat = getInputFormat();
+ DataStreamSource<Row> source = execEnv.createInput(inputFormat,
typeInfo);
+
+ Configuration conf = GlobalConfiguration.loadConfiguration();
+ if (conf.getBoolean(TABLE_EXEC_HIVE_INFER_SOURCE_PARALLELISM)) {
+ int max =
conf.getInteger(TABLE_EXEC_HIVE_INFER_SOURCE_PARALLELISM_MAX);
Review comment:
It is a config option, it has default value. Don't need force user to
configure it.
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