FeiZou commented on issue #3418:
URL: https://github.com/apache/hudi/issues/3418#issuecomment-913923452
Hey @nsivabalan, actually as I checked, the duplicates has nothing to do
with `upsert`, it happened during the `bulk_insert`.
A proof is that 2 duplicates rows with same key but different `data_updated`
existing in same partition. They have same `hoodie_commit_time` 20210817130414,
same `hoodie_record_key` RE2dd866834bea72ac37612d3f57afe58c. Shouldn't these 2
duplicated rows been combined before writing into the data lake?
Adding the config for `bulk_insert` for your reference:
```
val hudiOptions = Map[String,String](
HoodieWriteConfig.TABLE_NAME -> "recordings_hudi",
HoodieWriteConfig.COMBINE_BEFORE_INSERT_PROP -> "true",
HoodieIndexConfig.INDEX_TYPE_PROP -> "GLOBAL_BLOOM",
DataSourceWriteOptions.HIVE_STYLE_PARTITIONING_OPT_KEY ->
"true",
DataSourceWriteOptions.ENABLE_ROW_WRITER_OPT_KEY -> "true",
DataSourceWriteOptions.OPERATION_OPT_KEY ->
DataSourceWriteOptions.BULK_INSERT_OPERATION_OPT_VAL,
DataSourceWriteOptions.PARTITIONPATH_FIELD_OPT_KEY ->
"data_load_date",
DataSourceWriteOptions.KEYGENERATOR_CLASS_OPT_KEY ->
"org.apache.hudi.keygen.SimpleKeyGenerator",
DataSourceWriteOptions.TABLE_TYPE_OPT_KEY -> "COPY_ON_WRITE",
DataSourceWriteOptions.RECORDKEY_FIELD_OPT_KEY -> "sid",
DataSourceWriteOptions.PRECOMBINE_FIELD_OPT_KEY ->
"date_updated")
```
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