tvxer opened a new issue, #10916:
URL: https://github.com/apache/hudi/issues/10916
**Describe the problem you faced**
I ran a test reading 1 day worth of data vs 30 days worth of data from the
external table to s3 in hudi format, and the amount of time it takes are
roughly the same. I have also changed the write operation from upsert to
insert, and it made no difference.
The file is not that large, each day has about 1m records from the external
table. In s3, each file has an average size of 25MB partition by the date and
hour. The whole process is pretty copying and writing to s3, so there aren't
any transformation process in between beside changing the data type.
Is there anything I can do to improve the speed?
```
hudi_options = {
'hoodie.table.name': table_name,
"hoodie.datasource.write.storage.type": "COPY_ON_WRITE",
'hoodie.datasource.write.recordkey.field': 'recordkey1, recordkey2',
'hoodie.datasource.write.table.name': table_name,
'hoodie.datasource.write.operation': 'insert',
'hoodie.datasource.write.precombine.field': 'timestamp',
'hoodie.datasource.write.partitionpath.field': 'date, hour',
'hoodie.datasource.write.hive_style_partitioning': 'true',
'hoodie.datasource.hive_sync.partition_fields': 'date, hour',
'hoodie.datasource.hive_sync.enable': 'true',
"hoodie.datasource.hive_sync.mode":"hms",
'hoodie.datasource.hive_sync.sync_as_datasource': 'false',
'hoodie.datasource.hive_sync.database': database_name,
'hoodie.datasource.hive_sync.table': table_name,
'hoodie.datasource.hive_sync.use_jdbc': 'false',
'hoodie.datasource.hive_sync.partition_extractor_class':
'org.apache.hudi.hive.MultiPartKeysValueExtractor',
'hoodie.datasource.hive_sync.support_timestamp': 'true',
'hoodie.cleaner.policy': 'KEEP_LATEST_FILE_VERSIONS',
'hoodie.clustering.plan.strategy.max.bytes.per.group': '107374182400',
'hoodie.clustering.plan.strategy.max.num.groups': '1'
}
```
**Expected behavior**
A clear and concise description of what you expected to happen.
**Environment Description**
* Hudi version : 0.12.1
* Spark version : 3.3
* Hive version : not sure
* Hadoop version : not sure
* Storage (HDFS/S3/GCS..) : S3
* Running on Docker? (yes/no) : no
<img width="1164" alt="Screenshot 2024-03-23 at 14 33 41"
src="https://github.com/apache/hudi/assets/154420724/0214db92-07f2-4335-ae78-eff8d0f65107";>
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