gnailJC opened a new issue, #2385: URL: https://github.com/apache/incubator-paimon/issues/2385
### Search before asking - [X] I searched in the [issues](https://github.com/apache/incubator-paimon/issues) and found nothing similar. ### Paimon version [paimon-spark-3.3-0.6-20231122.093342-69.jar](https://repository.apache.org/content/groups/snapshots/org/apache/paimon/paimon-spark-3.3/0.6-SNAPSHOT/paimon-spark-3.3-0.6-20231122.093342-69.jar) ### Compute Engine https://www.apache.org/dyn/closer.lua/spark/spark-3.3.3/spark-3.3.3-bin-hadoop3.tgz ### Minimal reproduce step ```python spark.sql(""" CREATE TABLE IF NOT EXISTS paimon.tdr.ods_tbl ( _id STRING NOT NULL, update_time TIMESTAMP) USING paimon TBLPROPERTIES ( 'bucket' = '-1', 'dynamic-bucket.assigner-parallelism' = '32', 'dynamic-bucket.target-row-num' = '2000000', 'merge-engine' = 'partial-update', 'path' = '', 'primary-key' = '_id', 'tag.creation-period' = 'daily', 'tag.num-retained-max' = '30', 'write.merge-schema' = 'true', 'write.merge-schema.explicit-cast' = 'true') """).show() schema = spark.sql('select * from tdr.ods_tbl limit 0').schema full_data_reader = ( spark.read .format('mongodb') .schema(schema) .option('database', '') .option('collection', '') .option('connection.uri', '') ) full_data_df = full_data_reader.load() full_data_writer = ( full_data_df.write .option('write-buffer-size', '256MB') .option('target-file-size', '256MB') .option('num-sorted-run.stop-trigger', '2147483647') .option('sort-spill-threshold', '2') .option('write-buffer-spillable', 'true') ) full_data_writer.save( 'oss://**', format='paimon', mode='append' ) ``` full_data_df.count() almost 20 millions. However, 200+ buckets were generated in the end, not 32(dynamic-bucket.assigner-parallelism) or 20 (20 millions / dynamic-bucket.target-row-num(2 million)) . Is this as expected? ### What doesn't meet your expectations? `dynamic-bucket.assigner-parallelism`, `dynamic-bucket.target-row-num ` can control the number of buckets during Dynamic Bucket initialization. ### Anything else? _No response_ ### Are you willing to submit a PR? - [ ] I'm willing to submit a PR! -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
