The Compression Ratio of OBS Tables Is Too High

A high compression ratio of OBS tables in the Parquet or ORC format (for example, a compression ratio of 5 or higher compared with text compression) will lead to large data volumes to be processed by a single task. In this case, you are advised to set dli.sql.files.maxPartitionBytes to 33554432 (default: 134217728) in the conf field in the submit-job request body to reduce the data to be processed per task.

Parent topic: O&M Guide

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