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Posted to commits@hudi.apache.org by "Alexey Kudinkin (Jira)" <ji...@apache.org> on 2022/06/24 21:18:00 UTC

[jira] [Created] (HUDI-4319) Dictionary encoding not applied by Parquet when bulk-inserting

Alexey Kudinkin created HUDI-4319:
-------------------------------------

             Summary: Dictionary encoding not applied by Parquet when bulk-inserting
                 Key: HUDI-4319
                 URL: https://issues.apache.org/jira/browse/HUDI-4319
             Project: Apache Hudi
          Issue Type: Bug
            Reporter: Alexey Kudinkin
             Fix For: 0.12.0


In our tests we've discovered that Hudi doesn't properly propagate "hoodie.parquet.dictionary.enabled" config to Parquet writer when doing bulk-insert.

This leads to PLAIN_DICTIONARY encoding not applied substantially bloating the footprint on storage in our tests by about 30%:

!https://t18029943.p.clickup-attachments.com/t18029943/873f6a77-f1cf-49e5-9ba3-682cadf7ef71/Screen%20Shot%202022-06-22%20at%207.06.44%20PM.png!



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