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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/08/05 03:26:00 UTC

[jira] [Commented] (SPARK-39743) Unable to set zstd compression level while writing parquet files

    [ https://issues.apache.org/jira/browse/SPARK-39743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17575542#comment-17575542 ] 

Apache Spark commented on SPARK-39743:
--------------------------------------

User 'zzzzming95' has created a pull request for this issue:
https://github.com/apache/spark/pull/37416

> Unable to set zstd compression level while writing parquet files
> ----------------------------------------------------------------
>
>                 Key: SPARK-39743
>                 URL: https://issues.apache.org/jira/browse/SPARK-39743
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 3.2.0
>            Reporter: Yeachan Park
>            Priority: Minor
>
> While writing zstd compressed parquet files, the following setting `spark.io.compression.zstd.level` does not have any affect with regards to the compression level of zstd.
> All files seem to be written with the default zstd compression level, and the config option seems to be ignored.
> Using the zstd cli tool, we confirmed that setting a higher compression level for the same file tested in spark resulted in a smaller file.



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