[jira] [Commented] (SPARK-34651) Improve ZSTD support

["Stanislav Savulchik (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-34651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17304676#comment-17304676 ] 

Stanislav Savulchik commented on SPARK-34651:
---------------------------------------------

[~dongjoon] I noticed that "zstd" is not supported as a short compression codec name for text files in spark 3.1.1 though I can use it via its full class name {{org.apache.hadoop.io.compress.ZStandardCodec}} in 
{code:java}
scala> spark.read.textFile("hdfs://path/to/file.txt").write.option("compression", "zstd").text("hdfs://path/to/file.txt.zst")
java.lang.IllegalArgumentException: Codec [zstd] is not available. Known codecs are bzip2, deflate, uncompressed, lz4, gzip, snappy, none.
  at org.apache.spark.sql.catalyst.util.CompressionCodecs$.getCodecClassName(CompressionCodecs.scala:53)
...

scala> spark.read.textFile("hdfs://pato/to/file.txt").write.option("compression", "org.apache.hadoop.io.compress.ZStandardCodec").text("hdfs://path/to/file.txt.zst")

// no exceptions{code}
Source code for the stack frame above
[https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/CompressionCodecs.scala#L29]  

Should I create a Jira issue to add a short codec name for zstd to the list?

> Improve ZSTD support
> --------------------
>
>                 Key: SPARK-34651
>                 URL: https://issues.apache.org/jira/browse/SPARK-34651
>             Project: Spark
>          Issue Type: Umbrella
>          Components: Spark Core, SQL
>    Affects Versions: 3.2.0
>            Reporter: Dongjoon Hyun
>            Priority: Major
>




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