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Posted to issues@spark.apache.org by "Davies Liu (JIRA)" <ji...@apache.org> on 2015/12/21 23:22:46 UTC

[jira] [Resolved] (SPARK-12388) Change default compressor to LZ4

     [ https://issues.apache.org/jira/browse/SPARK-12388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Davies Liu resolved SPARK-12388.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Issue resolved by pull request 10342
[https://github.com/apache/spark/pull/10342]

> Change default compressor to LZ4
> --------------------------------
>
>                 Key: SPARK-12388
>                 URL: https://issues.apache.org/jira/browse/SPARK-12388
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Davies Liu
>              Labels: releasenotes
>             Fix For: 2.0.0
>
>
> According the benchmark [1], LZ4-java could be 80% (or 30%) faster than Snappy.
> After changing the compressor to LZ4, I saw 20% improvement on end-to-end time for a TPCDS query (Q4).
> [1] https://github.com/ning/jvm-compressor-benchmark/wiki



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