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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2016/01/04 15:34:40 UTC

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

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

Sean Owen updated SPARK-12388:
------------------------------
    Priority: Minor  (was: Major)

> 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
>            Assignee: Davies Liu
>            Priority: Minor
>              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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