Davies Liu created SPARK-12388:
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Summary: 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
According the benchmark [1], LZ4-java could be 80% (or 30%) faster than Snappy.
After changing the compressor to LZ4, I saw 25% improvement on end-to-end time
for a TPCDS query (Q4).
[1] https://github.com/ning/jvm-compressor-benchmark/wiki
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