Ryan Blue created HADOOP-13126:
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Summary: Add Brotli compression codec
Key: HADOOP-13126
URL: https://issues.apache.org/jira/browse/HADOOP-13126
Project: Hadoop Common
Issue Type: Improvement
Components: io
Reporter: Ryan Blue
Assignee: Ryan Blue
I've been testing [Brotli|https://github.com/google/brotli/], a new compression
library based on LZ77 from Google. Google's [brotli
benchmarks|https://cran.r-project.org/web/packages/brotli/vignettes/brotli-2015-09-22.pdf]
look really good and we're also seeing a significant improvement in
compression size, compression speed, or both.
{code:title=Brotli preliminary test results}
[blue@work Downloads]$ time parquet from test.parquet -o test.snappy.parquet
--compression-codec snappy --overwrite
real 1m17.106s
user 1m30.804s
sys 0m4.404s
[blue@work Downloads]$ time parquet from test.parquet -o test.br.parquet
--compression-codec brotli --overwrite
real 1m16.640s
user 1m24.244s
sys 0m6.412s
[blue@work Downloads]$ time parquet from test.parquet -o test.gz.parquet
--compression-codec gzip --overwrite
real 3m39.496s
user 3m48.736s
sys 0m3.880s
[blue@work Downloads]$ ls -l
-rw-r--r-- 1 blue blue 1068821936 May 10 11:06 test.br.parquet
-rw-r--r-- 1 blue blue 1421601880 May 10 11:10 test.gz.parquet
-rw-r--r-- 1 blue blue 2265950833 May 10 10:30 test.snappy.parquet
{code}
Brotli, at quality 1, is as fast as snappy and ends up smaller than gzip-9.
Another test resulted in a slightly larger Brotli file than gzip produced, but
Brotli was 4x faster. I'd like to get this compression codec into Hadoop.
[Brotli is licensed with the MIT
license|https://github.com/google/brotli/blob/master/LICENSE], and the [JNI
library jbrotli is
ALv2|https://github.com/MeteoGroup/jbrotli/blob/master/LICENSE].
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