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https://issues.apache.org/jira/browse/HADOOP-13126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15287510#comment-15287510
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Martin W. Kirst commented on HADOOP-13126:
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[~rdblue] Great that you take care of adopting brotli into Hadoop.
A small side note:
I filled one minor issue for brotli itself, which you may concern, when
thinking about backing a release.
See https://github.com/google/brotli/issues/346
The good news are, the comments implies that a fix will be available soon.
I will take care on that and adopt it ASAP.
Let's rock this :-)
> Add Brotli compression codec
>
>
> Key: HADOOP-13126
> URL: https://issues.apache.org/jira/browse/HADOOP-13126
> Project: Hadoop Common
> Issue Type: Improvement
> Components: io
>Affects Versions: 2.7.2
>Reporter: Ryan Blue
>Assignee: Ryan Blue
> Attachments: HADOOP-13126.1.patch, HADOOP-13126.2.patch
>
>
> 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
> real1m17.106s
> user1m30.804s
> sys 0m4.404s
> [blue@work Downloads]$ time parquet from test.parquet -o test.br.parquet
> --compression-codec brotli --overwrite
> real1m16.640s
> user1m24.244s
> sys 0m6.412s
> [blue@work Downloads]$ time parquet from test.parquet -o test.gz.parquet
> --compression-codec gzip --overwrite
> real3m39.496s
> user3m48.736s
> 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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