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Posted to common-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/02/25 15:03:01 UTC
[jira] [Work logged] (HADOOP-13126) Add Brotli compression codec
[ https://issues.apache.org/jira/browse/HADOOP-13126?focusedWorklogId=557959&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-557959 ]
ASF GitHub Bot logged work on HADOOP-13126:
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Author: ASF GitHub Bot
Created on: 25/Feb/21 15:02
Start Date: 25/Feb/21 15:02
Worklog Time Spent: 10m
Work Description: martin-g opened a new pull request #2723:
URL: https://github.com/apache/hadoop/pull/2723
Adds BrotliCodec - a compression codec based on [Google Brotli](https://github.com/google/brotli)
This PR is a continuation on the work done by @rdblue at https://issues.apache.org/jira/browse/HADOOP-13126
In his patches it was based on [jbrotli](https://github.com/MeteoGroup/jbrotli) library but this library is not maintained since few years. My PR uses [Brotli4j](https://github.com/hyperxpro/Brotli4j)
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Issue Time Tracking
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Worklog Id: (was: 557959)
Remaining Estimate: 0h
Time Spent: 10m
> 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
> Priority: Major
> Attachments: HADOOP-13126.1.patch, HADOOP-13126.2.patch, HADOOP-13126.3.patch, HADOOP-13126.4.patch, HADOOP-13126.5.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 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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