[jira] [Created] (BEAM-11658) Add Snappy compression and decompression support

["Andrei Balici (Jira)" <ji...@apache.org>]

Andrei Balici created BEAM-11658:
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             Summary: Add Snappy compression and decompression support
                 Key: BEAM-11658
                 URL: https://issues.apache.org/jira/browse/BEAM-11658
             Project: Beam
          Issue Type: New Feature
          Components: sdk-java-core
            Reporter: Andrei Balici


Snappy is a compression/decompression library. It does not aim for maximum compression, or compatibility with any other compression library; instead, it aims for very high speeds and reasonable compression. For instance, compared to the fastest mode of zlib, Snappy is an order of magnitude faster for most inputs, but the resulting compressed files are anywhere from 20% to 100% bigger. (For more information, see "Performance", below.)

 

Many data pipelines will have as input files .snappy compressed, and these currently have to be read by creating custom DoFn(s).

 

It would be nice to see Beam support this out of the box, as it does currently for LZO. Snappy usually is faster than algorithms in the same class (e.g. LZO, LZF, QuickLZ, etc.) while achieving comparable compression ratios, so I see no reason leaving this out.



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