[jira] [Created] (CASSANDRA-8765) Switch to a pure Java implementation of Snappy to reduce compatibility issues

["Michaël Figuière (JIRA)" <ji...@apache.org>]

Michaël Figuière created CASSANDRA-8765:
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             Summary: Switch to a pure Java implementation of Snappy to reduce compatibility issues
                 Key: CASSANDRA-8765
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8765
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Michaël Figuière
            Priority: Minor


Since it has been introduced as a dependency, the Xerial's Snappy library, which relies on a few native libraries for performance purpose, has caused several compatibility issue or unexpected behaviors.

Dain's implementation (https://github.com/dain/snappy) is written in pure Java using some {{Unsafe}} memory access for secure its performance. According to the benchmark published by its author (https://github.com/dain/snappy#block-compress), it ends up being often faster than the JNI implementation, but without the compatibility issues.



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