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From "Adrien Grand (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-5038) LZ4Compressor
Date Sat, 12 Jan 2013 23:24:13 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-5038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Adrien Grand updated CASSANDRA-5038:
------------------------------------

    Attachment: CASSANDRA-5038.patch

cassandra-dtest's configuration_test.py and cql_tests.py passed successfully with LZ4Compresssor
(after performing a sed -i -e "s/SnappyCompressor/LZ4Compressor/g" on the test files). Unfortunately,
some other tests mentioning compresssion (such as counter_tests.py or sstable_generation_loading_test.py)
didn't pass but they didn't pass with Snappy either so this is probably unrelated?
                
> LZ4Compressor
> -------------
>
>                 Key: CASSANDRA-5038
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5038
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: T Jake Luciani
>            Priority: Minor
>             Fix For: 1.2.2
>
>         Attachments: CASSANDRA-5038.patch, CASSANDRA-5038.patch, LZ4Compressor.java,
lz4-java.jar
>
>
> LZ4 is a new compression algo that's ~2x faster than Snappy.
> [~jpountz] has written a nice java port which includes a misc.Unsafe version that performs
>= than our java snappy version.
> Details at http://blog.jpountz.net/post/28092106032/wow-lz4-is-fast
> The nice thing is this should work with java7 and be more portable.
> We can also fallback the pure java impl

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