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From "T Jake Luciani (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5038) LZ4Compressor
Date Thu, 06 Dec 2012 22:36:35 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13525886#comment-13525886
] 

T Jake Luciani commented on CASSANDRA-5038:
-------------------------------------------

Hi Adrian,

Cool,  yeah I'm not sure if we can use the "known size" decompressor, does it have to be exact
or can it be upper bounded? We know from the block size the max compressed length.

Thanks for the work and good point about also looking for JNI.  I'd suggest you add a simple
way for us to pick the best compressor for our node.
                
> 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: 1.2.1
>
>         Attachments: 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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