[jira] [Reopened] (HADOOP-12572) Update Hadoop's lz4 to r131

["Chris Nauroth (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-12572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Nauroth reopened HADOOP-12572:
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I consistently see segfaults when running {{TestLz4CompressorDecompressor}} on both Linux and Windows after this patch.  I'd like to revert it later today while we figure out what is wrong.  It looks like the tests didn't run during pre-commit, so we might also need to check what Yetus is doing with native-only patches.  Maybe we need to update the logic in the personality file.

> Update Hadoop's lz4 to r131
> ---------------------------
>
>                 Key: HADOOP-12572
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12572
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: native
>            Reporter: Kevin Bowling
>            Assignee: Kevin Bowling
>             Fix For: 2.8.0
>
>         Attachments: HADOOP-12572.001.patch
>
>
> Update hadoop's native lz4 copy to r131 versus the current r123 copy.  Release notes for the versions are at https://github.com/Cyan4973/lz4/releases
> Noteworthy changes:
> * 30% performance improvement for clang
> * GCC 4.9+ bug fixes
> * New 32/64 bits, little/big endian and strict/efficient align detection routines (internal)
> * Small decompression speed improvement
> This is my first Hadoop patch, review/feedback appreciated.



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