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From "Takeshi Yamamuro (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-21276) Update lz4-java to remove custom LZ4BlockInputStream
Date Sat, 01 Jul 2017 04:31:01 GMT
Takeshi Yamamuro created SPARK-21276:
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             Summary: Update  lz4-java to remove custom LZ4BlockInputStream
                 Key: SPARK-21276
                 URL: https://issues.apache.org/jira/browse/SPARK-21276
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
    Affects Versions: 2.1.1
            Reporter: Takeshi Yamamuro
            Priority: Trivial


We currently use custom LZ4BlockInputStream to read concatenated byte stream (https://github.com/apache/spark/blob/master/core/src/main/java/org/apache/spark/io/LZ4BlockInputStream.java#L38).
In the recent pr (https://github.com/lz4/lz4-java/pull/105), this functionality is implemented
even in lz4-java upstream. So, we might update the lz4-java package that will be released
in near future.

- Issue about the next lz4-java release
https://github.com/lz4/lz4-java/issues/98

- Diff between the latest release and the master in lz4-java
https://github.com/lz4/lz4-java/compare/62f7547abb0819d1ca1e669645ee1a9d26cd60b0...6480bd9e06f92471bf400c16d4d5f3fd2afa3b3d
 * fixed NPE in XXHashFactory similarly
 * Don't place resources in default package to support shading
 * Fixes ByteBuffer methods failing to apply arrayOffset() for array-backed
 * Try to load lz4-java from java.library.path, then fallback to bundled
 * Add ppc64le binary
 * Add s390x JNI binding
 * Add basic LZ4 Frame v1.5.0 support
 * enable aarch64 support for lz4-java
 * Allow unsafeInstance() for ppc64le archiecture
 * Add unsafeInstance support for AArch64
 * Support 64-bit JNI build on Solaris
 * Avoid over-allocating a buffer
 * Allow EndMark to be incompressible for LZ4FrameInputStream.
 * Concat byte stream




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