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Posted to issues@spark.apache.org by "Takeshi Yamamuro (JIRA)" <ji...@apache.org> on 2017/07/01 04:31:01 UTC

[jira] [Updated] (SPARK-21276) Update lz4-java to remove custom LZ4BlockInputStream

     [ https://issues.apache.org/jira/browse/SPARK-21276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Takeshi Yamamuro updated SPARK-21276:
-------------------------------------
    Description: 
We currently use custom LZ4BlockInputStream to read concatenated byte stream in shuffle (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


  was:
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



> 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 in shuffle (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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