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Posted to common-dev@hadoop.apache.org by "Cheng Pan (Jira)" <ji...@apache.org> on 2026/04/19 15:23:00 UTC
[jira] [Resolved] (HADOOP-19855) Use zstd-jni in ZStandardCodec
[ https://issues.apache.org/jira/browse/HADOOP-19855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Cheng Pan resolved HADOOP-19855.
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Fix Version/s: 3.5.1
3.6.0
Release Note: The Hadoop ZStandardCodec now depends on zstd-jni. The encapsulated JNI provides the native Zstandard, so it is no longer necessary to install and configure the zstd system package.
Assignee: Cheng Pan
Resolution: Fixed
> Use zstd-jni in ZStandardCodec
> ------------------------------
>
> Key: HADOOP-19855
> URL: https://issues.apache.org/jira/browse/HADOOP-19855
> Project: Hadoop Common
> Issue Type: Improvement
> Components: compress
> Affects Versions: 3.5.0
> Reporter: Cheng Pan
> Assignee: Cheng Pan
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.1, 3.6.0
>
>
> In Hadoop, we use native libs for zstd codec which has several disadvantages:
> * It requires native *libhadoop* and *libzstd* to be installed in system {*}LD_LIBRARY_PATH{*}, and they have to be installed separately on each node of the clusters, container images, or local test environments which adds huge complexities from deployment point of view. In some environments, it requires compiling the natives from sources which is non-trivial. Also, this approach is platform dependent; the binary may not work in different platform, so it requires recompilation.
> * It requires extra configuration of *java.library.path* to load the natives, and it results higher application deployment and maintenance cost for users.
> Projects such as *Spark* and *Parquet* use [zstd-jni|https://github.com/luben/zstd-jni] which is JNI-based implementation. It contains native binaries for Linux, Mac, and IBM in jar file, and it can automatically load the native binaries into JVM from jar without any setup.
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