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https://issues.apache.org/jira/browse/HADOOP-12972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15217620#comment-15217620
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John Zhuge commented on HADOOP-12972:
-------------------------------------
If we want to match Hadoop lz4 library version with OS lz4 command version,
shall we make the following change instead of Patch 001?
{code}
Java_org_apache_hadoop_io_compress_lz4_Lz4Compressor_getLibraryName(
JNIEnv *env, jclass class
) {
return (*env)->NewStringUTF(env, "r123");
}
{code}
If we take this approach, we must add comments reminding whoever upgrades LZ4
revision to update this hardcoded value.
> Lz4Compressor#getLibraryName returns the wrong version number
> -------------------------------------------------------------
>
> Key: HADOOP-12972
> URL: https://issues.apache.org/jira/browse/HADOOP-12972
> Project: Hadoop Common
> Issue Type: Bug
> Components: native
> Affects Versions: 2.6.0
> Reporter: John Zhuge
> Assignee: Colin Patrick McCabe
> Priority: Trivial
> Fix For: 2.8.0
>
> Attachments: HADOOP-12972.001.patch
>
>
> HADOOP-11184 updated lz4 to "r123", but {{hadoop checknative -a}} still
> prints "revision:99".
> {code}
> $ hadoop checknative -a
> 16/03/29 11:42:40 INFO bzip2.Bzip2Factory: Successfully loaded & initialized
> native-bzip2 library system-native
> 16/03/29 11:42:40 INFO zlib.ZlibFactory: Successfully loaded & initialized
> native-zlib library
> Native library checking:
> hadoop: true
> /opt/cloudera/parcels/CDH-5.8.0-1.cdh5.8.0.p0.1209/lib/hadoop/lib/native/libhadoop.so.1.0.0
> zlib: true /lib64/libz.so.1
> snappy: true
> /opt/cloudera/parcels/CDH-5.8.0-1.cdh5.8.0.p0.1209/lib/hadoop/lib/native/libsnappy.so.1
> lz4: true revision:99
> bzip2: true /lib64/libbz2.so.1
> openssl: true /usr/lib64/libcrypto.so
> {code}
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