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https://issues.apache.org/jira/browse/HDFS-3110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247816#comment-13247816
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Henry Robinson commented on HDFS-3110:
--------------------------------------
Yeah, the tests aren't wired into the pom yet (there is a TODO in
hadoop-hdfs/pom.xml). We should create a follow-on JIRA to put this back in the
build process.
Here's how I built. Make sure HADOOP_HOME is set.
*From hadoop-hdfs/src/main/native:*
{code}
export
LD_LIBRARY_PATH=/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/amd64/server:${HADOOP_HOME}/lib/native/
export LIBHDFS_OPTS=-Djava.library.path=${HADOOP_HOME}/lib/native/
gcc -Wall hdfs_test.c -I/usr/lib/jvm/java-6-sun-1.6.0.26/include/
-I/usr/lib/jvm/java-6-sun-1.6.0.26/include/linux -L${HADOOP_HOME}/lib/native/
-lhdfs -ljvm -L/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/amd64/server/ -lrt
{code}
and to test:
*From hadoop-hdfs/src/main/native/tests*
{code}
./test-libhdfs.sh
{code}
> libhdfs implementation of direct read API
> -----------------------------------------
>
> Key: HDFS-3110
> URL: https://issues.apache.org/jira/browse/HDFS-3110
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: libhdfs
> Reporter: Henry Robinson
> Assignee: Henry Robinson
> Fix For: 0.24.0
>
> Attachments: HDFS-3110.0.patch, HDFS-3110.1.patch, HDFS-3110.2.patch,
> HDFS-3110.3.patch, HDFS-3110.4.patch, HDFS-3110.5.patch
>
>
> Once HDFS-2834 gets committed, we can add support for the new API to libhdfs,
> which leads to significant performance increases when reading local data from
> C.
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