Hadoop “Unable to load native-hadoop library for your platform” warning

Question

I\'m currently configuring hadoop on a server running CentOs. When I run start-dfs.sh or stop-dfs.sh, I get the following error:

Answer 1

I had the same issue. It's solved by adding following lines in .bashrc:

export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"

Answer 2

This line right here:

export JAVA_LIBRARY_PATH=$HADOOP_HOME/lib/native:$JAVA_LIBRARY_PATH

From KunBetter's answer is where the money is

Answer 3

export JAVA_HOME=/home/hadoop/software/java/jdk1.7.0_80
export HADOOP_HOME=/usr/local/hadoop
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_COMMON_LIB_NATIVE_DIR"

Answer 4

This line right here:

export JAVA_LIBRARY_PATH=$HADOOP_HOME/lib/native:$JAVA_LIBRARY_PATH

From KunBetter's answer, worked for me. Just append it to .bashrc file and reload .bashrc contents

$ source ~/.bashrc

Answer 5

@zhutoulala -- FWIW your links worked for me with Hadoop 2.4.0 with one exception I had to tell maven not to build the javadocs. I also used the patch in the first link for 2.4.0 and it worked fine. Here's the maven command I had to issue

mvn package -Dmaven.javadoc.skip=true -Pdist,native -DskipTests -Dtar

After building this and moving the libraries, don't forget to update hadoop-env.sh :)

Thought this might help someone who ran into the same roadblocks as me

Answer 6

Just append word native to your HADOOP_OPTS like this:

export HADOOP_OPTS="$HADOOP_OPTS -Djava.library.path=$HADOOP_HOME/lib/native"

PS: Thank Searene