NickName:Saurab Ask DateTime:2017-06-22T00:33:41

Hadoop : unable to load native hadoop library

I know that this is a famous question across internet and there are tons of websites showing how to solve this issue and there are hell lots of QA on SO too. BUT NONE of them helped me and I am frustrated now. So I am giving every details I can, if I overlooked anything, I appreciate your help.

**OS** : Ubuntu 16.04 32 bit
**Hadoop version** : Hadoop 3.0.0-alpha3
**bashrc** : 

export HADOOP_HOME=/usr/local/hadoopec/hadoop
export HADOOP_CONF_DIR=/usr/local/hadoopec/hadoop/etc/hadoop
export HADOOP_MAPRED_HOME=/usr/local/hadoopec/hadoop
export HADOOP_COMMON_HOME=/usr/local/hadoopec/hadoop
export HADOOP_HDFS_HOME=/usr/local/hadoopec/hadoop
export PATH=$PATH:/usr/local/hadoopec/hadoop/bin

export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-i386

export LD_LIBRARY_PATH=/usr/local/hadoopec/hadoop/lib/native/:$LD_LIBRARY_PATH
#export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib/native"

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

**core-site.xml** : 

<property>
  <name>hadoop.tmp.dir</name>
  <value>/usr/hadoopec/hadoop/tmp</value>
  <description>Temporary Directory.</description>
</property>

<property>
  <name>fs.default.name</name>
  <value>hdfs://localhost:9000</value>
  <description>Use HDFS as file storage engine</description>
</property>

 **hdfs-env.sh**

export HADOOP_OPTS="$HADOOP_OPTS -Djava.library.path=$HADOOP_HOME/lib/native"
export HADOOP_OPTS="$HADOOP_OPTS -XX:-PrintWarnings -Djava.net.preferIPv4Stack=true"
export LD_LIBRARY_PATH=/usr/local/hadoopec/hadoop/lib/native/:$LD_LIBRARY_PATH

**hdfs-site.xml**

<property>
<name>dfs.replication</name>
<value>3</value>
</property>

<property>
<name>dfs.permission</name>
<value>false</value>
</property>

 <property>
  <name>dfs.namenode.name.dir</name>
  <value>/usr/local/hadoopec/hadoop/tmp/hdfs/name</value>
  </property>

<property>
  <name>dfs.datanode.data.dir</name>
  <value>/usr/local/hadoopec/hadoop/tmp/hdfs/data</value>
  </property>

If anyone needs some more informations, feel free to ask me.

Copyright Notice：Content Author:「Saurab」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/44681653/hadoop-unable-to-load-native-hadoop-library