Please uncomment/configure the JAVA_HOME parameter in hadoop-env.sh Make sure you have configured the minimal set of parameters according to this documentation: http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.2/bk_installing_manually_book/content/ch_setting_up_hadoop_configuration_chapter.html Start HDFS by using the instructions explained here: http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.2/bk_installing_manually_book/content/format_and_start_hdfs.html I think you might have forgotten step one=> Modify the JAVA_HOME value in the hadoop-env.sh file: export JAVA_HOME=/usr/java/default Execute the following commands on the NameNode host machine: su - $HDFS_USER /usr/hdp/current/hadoop-hdfs-namenode/../hadoop/bin/hdfs namenode -format /usr/hdp/current/hadoop-hdfs-namenode/../hadoop/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR start namenode Execute the following commands on the SecondaryNameNode: su - $HDFS_USER /usr/hdp/current/hadoop-hdfs-secondarynamenode/../hadoop/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR start secondarynamenode Execute the following commands on all DataNodes: su - $HDFS_USER /usr/hdp/current/hadoop-hdfs-datanode/../hadoop/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR start datanode Here are the first lines from one of my Ambari installed HDP cluster: # The java implementation to use. Required. export JAVA_HOME=/usr/jdk64/jdk1.8.0_40 export HADOOP_HOME_WARN_SUPPRESS=1 # Hadoop home directory export HADOOP_HOME=${HADOOP_HOME:-/usr/hdp/current/hadoop-client} ... View more

@Davide Isoardi I was able to fix your problem, please try the following solution: 1)Create jaas-file, called jaas.conf This file can be empty, doesnt really matter since your env. is not kerberized. 2) Start your Job with the following command hadoop jar /opt/lucidworks-hdpsearch/job/lucidworks-hadoop-job-2.0.3.jar com.lucidworks.hadoop.ingest.IngestJob -Dlww.commit.on.close=true -Dlww.jaas.file=jaas.conf -cls com.lucidworks.hadoop.ingest.DirectoryIngestMapper --collection test -i file:///data/* -of com.lucidworks.hadoop.io.LWMapRedOutputFormat --zkConnect horton01.example.com:2181,horton02.example.com:2181,horton03.example.com:2181/solr The order of the parameters needs to be the same as in the above command, otherwise the job might not work. I believe this is a bug, could you please report this issue to Lucidworks? Thanks. ... View more