Namenode not starting -su: /home/hduser/../libexec/hadoop-config.sh: No such file or directory

Question

Installed Hadoop 2.7.1 on Ubuntu 15.10

Everything is working fine, only when I hit JPS , I can see all the demons running, except namenode .

at start it shows : -su: /home/hduser/../libexec/hadoop-config.sh: No such file or directory

When I googled it I came to know that , I can ignore this , as my

 <property>
   <name>dfs.namenode.name.dir</name>
   <value>file:/usr/local/hadoop_store/hdfs/namenode</value>
 </property>
 <property>
   <name>dfs.datanode.data.dir</name>
   <value>file:/usr/local/hadoop_store/hdfs/datanode</value>
 </property>

are set properly and hduser ( the user which runs the hadoop) owns the permission for these folders

any clue ??

Answer 1

This might be problem due to frequent Namenode format. Please see the namenode logs in logger. Probable solution : Check your hadoop.tmp.dir in core-site.xml. On that location, make sure that you have same clusterid for namenode and datanode(otherwise make them same). You can see clusterid inside VERSION file in dfs/name/current and dfs/data/current. If that make sense.

Answer 2

After spending some time , this simple change worked for me .

press ifconfig.

copy ip address

sudo gedit /etc/hosts

comment this line

#127.0.0.1  localhost

add the following line

10.0.2.15(your ip address) Hadoop-NameNode