hadoop single node installation - formatting the hadoop file system

Question

I get the following error when I try to format the hdfs :

This is the first time im installing hadoop

hduser@dbserver:~$ /home/hduser/hadoop/bin/hadoop namenode -format

/home/hduser/hadoop/bin/hadoop: line 297: /usr/lib/j2sdk1.5-sun/bin/java: No such file or directory /home/hduser/hadoop/bin/hadoop: line 345: /usr/lib/j2sdk1.5-sun/bin/java: No such file or directory /home/hduser/hadoop/bin/hadoop: line 345: exec: /usr/lib/j2sdk1.5-sun/bin/java: cannot execute: No such file or directory

Any suggestions are welcome.

Answer 1

You need to uncomment and set JAVA_HOME in hadoop-env.sh file most probably.