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I'm new to the hadoop. when the process of the installation, i gave hadoop.env.sh a JAVA_HOME path, but when I'm going to execute hdfs namenode -format it says that the java_home is not set.when check it again, it also saved in the hadoop.env.sh. i can't up the hdfs because of this. explained help is much appreciated.

thank u. i've attached the screen shot for the reference as well.[hadoop.env.sh view][error message]1

Thilina dias
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Can you restart HDFS service after adding JAVA_HOME to hadoop-env.sh? ALso try echoing echo $JAVA_HOME before running hadoop namenode format command.

Pradeep Bhadani
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Make sure you have set environment variable correctly.

https://hadoopwala.wordpress.com/2016/07/03/java/

Reference: Hadoop-Psuedo Distributed Mode

Hope this helps.

CHEEKATLAPRADEEP
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