slave: Error: JAVA_HOME is not set and could not be found[cluster setup]












0















All the answers to my question was showcased in a single node cluster



But i want the answer in multi node cluster



I had configured all the details of namenode and datanode correctly as in this blog https://www.edureka.co/blog/setting-up-a-multi-node-cluster-in-hadoop-2.X?utm_source=youtube&utm_campaign=hadoop-installation-multi-node-051216-wr&utm_medium=descriptionbut



but I had got stuck at this error!!!



Not able to start datanode
click here to see error image



slave: Error: JAVA_HOME is not set and could not be found


slave:



i had configured JAVA_HOME properly in hadoop_env.sh i.e.,



export JAVA_HOME=/usr/lib/jvm/java-8-oracle


ssh calls are properly going 



ssh hduser@slave





java apache-spark hadoop hdfs hadoop2







share|improve this question























  • Can you post the content of hadoop_env.sh, ls -l /usr/lib/jvm/java-8-oracle

    – User
    Nov 28 '18 at 20:33











  • slave or master?

    – vinay nimmalapudi
    Nov 29 '18 at 18:47











  • can you paste slave node

    – User
    Nov 29 '18 at 19:17











  • should both master and slaves had to have the same java paths??

    – vinay nimmalapudi
    Nov 30 '18 at 16:31











  • You can have the different JAVA_HOME between hosts provided you modify the hadoop_env.sh

    – User
    Dec 3 '18 at 6:59
















0















All the answers to my question was showcased in a single node cluster



But i want the answer in multi node cluster



I had configured all the details of namenode and datanode correctly as in this blog https://www.edureka.co/blog/setting-up-a-multi-node-cluster-in-hadoop-2.X?utm_source=youtube&utm_campaign=hadoop-installation-multi-node-051216-wr&utm_medium=descriptionbut



but I had got stuck at this error!!!



Not able to start datanode
click here to see error image



slave: Error: JAVA_HOME is not set and could not be found


slave:



i had configured JAVA_HOME properly in hadoop_env.sh i.e.,



export JAVA_HOME=/usr/lib/jvm/java-8-oracle


ssh calls are properly going 



ssh hduser@slave





java apache-spark hadoop hdfs hadoop2







share|improve this question























  • Can you post the content of hadoop_env.sh, ls -l /usr/lib/jvm/java-8-oracle

    – User
    Nov 28 '18 at 20:33











  • slave or master?

    – vinay nimmalapudi
    Nov 29 '18 at 18:47











  • can you paste slave node

    – User
    Nov 29 '18 at 19:17











  • should both master and slaves had to have the same java paths??

    – vinay nimmalapudi
    Nov 30 '18 at 16:31











  • You can have the different JAVA_HOME between hosts provided you modify the hadoop_env.sh

    – User
    Dec 3 '18 at 6:59














0












0








0








All the answers to my question was showcased in a single node cluster



But i want the answer in multi node cluster



I had configured all the details of namenode and datanode correctly as in this blog https://www.edureka.co/blog/setting-up-a-multi-node-cluster-in-hadoop-2.X?utm_source=youtube&utm_campaign=hadoop-installation-multi-node-051216-wr&utm_medium=descriptionbut



but I had got stuck at this error!!!



Not able to start datanode
click here to see error image



slave: Error: JAVA_HOME is not set and could not be found


slave:



i had configured JAVA_HOME properly in hadoop_env.sh i.e.,



export JAVA_HOME=/usr/lib/jvm/java-8-oracle


ssh calls are properly going 



ssh hduser@slave





java apache-spark hadoop hdfs hadoop2







share|improve this question














All the answers to my question was showcased in a single node cluster



But i want the answer in multi node cluster



I had configured all the details of namenode and datanode correctly as in this blog https://www.edureka.co/blog/setting-up-a-multi-node-cluster-in-hadoop-2.X?utm_source=youtube&utm_campaign=hadoop-installation-multi-node-051216-wr&utm_medium=descriptionbut



but I had got stuck at this error!!!



Not able to start datanode
click here to see error image



slave: Error: JAVA_HOME is not set and could not be found


slave:



i had configured JAVA_HOME properly in hadoop_env.sh i.e.,



export JAVA_HOME=/usr/lib/jvm/java-8-oracle


ssh calls are properly going 



ssh hduser@slave





java apache-spark hadoop hdfs hadoop2




java apache-spark hadoop hdfs hadoop2






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 28 '18 at 19:52









vinay nimmalapudivinay nimmalapudi

15




15













  • Can you post the content of hadoop_env.sh, ls -l /usr/lib/jvm/java-8-oracle

    – User
    Nov 28 '18 at 20:33











  • slave or master?

    – vinay nimmalapudi
    Nov 29 '18 at 18:47











  • can you paste slave node

    – User
    Nov 29 '18 at 19:17











  • should both master and slaves had to have the same java paths??

    – vinay nimmalapudi
    Nov 30 '18 at 16:31











  • You can have the different JAVA_HOME between hosts provided you modify the hadoop_env.sh

    – User
    Dec 3 '18 at 6:59



















  • Can you post the content of hadoop_env.sh, ls -l /usr/lib/jvm/java-8-oracle

    – User
    Nov 28 '18 at 20:33











  • slave or master?

    – vinay nimmalapudi
    Nov 29 '18 at 18:47











  • can you paste slave node

    – User
    Nov 29 '18 at 19:17











  • should both master and slaves had to have the same java paths??

    – vinay nimmalapudi
    Nov 30 '18 at 16:31











  • You can have the different JAVA_HOME between hosts provided you modify the hadoop_env.sh

    – User
    Dec 3 '18 at 6:59

















Can you post the content of hadoop_env.sh, ls -l /usr/lib/jvm/java-8-oracle

– User
Nov 28 '18 at 20:33





Can you post the content of hadoop_env.sh, ls -l /usr/lib/jvm/java-8-oracle

– User
Nov 28 '18 at 20:33













slave or master?

– vinay nimmalapudi
Nov 29 '18 at 18:47





slave or master?

– vinay nimmalapudi
Nov 29 '18 at 18:47













can you paste slave node

– User
Nov 29 '18 at 19:17





can you paste slave node

– User
Nov 29 '18 at 19:17













should both master and slaves had to have the same java paths??

– vinay nimmalapudi
Nov 30 '18 at 16:31





should both master and slaves had to have the same java paths??

– vinay nimmalapudi
Nov 30 '18 at 16:31













You can have the different JAVA_HOME between hosts provided you modify the hadoop_env.sh

– User
Dec 3 '18 at 6:59





You can have the different JAVA_HOME between hosts provided you modify the hadoop_env.sh

– User
Dec 3 '18 at 6:59












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