Where exactly classpaths for hadoop are present in hortonworks sandbox and also in cluster. My knowledge in hortonworks sandbox I have seen in /etc/hadoop/conf/0/hadoopenv.sh.

[#1 · Accepted solution]

Hi @krishna sampath, do you want to read the classpath or add to it?

To get the whole classpath, you just need to run this command:

hadoop classpath 

If you want to add to it, you can do so in hadoop-env.sh. If you're using Ambari, you must update it in Ambari in the hadoop-env section of the HDFS configs and not on the filesystem directly, as Ambari will overwrite any changes you make to the config files directly.