I am trying to run a query using sparkR interpreter in Zeppelin. We have R installed on the namenode machine and Zeppelin installed on the other machine. So when we fire a query using sparkR interpreter it doesn'display any error on the zeppelin screen but when I see the interpreter logs it throws an error: zeppelin Caused by: java.io.IOException: Cannot run program "R" (in directory "."): error=2, No such file or directory . Do we need to install R on every node?