R script log is not getting as output on oozie tasks log

Question

i am using below Rscript as a mapper on hadoop streaming. i want to see log info\warn etc on console of tasktracker or any other place of log that oozie does however its not coming any reason . My oozie job is successfully completed

Script

#! /usr/bin/env Rscript

library(methods)
library(utils)
library(devtools)
library(corpcor)
library(getopt)
library(logging)
library(HadoopStreaming)

main <- function() {
   paste("A", 1:50, sep = "")
   input <- file("stdin", open = "r")
   loginfo("CUSTOM ERROR")

   targets <- read.table(file="meta_reference1.csv", sep=";")
   print("############################################")
   print(target)
   close(input)

}

Updated Rscript for testing purpose

#! /usr/bin/env Rscript

library(methods)
library(utils)
library(devtools)
library(corpcor)
library(getopt)
library(logging)
library(HadoopStreaming)

main <- function() {
  write("prints to stderr", stderr())
  write("prints to stdout", stdout())   
}

No log appeared .. please suggest

Answer 1

Try using write instead of print, worked for me.

write("prints to stderr", stderr())

write("prints to stdout", stdout())