Pig cannot read from HDFS

Environment :
HDP 2.2
Apache Pig version 0.14.0.2.2.4.2-2

Issue : No matter what,Pig refuse to read from HDFS

Eg : I have a testfile in hdfs /user directory

Pig can read the file as shown from below Grunt shell

grunt> ls /user/testfile
hdfs://node:8020/user/testfile

Now when i try to load and dump this file as below

grunt> A = load ‘/user/testfile';
grunt> dump A;

it gives a Java error as below

java.io.FileNotFoundException: File does not exist: hdfs://node.

and the final output is

Input(s):
Failed to read data from “/user/testfile”

I tried using the full HDFS path as below but the end result remains the same

Input(s):
Failed to read data from “hdfs://node:8020/user/testfile”

I was wondering whether anyone faced this issue?

My JAVA_HOME,PIG_HOME ,bin/pig and HADOOPDIR environemnt variables are set

Regards

Sanjay