Hadoop fs Not working

Hi,

I am working on Pig, but from past few mins started getting the below errors and even Hue is not working. Please check and revert back ASAP.

HUE:::
Cannot access: /user/maheshharuvaiah8134. The HDFS REST service is not available.

(‘Connection aborted.’, error(111, ‘Connection refused’))

Hadoop fs:::

[maheshharuvaiah8134@ip-172-31-60-179 bonala_pig]$ hadoop fs -ls
ls: Call From ip-172-31-60-179.ec2.internal/172.31.60.179 to ip-172-31-53-48.ec2.internal:8020 failed on connection exception: java.net.Con
nectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused

Thanks,
Mahesh .H