Dear Sai,


Hope you are doing well


Kindly fire below commands one by one to restart the cluster.


sudo service hadoop-master stop


sudo service hadoop-master start


hadoop dfsadmin -safemode leave


sudo jps




After this, you can proceed


Hope this resolves your query

In case of any further issue,feel free to revert.




Regards

Sumit Anand

edureka! Solution Team

Website - www.edureka.co

Edureka claims 1st position at Deloitte's Technology Fast 50 India 2014