Hope you are doing well.
Please follow the steps given below:
1) Go to the Namenode and start dfs daemons:
2) Make sure that ssh login is working from namenode to jobtracker node
3) Now go to the Job tarcker Node and start the job tracker individually:
hadoop-daemon.sh start jobtracker
4) Go to the Namenode and start all tasktracker daemons:
hadoop-daemons.sh start tasktracker
Please let me know if you have any further issue regarding this query.
We are eagerly waiting for your reply.