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Execute $HADOOP_HOME/bin/stop-all.sh to stop all the nodes in the cluster. This command should be issued from the node where cluster was started.
If there are any errors, examine the log files in the HADOOP_HOME/logs/ directory.
Namenode is in safe mode
org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot delete /tmp/hadoop-hadoop/mapred/system. Name node is in safe mode. The reported blocks 319128 needs additional 7183 blocks to reach the threshold 0.9990 of total blocks 326638. Safe mode will be turned off automatically....
HADOOP_HOME/bin/hadoop dfsadmin -safemode leave
Namenode is not getting started
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