Start and stop Hadoop
Start Hadoop:
start-dfs.sh
start-yarn.sh
Stop Hadoop
stop-dfs.sh
stop-yarn.sh
Or below command start all:
start-all.sh
One command to stop all:
stop-all.sh
To check Hadoop instance, run:
jps
This Hadoop instance has 5 java processes:
yarn processes:
NodeManager
ResourceManager
NameNode, SecondaryNameNode are name node, which is master node
DataNode
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