复制到其他datanode节点（192.168.199.4/5）
[hadoop@tiandong63 ~]$ scp -r /home/hadoop/hadoop-2.7.7 hadoop@tiandong64
[hadoop@tiandong63 ~]$ scp -r /home/hadoop/hadoop-2.7.7 hadoop@tiandong65
三、启动hadoop:
在tiandong63上面启动（使用hadoop用户）
1、格式化：
[hadoop@tiandong63 ~]$ cd /home/hadoop/hadoop-2.7.7/bin/
[hadoop@tiandong63 bin]$ ./hdfs nodename -format
2、启动hdfs：
[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/sbin/start-dfs.sh
查看进程（tiandong63上面查看namenode）：
[hadoop@tiandong63 ~]$ ps -axu | grep namenode --color
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
hadoop 42851 0.4 17.6 2762196 177412 ? Sl 18:13 1:26 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_namenode -Xmx1000m -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,console -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop-hadoop-namenode-tiandong63.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS org.apache.hadoop.hdfs.server.namenode.NameNode
hadoop 43046 0.2 13.3 2733336 134344 ? Sl 18:13 0:35 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_secondarynamenode -Xmx1000m -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,console -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop-hadoop-secondarynamenode-tiandong63.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode
在tiandong64和tiandong65上面查看进程（datanode）
[root@tiandong64 ~]# ps -aux|grep datanode
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
hadoop 3938 0.3 12.2 2757576 122592 ? Sl 18:13 1:04 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_datanode -Xmx1000m -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,console -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop-hadoop-datanode-tiandong64.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -server -Dhadoop.security.logger=ERROR,RFAS -Dhadoop.security.logger=ERROR,RFAS -Dhadoop.security.logger=ERROR,RFAS -Dhadoop.security.logger=INFO,RFAS org.apache.hadoop.hdfs.server.datanode.DataNode
3、启动yarn（在tiandong63上面，即启动分布式计算）：
[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/sbin/start-yarn.sh
在tiandong63上面查看进程（resourcemanager进程）
[hadoop@tiandong63 ~]$ ps -ef|grep resourcemanager --color
hadoop 43196 1 0 18:14 pts/1 00:02:55 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_resourcemanager -Xmx1000m -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dyarn.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=yarn-hadoop-resourcemanager-tiandong63.log -Dyarn.log.file=yarn-hadoop-resourcemanager-tiandong63.log -Dyarn.home.dir= -Dyarn.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dyarn.policy.file=hadoop-policy.xml -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dyarn.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=yarn-hadoop-resourcemanager-tiandong63.log -Dyarn.log.file=yarn-hadoop-resourcemanager-tiandong63.log -Dyarn.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -classpath /home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/share/hadoop/common/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/common/*:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/*:/home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/*:/contrib/capacity-scheduler/*.jar:/contrib/capacity-scheduler/*.jar:/contrib/capacity-scheduler/*.jar:/contrib/capacity-scheduler/*.jar:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/lib/*:/home/hadoop/hadoop-2.7.7/etc/hadoop/rm-config/log4j.properties org.apache.hadoop.yarn.server.resourcemanager.ResourceManager
在tiandong64和tiandong65上面查看进程（nodemanager）
[root@tiandong64 ~]# ps -aux|grep nodemanager --color
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
hadoop 4048 0.5 15.7 2802552 158380 ? Sl 18:14 1:42 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_nodemanager -Xmx1000m -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dyarn.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=yarn-hadoop-nodemanager-tiandong64.log -Dyarn.log.file=yarn-hadoop-nodemanager-tiandong64.log -Dyarn.home.dir= -Dyarn.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dyarn.policy.file=hadoop-policy.xml -server -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dyarn.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=yarn-hadoop-nodemanager-tiandong64.log -Dyarn.log.file=yarn-hadoop-nodemanager-tiandong64.log -Dyarn.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -classpath /home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/share/hadoop/common/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/common/*:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/*:/home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/*:/contrib/capacity-scheduler/*.jar:/contrib/capacity-scheduler/*.jar:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/lib/*:/home/hadoop/hadoop-2.7.7/etc/hadoop/nm-config/log4j.properties org.apache.hadoop.yarn.server.nodemanager.NodeManager
注意：start-dfs和start-yarn.sh这两个脚本可以使用start-all.sh代替