CentOS7-Hadoop

HDFS启动脚本(非HA)（_start-hdfs-cluster）_

cd /usr/local/bin
sudo vi start-hdfs-cluster

脚本内容如下：_

#!/bin/bash
HADOOP_HOME=/home/bigdata/modules/hadoop-2.7.2
echo "start hdfs-----------------------------------------------------"
for i in LTSR008
do 
ssh $i "source /etc/profile;${HADOOP_HOME}/sbin/start-dfs.sh"
done
sleep 3s
echo "start done..."
echo "cluster jps status------------------------------------------------"
jpsx
exit 0

设置脚本执行权限：_

sudo chmod +x start-hdfs-cluster
sudo chown bigdata:bigdata start-hdfs-cluster

HDFS停止脚本(非HA)（stop-_hdfs-cluster）_

cd /usr/local/bin
sudo vi stop-hdfs-cluster

脚本内容如下：_

#!/bin/bash
HADOOP_HOME=/home/bigdata/modules/hadoop-2.7.2
echo "stop hdfs-----------------------------------------------------"
for i in LTSR008
do 
ssh $i "source /etc/profile;${HADOOP_HOME}/sbin/stop-dfs.sh"
done
sleep 3s
echo "stop done..."
echo "cluster jps status------------------------------------------------"
jpsx
exit 0

设置脚本执行权限：_

sudo chmod +x stop-hdfs-cluster
sudo chown bigdata:bigdata stop-hdfs-cluster

YARN启动脚本(非HA)（_start-yarn-cluster）_

cd /usr/local/bin
sudo vi start-yarn-cluster

脚本内容如下：_

#!/bin/bash
HADOOP_HOME=/home/bigdata/modules/hadoop-2.7.2
echo "start yarn-----------------------------------------------------"
for i in LTSR008
do 
ssh $i "source /etc/profile;${HADOOP_HOME}/sbin/start-yarn.sh"
done
sleep 3s
echo "start mr-jobhistory-----------------------------------------------------"
for i in LTSR008
do 
ssh $i "source /etc/profile;${HADOOP_HOME}/sbin/mr-jobhistory-daemon.sh start historyserver"
ssh $i "source /etc/profile;${HADOOP_HOME}/sbin/yarn-daemon.sh start timelineserver"
done
sleep 3s
echo "start done..."
echo "cluster jps status------------------------------------------------"
jpsx
exit 0

设置脚本执行权限：_

sudo chmod +x start-yarn-cluster
sudo chown bigdata:bigdata start-yarn-cluster

YARN停止脚本(非HA)（_stop-yarn-cluster）_

cd /usr/local/bin
sudo vi stop-yarn-cluster

脚本内容如下：_

#!/bin/bash
HADOOP_HOME=/home/bigdata/modules/hadoop-2.7.2
# 关闭mr-jobhistory
echo "stop mr-jobhistory"
for i in LTSR008
do 
ssh $i "source /etc/profile;${HADOOP_HOME}/sbin/mr-jobhistory-daemon.sh stop historyserver"
ssh $i "source /etc/profile;${HADOOP_HOME}/sbin/yarn-daemon.sh stop timelineserver"
done
sleep 3s
echo "stop yarn"
for i in LTSR008
do 
ssh $i "source /etc/profile;${HADOOP_HOME}/sbin/stop-yarn.sh"
done
sleep 3s
echo "stop done..."
echo "cluster jps status------------------------------------------------"
jpsx
exit 0

设置脚本执行权限：_

sudo chmod +x stop-yarn-cluster
sudo chown bigdata:bigdata stop-yarn-cluster

分发（选做）：

# 使用root账户分发至其他节点
sudo scp -r /usr/local/bin/*-{hdfs,yarn}-cluster root@LTSR003:/usr/local/bin/
sudo scp -r /usr/local/bin/*-{hdfs,yarn}-cluster root@LTSR005:/usr/local/bin/
sudo scp -r /usr/local/bin/*-{hdfs,yarn}-cluster root@LTSR006:/usr/local/bin/
sudo scp -r /usr/local/bin/*-{hdfs,yarn}-cluster root@LTSR007:/usr/local/bin/