目录
01【hadoop】
1.1【编写集群分发脚本xsync】
1)scp(secure copy)安全拷贝
scp可以实现服务器与服务器之间的数据拷贝(from server1 to server2)。
2)rsync远程同步工具
rsync主要用于备份和镜像。具有速度快、避免复制相同内容和支持符号链接的优点。
3)xsync集群分发脚本
#!/bin/bash
#1. 判断参数个数
if [ $# -lt 1 ]
then
echo Not Enough Arguement!
exit;
fi
#2. 遍历集群所有机器
for host in hadoop102 hadoop103 hadoop104
do
echo ==================== $host ====================
#3. 遍历所有目录,挨个发送
for file in $@
do
#4. 判断文件是否存在
if [ -e $file ]
then
#5. 获取父目录
pdir=$(cd -P $(dirname $file); pwd)
#6. 获取当前文件的名称
fname=$(basename $file)
ssh $host "mkdir -p $pdir"
rsync -av $pdir/$fname $host:$pdir
else
echo $file does not exists!
fi
done
done
1.2【集群部署规划】
1.3【Hadoop集群启停脚本】
1)Hadoop集群启停脚本(包含HDFS,Yarn,Historyserver):myhadoop.sh
#!/bin/bash
if [ $# -lt 1 ]
then
echo "No Args Input..."
exit ;
fi
case $1 in
"start")
echo " =================== 启动 hadoop集群 ==================="
echo " --------------- 启动 hdfs ---------------"
ssh hadoop102 "/opt/module/hadoop-3.1.3/sbin/start-dfs.sh"
echo " --------------- 启动 yarn ---------------"
ssh hadoop103 "/opt/module/hadoop-3.1.3/sbin/start-yarn.sh"
echo " --------------- 启动 historyserver ---------------"
ssh hadoop102 "/opt/module/hadoop-3.1.3/bin/mapred --daemon start historyserver"
;;
"stop")
echo " =================== 关闭 hadoop集群 ==================="
echo " --------------- 关闭 historyserver ---------------"
ssh hadoop102 "/opt/module/hadoop-3.1.3/bin/mapred --daemon stop historyserver"
echo " --------------- 关闭 yarn ---------------"
ssh hadoop103 "/opt/module/hadoop-3.1.3/sbin/stop-yarn.sh"
echo " --------------- 关闭 hdfs ---------------"
ssh hadoop102 "/opt/module/hadoop-3.1.3/sbin/stop-dfs.sh"
;;
*)
echo "Input Args Error..."
;;
esac
2)查看三台服务器Java进程脚本:jpsall
#!/bin/bash
for host in hadoop102 hadoop103 hadoop104
do
echo =============== $host ===============
ssh $host jps
done