04-学习笔记尚硅谷数仓搭建-zookeeper安装配置及群起脚本

目录

一、安装zookeeper

二、zookeeper相关配置

三、zookeeper启动

四、zookeeper群起脚本

备注：没有特别说明的命令默认在hadoop102上执行，其中的“其它主机”是指hadoop103和hadoop104

一、安装zookeeper

1.将zookeeper安装拖到/opt/software目录下

zookeeper安装包：01-学习笔记尚硅谷数仓搭建-基础Linux环境搭建（使用3台主机模拟Hadoop集群）-CSDN博客

在资源中的5.zookeeper下

2.将安装包解压

cd /opt/software
tar -zxvf apache-zookeeper-3.7.1-bin.tar.gz -C /opt/module/

3.重命名zookeeper

cd /opt/module
mv apache-zookeeper-3.7.1-bin/ zookeeper

4.创建zookeeper服务器的id

cd /opt/module/zookeeper
mkdir zkData
vim myid

编写下面内容：

2

对就一个2，是给服务器的编号

二、zookeeper相关配置

1.重命名配置文件及修改资源路径

cd /opt/module/zookeeper/conf
mv zoo_sample.cfg zoo.cfg
vim zoo.cfg

将dataDir后面修改为：

dataDir=/opt/module/zookeeper/zkData

并增加下面内容：

##############################cluster######################### server.2=hadoop102:2888:3888 server.3=hadoop103:2888:3888 server.4=hadoop104:2888:3888

修改后完整代码：

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/opt/module/zookeeper/zkData
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true
##############################cluster#########################
server.2=hadoop102:2888:3888
server.3=hadoop103:2888:3888
server.4=hadoop104:2888:3888

2.将修改后的zookeeper及相关配置分发到其它主机，输入下面命令：

cd /opt/module
xsync zookeeper/

3.修改myid

分发完成后，在hadoop103、hadoop104输入下面命令

cd /opt/module/zookeeper/zkData/
vim myid

将原来的2分别修改为3、4，对应每个服务器id

三、zookeeper启动

在3台主机分别输入下面命令启动zookeeper并查看进程

cd /opt/module/zookeeper
bin/zkServer.sh start
jps

如图，查看时有QuorumPeerMain进程，证明启动成功

四、zookeeper群起脚本

输入下面命令创建脚本

cd /home/atguigu/bin
vim zk.sh

填写下面内容后保存

#!/bin/bash

case $1 in
"start"){
for i in hadoop102 hadoop103 hadoop104
do
echo — zookeeper $i 启动 —
ssh $i "/opt/module/zookeeper/bin/zkServer.sh start"
done
};;
"stop"){
for i in hadoop102 hadoop103 hadoop104
do
echo — zookeeper $i 停止 —
ssh $i "/opt/module/zookeeper/bin/zkServer.sh stop"
done
};;
"status"){
for i in hadoop102 hadoop103 hadoop104
do
echo — zookeeper $i 状态 —
ssh $i "/opt/module/zookeeper/bin/zkServer.sh status"
done
};;
esac

输入下面命令启动脚本

# 启动集群
zk.sh start
# 关闭集群
zk.sh stop
# 查看集群状态
zk.sh status