Ubuntu18.04 部署Zookeeper集群

本文详细介绍了在Ubuntu18.04系统中部署Zookeeper集群的过程,包括Zookeeper的安装、配置文件zoo.cfg的设置、myPid的创建、批量启动脚本的编写以及集群的启动步骤。

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1. Zookeeper 安装

下载地址:http://zookeeper.apache.org/releases.html#download

1.1 安装Zookeeper

解压 zookeeper-3.4.13.tar.gz 到 /opt 目录

sudo tar -zxvf zookeeper-3.4.13.tar.gz  /opt
sudo mv /opt/zookeeper-3.4.13 /opt/zookeeper
sudo chown -R hadoop:hadoop /opt/zookeeper

修改环境变量

sudo gedit /etc/profile
export ZOOKEEPER_HOME=/opt/zookeeper
export PATH=$ZOOKEEPER_HOME/bin:$PATH

刷新环境变量

source /etc/profile

1.2 配置Zookeeper

1.2.1 配置 zoo.cfg

cd /opt/zookeeper/conf

添加如下内容

# 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=/data/zookeeper/tmp
# 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
clientPort=2181
tickTime=2000
initLimit=5
syncLimit=2
dataDir=/data/zookeeper/data
dataLogDir=/data/zookeeper/logs
server.1=master:2888:3888
server.2=slave1:2888:3888
server.3=slave2:2888:3888

1.2.2 将上述所有文件复制一份到各节点

1.2.3 配置myPid

cd /data/zookeeper/data
touch myPid

添加内容 (每台服务器不同)

1

1.2.4 编写批量启动脚本(zk-Cluster.sh)

#!/bin/bash
for host in master slave1 slave2
do
echo "${host}:${1}....."
ssh $host "source /etc/profile;/opt/zookeeper/bin/zkServer.sh $1"
done

1.3 启动 Zookeeper

./zk-Cluster.sh start
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