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Zookeeper 配置文档

Zookeeper安装配置

1. 环境配置

将安装包上传至CentOS中,解压安装包到hadoop目录下

tar -zxvf apache-zookeeper-3.5.7-bin.tar.gz -C /usr/hadoop
mv apache-zookeeper-3.5.7-bin/ zookeeper-3.5.7/

修改Zookeeper配置文件

cp zoo_sample.cfg zoo.cfg 
tickTime=2000
clientPort=2181
initLimit=5
syncLimit=2
dataDir=/usr/hadoop/zookeeper-3.5.7/data

# 节点数为单数(投票机制)
server.0=master:2888:3888
server.1=slave1:2888:3888
server.2=slave2:2888:3888

发送 zoo.cfg 文件至slave1和slave2

scp -r /usr/hadoop/zookeeper-3.5.7 slave1:/usr/hadoop/zookeeper-3.5.7
scp -r /usr/hadoop/zookeeper-3.5.7 slave2:/usr/hadoop/zookeeper-3.5.7

分别在master、slave1、slave2节点上的 /zookeeper-3.5.7/data 路径下创建myid文件,按照各自server后面的数值进行填写,以master为例:

vi myid
0

配置环境变量

vi /etc/profile

在末尾添加以下代码,保存退出

export ZOOKEEPER_HOME=/usr/hadoop/zookeeper-3.5.7
export PATH=$ZOOKEEPER_HOME/bin:$PATH

发送 /etc/profile 配置文件至slave1和slave2

scp -r /etc/profile slave1:/etc/profile
scp -r /etc/profile slave2:/etc/profile

分别在master、slave1、slave2上生效配置

source /etc/profile

2. 启动Zookeeper

分别在master、slave1、slave2上启动Zookeeper

zkServer.sh start

分别在节点上查看Zookeeper状态

[root@master ~]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/hadoop/zookeeper-3.5.7/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: leader
[root@slave1 ~]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/hadoop/zookeeper-3.5.7/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower
[root@slave2 ~]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/hadoop/zookeeper-3.5.7/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower