Zookeeper安装

一、配置时间同步

yum -y install chrony
vi /etc/chrony.conf
pool time1.aliyun.com iburst

二、部署zookeeper

master配置

[root@master conf]# tar xf zookeeper-3.4.8.tar.gz -C /usr/local/src/

[root@master ~]# cd /usr/local/src/
[root@master src]# mv zookeeper-3.4.8/ zookeeper
[root@master src]# cd /usr/local/src/zookeeper/
[root@master zookeeper]# mkdir data logs
[root@master zookeeper]# echo '1' > /usr/local/src/zookeeper/data/myid
[root@master zookeeper]# cd /usr/local/src/zookeeper/conf
[root@master conf]# cp zoo_sample.cfg zoo.cfg

[root@master conf]# vi zoo.cfg
#修改 dataDir参数内容如下：
dataDir=/usr/local/src/zookeeper/data
#在zoo.cfg文件末尾追加以下参数配置，表示三个 ZooKeeper节点的访问端口号
server.1=master:2888:3888
server.2=slave1:2888:3888
server.3=slave2:2888:3888

[root@master conf]# vi /etc/profile.d/zookeeper.sh
# 在文件末尾追加
export ZOOKEEPER_HOME=/usr/local/src/zookeeper   #ZooKeeper安装目录
export PATH=${ZOOKEEPER_HOME}/bin:$PATH   #ZooKeeper可执行程序目录

[root@master conf]# chown -R hadoop.hadoop /usr/local/src/
[root@master conf]# scp -r /usr/local/src/zookeeper/ slave1:/usr/local/src/
[root@master conf]# scp -r /usr/local/src/zookeeper/ slave2:/usr/local/src/
[root@master conf]# scp /etc/profile.d/zookeeper.sh slave1:/etc/profile.d/
[root@master conf]# scp /etc/profile.d/zookeeper.sh slave2:/etc/profile.d/

slave配置

[root@slave1 ~]# chown -R hadoop.hadoop /usr/local/src/
[root@slave1 ~]# ll /usr/local/src/
[root@slave2 ~]# chown -R hadoop.hadoop /usr/local/src/
[root@slave2 ~]# ll /usr/local/src/

[root@slave1 ~]# echo '2' > /usr/local/src/zookeeper/data/myid
[root@slave2 ~]# echo '3' > /usr/local/src/zookeeper/data/myid

三、启动zookeeper

[root@master ~]# su - hadoop
Last login: Fri Apr 22 15:04:50 CST 2022 on pts/1
[hadoop@master ~]$ zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/src/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[hadoop@master ~]$ jps
2612 ResourceManager
3286 Jps
2235 NameNode
2444 SecondaryNameNode
3260 QuorumPeerMain
[hadoop@master ~]$ zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/src/zookeeper/bin/../conf/zoo.cfg
Mode: leader

[root@slave1 ~]# su - hadoop
Last login: Fri Apr 22 15:04:19 CST 2022 on pts/1
[hadoop@slave1 ~]$ zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/src/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[hadoop@slave1 ~]$ jps
1841 DataNode
2324 Jps
2300 QuorumPeerMain
1967 NodeManager
[hadoop@slave1 ~]$ zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/src/zookeeper/bin/../conf/zoo.cfg
Mode: follower

[root@slave2 ~]# su - hadoop
Last login: Fri Apr 22 15:04:37 CST 2022 on pts/1
[hadoop@slave2 ~]$ zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/src/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[hadoop@slave2 ~]$ jps
2258 QuorumPeerMain
1945 NodeManager
1819 DataNode
2284 Jps
[hadoop@slave2 ~]$ zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/src/zookeeper/bin/../conf/zoo.cfg
Mode: follower