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1. 安装Zookeeper集群的具体步骤
1.1 集群节点规划
| Hostname | IP | Functions | 内存 | 磁盘 |
|---|---|---|---|---|
| hdp-01 | 192.168.121.61 | master | 4G | 50G |
| hdp-02 | 192.168.121.62 | slave | 3G | 50G |
| hdp-03 | 192.168.121.63 | slave | 3G | 50G |
1.2 在hdp-01节点上部署安装
[root@hdp-01 ~]# rz # 上传zookeeper压缩包
[root@hdp-01 ~]# tar -zxvf zookeeper-3.4.6.tar.gz -C /opt/ # 解压
# 配置环境变量
[root@hdp-01 ~]# vim /etc/profile
export ZOOKEEPER_HOME=/opt/zookeeper-3.4.6
export PATH=$PATH:$ZOOKEEPER_HOME/bin
[root@hdp-01 ~]# source /etc/profile
[root@hdp-01 etc]# scp profile hdp-02:$PWD
[root@hdp-01 etc]# scp profile hdp-03:$PWD
# 在hdp-02、hdp-03节点执行：source /etc/profile
# 创建data目录
[root@hdp-01 ~]# mkdir -p /hadoop/zookeeper/data
[root@hdp-01 ~]# cd /opt/zookeeper-3.4.6/conf/
[root@hdp-01 conf]# cp zoo_sample.cfg zoo.cfg
[root@hdp-01 conf]# vim zoo.cfg
# 修改为
dataDir=/hadoop/zookeeper/data
# 添加
server.1=hdp-01:2888:3888
server.2=hdp-02:2888:3888
server.3=hdp-03:2888:3888
# 创建myid文件
[root@hdp-01 conf]# touch /hadoop/zookeeper/data/myid
[root@hdp-01 conf]# vim /hadoop/zookeeper/data/myid
1
# 从hdp-01分发到剩余节点
[root@hdp-01 opt]# scp -r zookeeper-3.4.6/ hdp-02:$PWD
[root@hdp-01 opt]# scp -r zookeeper-3.4.6/ hdp-03:$PWD
[root@hdp-01 /]# scp -r hadoop/ hdp-02:$PWD
[root@hdp-01 /]# scp -r hadoop/ hdp-03:$PWD
# 修改myid文件
[root@hdp-02 /]# vim /hadoop/zookeeper/data/myid
2
[root@hdp-03 /]# vim /hadoop/zookeeper/data/myid
3
# 启动master
[root@hdp-01 zookeeper-3.4.6]# ./bin/zkServer.sh start
JMX enabled by default
Using config: /opt/zookeeper-3.4.6/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@hdp-01 zookeeper-3.4.6]# jps
26267 QuorumPeerMain
......
# 启动slave
[root@hdp-02 zookeeper-3.4.6]# ./bin/zkServer.sh start
JMX enabled by default
Using config: /opt/zookeeper-3.4.6/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@hdp-02 zookeeper-3.4.6]# jps
21830 QuorumPeerMain
......
[root@hdp-03 zookeeper-3.4.6]# ./bin/zkServer.sh start
JMX enabled by default
Using config: /opt/zookeeper-3.4.6/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@hdp-03 zookeeper-3.4.6]# jps
21979 QuorumPeerMain
......