Zookeeper集羣安裝

1. 在根目錄建立zookeeper文件夾（service一、service二、service3都建立）

[root@localhost /]# mkdir zookeeper

經過Xshell上傳文件到service1服務器：上傳zookeeper-3.4.6.tar.gz到/software文件夾

2.遠程copy將service1下的/software/zookeeper-3.4.6.tar.gz到service二、service3

[root@localhost software]# scp -r /software/zookeeper-3.4.6.tar.gz root@192.168.2.212:/software/

[root@localhost software]# scp -r /software/zookeeper-3.4.6.tar.gz root@192.168.2.213:/software/

3.copy /software/zookeeper-3.4.6.tar.gz到/zookeeper/目錄（service一、service二、service3都執行）

[root@localhost software]# cp /software/zookeeper-3.4.6.tar.gz /zookeeper/

4.安裝解壓zookeeper-3.4.6.tar.gz（service一、service二、service3都執行）

[root@localhost /]# cd /zookeeper/

[root@localhost zookeeper]# tar -zxvf zookeeper-3.4.6.tar.gz

5.在/zookeeper建立兩個目錄：zkdata、zkdatalog（service一、service二、service3都建立）

[root@localhost zookeeper]# mkdir zkdata

[root@localhost zookeeper]# mkdir zkdatalog

6.進入/zookeeper/zookeeper-3.4.6/conf/目錄

[root@localhost zookeeper]# cd /zookeeper/zookeeper-3.4.6/conf/

[root@localhost conf]# ls

configuration.xsl  log4j.properties  zoo.cfg  zoo_sample.cfg

7. 修改zoo.cfg文件

# 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=/zookeeper/zkdata

dataLogDir=/zookeeper/zkdatalog

# 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.

#

#

#

# 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

server.1=192.168.2.211:12888:13888

server.2=192.168.2.212:12888:13888

server.3=192.168.2.213:12888:13888

8. 同步修改service二、service3的zoo.cfg配置

9. myid文件寫入（進入/zookeeper/zkdata目錄下）

[root@localhost /]# cd /zookeeper/zkdata

[root@localhost /]# echo 1 > myid

10. myid文件寫入service二、service3

echo 2 > myid

echo 3 > myid

11.查看zk命令：

[root@localhost ~]# cd /zookeeper/zookeeper-3.4.6/bin/

[root@localhost bin]# ls

README.txt  zkCleanup.sh  zkCli.cmd  zkCli.sh  zkEnv.cmd  zkEnv.sh  zkServer.cmd  zkServer.sh  zookeeper.out

12.執行zkServer.sh查看詳細命令：

[root@localhost bin]# ./zkServer.sh

JMX enabled by default

Using config: /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg

Usage: ./zkServer.sh {start|start-foreground|stop|restart|status|upgrade|print-cmd}

13. 在service一、service二、service3分別啓動zk服務

[root@localhost bin]# ./zkServer.sh start

14. jps查看zk進程

[root@localhost bin]# jps

31483 QuorumPeerMain

31664 Jps

15. 分別在service一、service二、service3查看zk狀態（能夠看到leader和follower節點）

[root@localhost bin]# ./zkServer.sh status

JMX enabled by default

Using config: /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg

Mode: follower

[root@localhost bin]# ./zkServer.sh status

JMX enabled by default

Using config: /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg

Mode: leader

16. 看到leader和follower節點已經安裝成功

分佈式的一些解決方案，有願意瞭解的朋友能夠找咱們團隊探討 。

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