參考連結：http://zookeeper.apache.org/

系統：

烏班圖16.04

虛擬機器（zk一般要求奇數臺節點）：

192.168.0.15     ubuntu15

192.168.0.16     ubuntu16

192.168.0.17     ubuntu17

1、standalone安裝：

1、下載：

wget http://apache.osuosl.org/zookeeper/zookeeper-3.4.10/zookeeper-3.4.10.tar.gz

2、解壓：

tar -xzvf zookeeper-3.4.6.tar.gz -C   /usr/local

3、複製配置檔案：

cd conf
cp zoo_sample.cfg zoo.cfg

4、standalone無需配置zoo.cfg，叢集注意這裡需要配置

5、啟動：

sh zkServer.sh start //啟動

這裡報錯：

zkServer.sh: 81: /usr/local/zookeeper-3.4.10/bin/zkEnv.sh: Syntax error: "(" unexpected (expecting "fi")

根據https://blog.csdn.net/u011404265/article/details/72869920提供的解決方案已解決

[email protected]:~# cd /bin/
[email protected]
 
:/bin# ls -l /bin/sh
lrwxrwxrwx 1 root root 4 Dec 23 22:30 /bin/sh -> dash(預設)
[email protected]:/bin# ln -sf bash /bin/sh
[email protected]:/bin# ls -l /bin/sh
lrwxrwxrwx 1 root root 4 Dec 23 22:37 /bin/sh -> bash

檢視

[email protected]:/usr/local/zookeeper-3.4.10/bin# ps -ef | grep 'zookeeper'
root      1215     1  0 23:39 pts/0    00:00:02 java -Dzookeeper.log.dir=. -Dzookeeper.root.logger=INFO,CONSOLE -cp /usr/local/zookeeper-3.4.10/bin/../build/classes:/usr/local/zookeeper-3.4.10/bin/../build/lib/*.jar:/usr/local/zookeeper-3.4.10/bin/../lib/slf4j-log4j12-1.6.1.jar:/usr/local/zookeeper-3.4.10/bin/../lib/slf4j-api-1.6.1.jar:/usr/local/zookeeper-3.4.10/bin/../lib/netty-3.10.5.Final.jar:/usr/local/zookeeper-3.4.10/bin/../lib/log4j-1.2.16.jar:/usr/local/zookeeper-3.4.10/bin/../lib/jline-0.9.94.jar:/usr/local/zookeeper-3.4.10/bin/../zookeeper-3.4.10.jar:/usr/local/zookeeper-3.4.10/bin/../src/java/lib/*.jar:/usr/local/zookeeper-3.4.10/bin/../conf: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.local.only=false org.apache.zookeeper.server.quorum.QuorumPeerMain /usr/local/zookeeper-3.4.10/bin/../conf/zoo.cfg
root      1444  1177  0 23:53 pts/0    00:00:00 grep --color=auto zookeeper
 

使用：

zkClient:

[email protected]:/usr/local/zookeeper-3.4.10/bin# ./zkCli.sh -timeout 5000 -server 192.168.0.17:2181

2、叢集安裝（3個節點）

因為leader是選舉產生，演算法原因一般配置奇數個節點

1、安裝：分別在三臺機器安裝zk，博主直接裝了一臺然後克隆了三臺虛擬機器。

2、配置zoo.cfg:安裝standalone版的時候複製了 conf/zoo.cfg 檔案，但是沒有進行配置，如果需要搭建叢集，則需要對此檔案進行配置！這裡隨便找一臺（ubuntu15）對zoo.cfg進行配置：

vim zoo.cfg

dataDir=/usr/local/zk/data
dataLogDir=/usr/local/zk/logs
server.1=0.0.0.0:2881:3881
server.2=ubuntu16:2882:3882
server.3=ubuntu17:2883:3883
autopurge.snapRetainCount=3

3、根據配置的dataDir 和 dataLogDir 建立目錄：

[email protected]:/usr/local/zookeeper-3.4.10/bin# mkdir -p  /usr/local/zk/data
[email protected]:/usr/local/zookeeper-3.4.10/bin# mkdir -p  /usr/local/zk/logs

4、myid設定，因為這是叢集中的第一臺，這裡給它id設定為1

[email protected]:/usr/local/zk/data# touch /usr/local/zk/data/myid
[email protected]:/usr/local/zk/data# echo 1 > /usr/local/zk/data/myid

5、這樣第一臺配置完成，我直接複製第一臺的配置檔案到其它兩臺，略作修改後，建立data目錄修改節點id

scp -r  [email protected]:/usr/local/zookeeper-3.4.10/conf/zoo.cfg ./

a、zoo.cfg 中本機ip需要設為0.0.0.0

b、第二臺myid需要設定為2，第三臺設定為3.。。。。

6、依次啟動三個節點

ubuntu15

[email protected]:/usr/local/zookeeper-3.4.10/bin# sh zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.10/bin/../conf/zoo.cfg
Starting zookeeper ... >>>>>>>>>>>>>>>>>>>>
STARTED
[email protected]:/usr/local/zookeeper-3.4.10/bin# sh zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.10/bin/../conf/zoo.cfg
Error contacting service. It is probably not running.
[email protected]:/usr/local/zookeeper-3.4.10/bin# sh zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.10/bin/../conf/zoo.cfg
Mode: follower

[email protected]:/usr/local/zookeeper-3.4.10/bin# sh zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.10/bin/../conf/zoo.cfg
Starting zookeeper ... >>>>>>>>>>>>>>>>>>>>
STARTED
[email protected]:/usr/local/zookeeper-3.4.10/bin# sh zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.10/bin/../conf/zoo.cfg
Mode: leader

ubuntu17

[email protected]:/usr/local/zookeeper-3.4.10/bin# sh zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.10/bin/../conf/zoo.cfg
Starting zookeeper ... >>>>>>>>>>>>>>>>>>>>
STARTED
[email protected]:/usr/local/zookeeper-3.4.10/bin# sh zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-3.4.10/bin/../conf/zoo.cfg
Mode: follower