Linux 安装 Zookeeper 伪集群

谁借莪１个温暖的怀抱￠ 2022-06-15 10:19 280阅读 0赞

### 一、安装准备 ###

*  **下载`Zookeeper`：[CentOS 7 下载 安装 Zookeeper][CentOS 7 _ _ Zookeeper]**
 *  **安装`JDK`：[CentOS 7 下载 安装 JDK][CentOS 7 _ _ JDK]**  
    ![在这里插入图片描述][2019092610062578.png]

--------------------

### 二、`Zookeeper`伪集群模式 ###

**伪集群模式：是在同一主机启动多个zookeeper并组成集群。**

#### A、复制多份安装包 ####

mkdir -p /data/opt/zookeeper
    
    cp -r /data/opt/apache-zookeeper-3.5.5-bin/ /data/opt/zookeeper/apache-zookeeper-3.5.5_2181
    cp -r /data/opt/apache-zookeeper-3.5.5-bin/ /data/opt/zookeeper/apache-zookeeper-3.5.5_2182
    cp -r /data/opt/apache-zookeeper-3.5.5-bin/ /data/opt/zookeeper/apache-zookeeper-3.5.5_2183

![在这里插入图片描述][2019092315251573.png]

#### B、创建`data`、`log`存储目录 ####

mkdir -p /data/data/zookeeper/2181/data
    mkdir -p /data/data/zookeeper/2181/log
    
    mkdir -p /data/data/zookeeper/2182/data
    mkdir -p /data/data/zookeeper/2182/log
    
    mkdir -p /data/data/zookeeper/2183/data
    mkdir -p /data/data/zookeeper/2183/log

![在这里插入图片描述][20190923154632967.png]  
![在这里插入图片描述][20190923154657117.png]  
![在这里插入图片描述][20190923154719849.png]

#### C、新增`zoo.cfg`配置文件 ####

cd /data/opt/zookeeper/apache-zookeeper-3.5.5_2181
    cp ./conf/zoo_sample.cfg ./conf/zoo.cfg
    
    cd /data/opt/zookeeper/apache-zookeeper-3.5.5_2182
    cp ./conf/zoo_sample.cfg ./conf/zoo.cfg
    
    cd /data/opt/zookeeper/apache-zookeeper-3.5.5_2183
    cp /conf/zoo_sample.cfg ./conf/zoo.cfg

*  **`/data/opt/zookeeper/apache-zookeeper-3.5.5_2181/conf/zoo.cfg`**

# 基本事件单元，单位毫秒。
    tickTime=2000
    
    initLimit=10
    syncLimit=5
    
    # 存储内存中数据库快照的位置，默认是/tmp/zookeeper
    dataDir=/data/data/zookeeper/2181/data
    
    # 日志路径，也就是事务日志。
    dataLogDir=/data/data/zookeeper/2181/log
    
    # 监听客户端连接的端口
    clientPort=2181
    
    server.1=127.0.0.1:2281:2381
    server.2=127.0.0.1:2282:2382
    server.3=127.0.0.1:2283:2383

*  **`/data/opt/zookeeper/apache-zookeeper-3.5.5_2182/conf/zoo.cfg`**

# 基本事件单元，单位毫秒。
    tickTime=2000
    
    initLimit=10
    syncLimit=5
    
    # 存储内存中数据库快照的位置，默认是/tmp/zookeeper
    dataDir=/data/data/zookeeper/2182/data
    
    # 日志路径，也就是事务日志。
    dataLogDir=/data/data/zookeeper/2182/log
    
    # 监听客户端连接的端口
    clientPort=2182
    
    server.1=127.0.0.1:2281:2381
    server.2=127.0.0.1:2282:2382
    server.3=127.0.0.1:2283:2383

*  **`/data/opt/zookeeper/apache-zookeeper-3.5.5_2183/conf/zoo.cfg`**

# 基本事件单元，单位毫秒。
    tickTime=2000
    
    initLimit=10
    syncLimit=5
    
    # 存储内存中数据库快照的位置，默认是/tmp/zookeeper
    dataDir=/data/data/zookeeper/2183/data
    
    # 日志路径，也就是事务日志。
    dataLogDir=/data/data/zookeeper/2183/log
    
    # 监听客户端连接的端口
    clientPort=2183
    
    server.1=127.0.0.1:2281:2381
    server.2=127.0.0.1:2282:2382
    server.3=127.0.0.1:2283:2383

#### D、新增`myid`文件 ####

**`myid`文件内容是当前服务器的编号。**

echo '1' > /data/data/zookeeper/2181/data/myid
    
    echo '2' > /data/data/zookeeper/2182/data/myid
    
    echo '3' > /data/data/zookeeper/2183/data/myid

#### E、启动`Zookeeper`集群 ####

/data/opt/zookeeper/apache-zookeeper-3.5.5_2181/bin/zkServer.sh start
    
    /data/opt/zookeeper/apache-zookeeper-3.5.5_2182/bin/zkServer.sh start
    
    /data/opt/zookeeper/apache-zookeeper-3.5.5_2183/bin/zkServer.sh start

![在这里插入图片描述][20190923155418221.png]

#### F、查看`Zookeeper`集群状态 ####

/data/opt/zookeeper/apache-zookeeper-3.5.5_2181/bin/zkServer.sh status
    
    /data/opt/zookeeper/apache-zookeeper-3.5.5_2182/bin/zkServer.sh status
    
    /data/opt/zookeeper/apache-zookeeper-3.5.5_2183/bin/zkServer.sh status

![在这里插入图片描述][20190923174805458.png]

#### G、测试`Zookeeper`集群 ####

# 连接端口 2181 Zookeeper服务器
    /data/opt/zookeeper/apache-zookeeper-3.5.5_2181/bin/zkCli.sh
    
    # 创建节点看是否同步
    create /data test

![在这里插入图片描述][20190923224558915.png]

# 连接端口 2183 Zookeeper服务器
    /data/opt/zookeeper/apache-zookeeper-3.5.5_2183/bin/zkCli.sh -server localhost:2181
    
    # 查看 data 节点
    ls /
    
    # 查看 data 节点数据
    get /data

![在这里插入图片描述][20190923224718997.png]

[CentOS 7 _ _ Zookeeper]: https://blog.csdn.net/yhj19920417/article/details/46969921
[CentOS 7 _ _ JDK]: https://blog.csdn.net/yhj19920417/article/details/46547181
[2019092610062578.png]: /images/20220615/7ee8849258c741a0b0460703d3ac714b.png
[2019092315251573.png]: /images/20220615/3d03b9e0a2c443b6b4a96d746b43be52.png
[20190923154632967.png]: /images/20220615/a5d1179c9c484abb93251f0f7070c1f4.png
[20190923154657117.png]: /images/20220615/0bd241b1ea254eca844fc4f44e316acf.png
[20190923154719849.png]: /images/20220615/d5edb0512e0b41648acecc4eea982b26.png
[20190923155418221.png]: /images/20220615/9e955b107a2046c588f4d2b7f1526e1a.png
[20190923174805458.png]: /images/20220615/d7e63020cd2547d68b6088699218fb01.png
[20190923224558915.png]: /images/20220615/d545bb859b0a48d5a4096c8a16f44480.png
[20190923224718997.png]: /images/20220615/7e454cfd01614bc794db88e95c267ea0.png