zookeeper 部署

官网：

https://zookeeper.apache.org/

download

下载完成后赋值文件到centos /opt/software

单机部署

解压到/opt/module

tar -zxvf apache-zookeeper-3.7.1-bin.tar.gz -C /opt/module

重命名文件包zookeeper3.7.1

mv apache-zookeeper-3.7.1-bin/ zookeeper3.7.1

修改配置文件 zoo_sample.cfg (先创建zkData文件夹 mkdir zdData）

修改 zoo_sample.cfg 为 zoo.cfg

mv zoo_sample.cfg zoo.cfg

启动服务

bin/zkServer.sh start

注意：参数start前面没有杠-

启动客户端

[root@192 bin]# ./zkCli.sh

集群部署

修改zookeeper的配置文件 zoo.cfg
增加配置：
server.MYID=HOSTNAME:PORT_BETWEEN_SERVER_CLIENT:PORT_REELECTION
MYID:zkData/myid的内容
HOSTNAME:/etc/hosts 中映射的主机名
PORT_BETWEEN_SERVER_CLIENT：Leader与Follower 之间通信的端口
PORT_REELECTION：重新选举的PORT

zoo.cfg增加如下配置

server.2=machine136:2888:3888
server.3=machine137:2888:3888
server.4=machine138:2888:3888

配置完成一定关闭防火墙！一定关闭防火墙！一定关闭防火墙！

systemctl stop firewalld

使用 curlator 包实现进程锁测试

Pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>zookeeper</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>19</maven.compiler.source>
        <maven.compiler.target>19</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>


    <dependencies>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.7.1</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
        </dependency>


        <!-- curator -->
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-recipes</artifactId>
            <version>5.4.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.curator/curator-framework -->
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
            <version>5.4.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.curator/curator-test -->
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-test</artifactId>
            <version>5.4.0</version>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.curator/curator-client -->
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-client</artifactId>
            <version>5.4.0</version>
        </dependency>

    </dependencies>
</project>