CentOS7安装zookeeper

作者QQ：67065435 QQ群：821635552
本站内容全部为作者原创，转载请注明出处！
版本列表
安装JAVA+MAVEN3

下载安装zookeeper

cd /root
wget https://github.com/apache/zookeeper/archive/refs/tags/release-3.4.13.tar.gz
tar -xf release-3.4.13.tar.gz
mv ./zookeeper-release-3.4.13 /usr/local/zookeeper

cd /usr/local/zookeeper
ant clean jar
ant compile_jute
cd /usr/local/zookeeper/src/c
autoreconf -if
./configure
make
make install

mkdir /usr/local/zookeeper/var
mkdir /usr/local/zookeeper/var/log
echo 1 > /usr/local/zookeeper/var/log/myid
cp /usr/local/zookeeper/conf/zoo_sample.cfg /usr/local/zookeeper/conf/zoo.cfg

修改配置

vim /usr/local/zookeeper/conf/zoo.cfg

dataDir=/usr/local/zookeeper/var/log
dataLogDir=/usr/local/zookeeper/var/log
clientPort=2181
# 多台server在下面配置即可,如果单台服务器构建多个server,则每个server用过的端口不能重复使用
# 格式: server.[n]=[server_ip]:[server与leader交互端口]:[server选举leader端口]
# server.1=192.168.0.123:2182:2183
# server.2=192.168.0.123:2182:2183
# server.3=192.168.0.123:2182:2183
maxClientCnxns=60
# purgeInterval含义: 0-禁用自动清除 1-使用自动清除
autopurge.purgeInterval=1

ESC
:wq

修改环境变量脚本

vim /usr/local/zookeeper/bin/zkEnv.sh

ZOO_LOG_DIR="/usr/local/zookeeper/var/log"

ESC
:wq

/usr/local/zookeeper/bin/zkEnv.sh

单元文件

cd /etc/systemd/system

vim zookeeper.service

[Unit]
Description=开机启动zookeeper.
After=default.target network.target

[Service]
User=root
Group=root
Type=forking
ExecStart=/usr/local/zookeeper/bin/zkServer.sh start
PrivateTmp=false
Restart=always

[Install]
WantedBy=multi-user.target

ESC
:wq

systemctl daemon-reload
systemctl restart zookeeper
systemctl enable zookeeper

安装PHP扩展

安装php扩展libzookeeper

cd /root
wget https://github.com/Timandes/libzookeeper/archive/v0.7.2.tar.gz
tar -xvf v0.7.2.tar.gz
cd libzookeeper-0.7.2

phpize
./configure
make
make install

# 本扩展用来调起zookeeper-admin,仓库地址:
https://github.com/Timandes/zookeeper-admin.git

安装php扩展:zookeeper

cd /root
wget https://pecl.php.net/get/zookeeper-0.7.2.tgz
tar -zxvf zookeeper-0.7.2.tgz
cd zookeeper-0.7.2/

phpize
./configure
make
make install

修改php.ini

vim /usr/local/php/lib/php.ini

extension=libzookeeper.so
extension=zookeeper.so

ESC
:wq

PHP使用进程公共节点

# 出了$zc的作用域之后,节点将不存在
$zc = new \Zookeeper('127.0.0.1:2181');
//或者
//$zc = new \Zookeeper();
//$zc->connect('127.0.0.1:2181');
$zookeeper_key = '/xxx';
if ($zc->exists($zookeeper_key)) {
    //如果节点存在,则程序正在运行,不运行新的程序
    return false;
}else{
    //如果节点文件不存在,则创建进程节点文件,运行程序
    $acl = [
        [
            'perms' => \Zookeeper::PERM_ALL,//共享节点(用来跨进程执行某个程序)
            'scheme' => 'world',
            'id' => 'anyone',
        ]
    ];
    //尝试创建节点
    //EPHEMERAL: 临时节点
    //EPHEMERAL_SEQUENTIAL: 临时顺序节点
    //PERSISTENT: 持久节点(暂时别用)
    //PERSISTENT_SEQUENTIAL: 持久顺序节点(暂时别用)
    $zookeeper_key_res = $zc->create($zookeeper_key, '这是节点的值', $acl, \Zookeeper::EPHEMERAL);//临时节点(可共享的)
    if ($zookeeper_key_res == $zookeeper_key) {
        //创建节点成功运行程序
        //做些什么,比如等待10秒
        sleep(10);
        //可以尝试取节点的值
        //$zookeeper_val = $zc->get($zookeeper_key);
        //echo $zookeeper_val;
        $zc->delete($zookeeper_key);//其实不执行也会删除,因为这是一个临时节点,且return之后不再能取到$zc
        return true;
    } else {
        //创建节点失败不运行程序
        return false;
    }
}

参考链接
参考链接

CentOS7安装zookeeper(消息订阅)

CentOS7安装zookeeper

安装PHP扩展

results matching ""

No results matching ""