php操作redis cluster集群成功实例

淡淡的烟草味﹌ 2022-07-19 00:10 194阅读 0赞

java操作redis cluster集群可使用jredis

php要操作redis cluster集群有两种方式：

1、使用phpredis扩展，这是个c扩展，性能更高，但是phpredis2.x扩展不行，需升级phpredis到3.0，但这个方案参考资料很少

2、使用predis，纯php开发，使用了命名空间，需要php5.3+，灵活性高

我用的是predis，下载地址[https://github.com/nrk/predis/zipball/master][https_github.com_nrk_predis_zipball_master]

下载好后重命名为predis，

server1：192.168.1.198  
server2：192.168.1.199

predis.php

<?php
    require 'predis/autoload.php';//引入predis相关包
    //redis实例
    $servers = array(
        'tcp://192.168.1.198:7000',
        'tcp://192.168.1.198:7001',
        'tcp://192.168.1.198:7002',
        'tcp://192.168.1.199:7003',
        'tcp://192.168.1.199:7004',
        'tcp://192.168.1.199:7005',
    );
    
    $client = new Predis\Client($servers, array('cluster' => 'redis'));
    
    $client->set("name1", "11");
    $client->set("name2", "22");
    $client->set("name3", "33");
    
    $name1 = $client->get('name1');
    $name2 = $client->get('name2');
    $name3 = $client->get('name3');
    var_dump($name1, $name2, $name3);die;
    ?>

name1，name2，name3是3个key，按照算法分配到3个slot上，有可能分到3台服务器上

首先运行predis.php查看结果：

![Center][]

然后登录到redis客户端进行集群验证：

server1

[root@localhost src]# redis-cli -c -p 7000
    127.0.0.1:7000> get name1
    -> Redirected to slot [12933] located at 192.168.1.199:7004
    "11"
    192.168.1.199:7004> get name2
    -> Redirected to slot [742] located at 192.168.1.199:7003
    "22"
    192.168.1.199:7003> get name3
    "33"
    192.168.1.199:7003>

server2

[root@localhost src]# redis-cli -c -p 7003
    127.0.0.1:7003> get name1
    -> Redirected to slot [12933] located at 192.168.1.199:7004
    "11"
    192.168.1.199:7004> get name2
    -> Redirected to slot [742] located at 192.168.1.199:7003
    "22"
    192.168.1.199:7003> get name3
    "33"
    192.168.1.199:7003>

可以看到数据分布在各个服务器上，可以根据ps -ef | grep redis，杀掉其中几个redis实例，再看效果

[https_github.com_nrk_predis_zipball_master]: https://github.com/nrk/predis/zipball/master
[Center]: /images/20220718/cd66b39753d34870ba65fbd3d03edb98.png