原链接&＃xff1a;
redis集群PHP解决方案 - 金客辰 - 博客园
https://blog.csdn.net/qq_34370829/article/details/88172608
Redis3.2.4 Cluster集群搭建
服务器环境&＃xff1a;
192.168.3.229
192.168.3.193
每台服务器搭建3个节点&＃xff0c;组成3个主节点&＃xff0c;3个从节点的redis集群。
注意&＃xff1a;防火墙一定要开放监听的redis端口&＃xff0c;否则会创建失败。
一、redis cluster安装
1、下载和编译安装
cd /usr/local/src
wget http://download.redis.io/releases/redis-3.2.4.tar.gz
tar -zxvf redis-3.2.4.tar.gz
cd redis-3.2.4/
make && make install
2、创建redis节点
选择2台服务器&＃xff0c;分别为&＃xff1a;192.168.3.229&＃xff0c;192.168.3.193&＃xff0c;每台服务器有3个节点&＃xff0c;组成3个主节点&＃xff0c;3个从节点的redis集群。
a、首先在192.168.3.229创建3个节点&＃xff1a;
cd /usr/local/src
mkdir redis_cluster #创建集群目录
cd redis_cluster/
mkdir 7000 7001 7002 #分别代表三个节点&＃xff0c;对应端口分别为7000、7001、7002
#redis.conf拷贝到7000目录
cp redis-3.2.4/redis.conf redis_cluster/7000/
#redis.conf拷贝到7001目录
cp redis-3.2.4/redis.conf redis_cluster/7001/
#redis.conf拷贝到7002目录
cp redis-3.2.4/redis.conf redis_cluster/7002/
b、分别对7000、7001&＃xff0c;7002文件夹中的3个redis.conf文件修改对应的配置&＃xff1a;
daemonize yes #redis后台运行
pidfile /var/run/redis_7000.pid #pidfile文件对应7000, 7001, 7002
port 7000 #端口7000, 7001, 7002
cluster-enabled yes #开启集群 把注释#去掉
cluster-config-file nodes_7000.conf #集群的配置 配置文件首次启动自动生成 7000,7001,7002&＃xff0c;存在/usr/local/src/redis-3.2.4/src目录
cluster-node-timeout 5000 #请求超时&＃xff0c;设置5秒即可
appendonly yes #aof日志开启&＃xff0c;有需要就开启&＃xff0c;它会每次写操作都记录一条日志
logfile "/home/xm6f/dev/redis_cluster/7000/logs/redis.log"
bind 192.168.1.105 #绑定当前服务器的IP&＃xff0c;否则的话在集群通信的时候会出现&＃xff1a;[ERR] Sorry, can&＃39;t connect to node 192.168.200.140:7001
dbfilename dump_7000.rdb #存在/home/xm6f/dev/redis-3.2.4/src目录
appendfilename "appendonly_7000.aof" #存在/home/xm6f/dev/redis-3.2.4/src目录
requirepass 123456 #设置密码&＃xff0c;每个节点的密码都必须一致的
masterauth 123456
在192.168.3.193创建3个节点&＃xff1a;对应的端口改为7003,7004,7005.配置对应的改一下就可以了。
3、两台机器启动各节点(两台服务器方式一样)
cd /usr/local/src/
redis-server /usr/local/src/redis-3.2.4/redis_cluster/7000/redis.conf
redis-server /usr/local/src/redis-3.2.4/redis_cluster/7001/redis.conf
redis-server /usr/local/src/redis-3.2.4/redis_cluster/7002/redis.conf
redis-server /usr/local/src/redis-3.2.4/redis_cluster/7003/redis.conf
redis-server /usr/local/src/redis-3.2.4/redis_cluster/7004/redis.conf
redis-server /usr/local/src/redis-3.2.4/redis_cluster/7005/redis.conf
4、查看服务
ps -ef | grep redis #查看是否启动成功
netstat -tnlp | grep redis #可以看到redis监听端口
5、杀死所有redis进程
pkill -9 redis
二、创建集群
前面已经准备好了搭建集群的redis节点&＃xff0c;接下来我们要把这些节点都串连起来搭建集群。官方提供了一个工具&＃xff1a;redis-trib.rb(/home/xm6f/dev/redis-3.2.4/src/redis-trib.rb) 看后缀就知道这东西不能直接执行&＃xff0c;它是用ruby写的一个程序&＃xff0c;所以我们还得安装ruby.
yum -y install ruby ruby-devel rubygems rpm-build
再用 gem 这个命令来安装 redis 接口&＃xff0c;gem是ruby的一个工具包。
gem install redis //等一会儿就好了
当然&＃xff0c;方便操作&＃xff0c;两台Server都要安装。
注意&＃xff1a;在执行gem install redis时&＃xff0c;报ERROR:Error installing redis:redis requires Ruby version >&＃61; 2.2.2异常。
点击此处查看解决方案
上面的步骤完事了&＃xff0c;接下来运行一下redis-trib.rb
redis-trib.rb
确认所有的节点都启动&＃xff0c;接下来使用参数 create 创建 (在192.168.1.160中来创建)
redis-trib.rb create --replicas 1 192.168.3.229:7000 192.168.3.229:7001 192.168.3.229:7002 192.168.3.193:7003 192.168.3.193:7004 192.168.3.193:7005
注意&＃xff1a;
a、--replicas 1参数表示为每个主节点创建一个从节点&＃xff0c;其他参数是实例的地址集合。
b、防火墙一定要开放监听的端口&＃xff0c;否则会创建失败。
[root&＃64;localhost redis-cluster]#
redis-trib.rb create --replicas 1 192.168.3.229:7000 192.168.3.229:7001 192.168.3.229:7002 192.168.3.193:7003 192.168.3.193:7004 192.168.3.193:7005
>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
127.0.0.1:7001
127.0.0.1:7002
127.0.0.1:7003
Adding replica 127.0.0.1:7004 to 127.0.0.1:7001
Adding replica 127.0.0.1:7005 to 127.0.0.1:7002
Adding replica 127.0.0.1:7006 to 127.0.0.1:7003
M: dfd510594da614469a93a0a70767ec9145aefb1a 127.0.0.1:7001 slots:0-5460 (5461 slots) master
M: e02eac35110bbf44c61ff90175e04d55cca097ff 127.0.0.1:7002 slots:5461-10922 (5462 slots) master
M: 4385809e6f4952ecb122dbfedbee29109d6bb234 127.0.0.1:7003 slots:10923-16383 (5461 slots) master
S: ec02c9ef3acee069e8849f143a492db18d4bb06c 127.0.0.1:7004 replicates dfd510594da614469a93a0a70767ec9145aefb1a
S: 83e5a8bb94fb5aaa892cd2f6216604e03e4a6c75 127.0.0.1:7005 replicates e02eac35110bbf44c61ff90175e04d55cca097ff
S: 10c097c429ca24f8720986c6b66f0688bfb901ee 127.0.0.1:7006 replicates 4385809e6f4952ecb122dbfedbee29109d6bb234
Can I set the above configuration? (type &＃39;yes&＃39; to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join......
>>> Performing Cluster Check (using node 127.0.0.1:7001)
M: dfd510594da614469a93a0a70767ec9145aefb1a 127.0.0.1:7001 slots:0-5460 (5461 slots) master
M: e02eac35110bbf44c61ff90175e04d55cca097ff 127.0.0.1:7002 slots:5461-10922 (5462 slots) master
M: 4385809e6f4952ecb122dbfedbee29109d6bb234 127.0.0.1:7003 slots:10923-16383 (5461 slots) master
M: ec02c9ef3acee069e8849f143a492db18d4bb06c 127.0.0.1:7004 slots: (0 slots) master replicates dfd510594da614469a93a0a70767ec9145aefb1a
M: 83e5a8bb94fb5aaa892cd2f6216604e03e4a6c75 127.0.0.1:7005 slots: (0 slots) master replicates e02eac35110bbf44c61ff90175e04d55cca097ff
M: 10c097c429ca24f8720986c6b66f0688bfb901ee 127.0.0.1:7006 slots: (0 slots) master replicates 4385809e6f4952ecb122dbfedbee29109d6bb234
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
上面显示创建成功&＃xff0c;有3个主节点&＃xff0c;3个从节点&＃xff0c;每个节点都是成功连接状态。
php操作redis cluster集群成功实例
PHP要操作redis cluster集群有两种方式&＃xff1a;
1、使用phpredis扩展&＃xff0c;这是个c扩展&＃xff0c;性能更高&＃xff0c;但是phpredis2.x扩展不行&＃xff0c;需升级phpredis到3.0&＃xff0c;但这个方案参考资料很少
2、使用predis&＃xff0c;纯php开发&＃xff0c;使用了命名空间&＃xff0c;需要php5.3&＃43;&＃xff0c;灵活性高
我用的是predis&＃xff0c;下载地址https://github.com/nrk/predis/zipball/master
下载好后重命名为predis&＃xff0c;
server1&＃xff1a;192.168.3.229
server2&＃xff1a;192.168.3.193
predis.php
require &＃39;predis/autoload.php&＃39;;//引入predis相关包
//redis实例
$servers &＃61; array( &＃39;tcp://192.168.3.229:7000&＃39;,
&＃39;tcp://192.168.3.229:7001&＃39;, &＃39;tcp://192.168.3.229:7002&＃39;, &＃39;tcp://192.168.3.193:7003&＃39;, &＃39;tcp://192.168.3.193:7004&＃39;, &＃39;tcp://192.168.3.193:7005&＃39;,
);
$client &＃61; new PredisClient($servers, array(&＃39;cluster&＃39; &＃61;> &＃39;redis&＃39;));
$client->set("name1", "11");
$client->set("name2", "22");
$client->set("name3", "33");
$name1 &＃61; $client->get(&＃39;name1&＃39;);
$name2 &＃61; $client->get(&＃39;name2&＃39;);
$name3 &＃61; $client->get(&＃39;name3&＃39;);
var_dump($name1, $name2, $name3);
die;
?>
name1&＃xff0c;name2&＃xff0c;name3是3个key&＃xff0c;按照算法分配到3个slot上&＃xff0c;有可能分到3台服务器上
首先运行predis.php查看结果&＃xff1a;
然后登录到redis客户端进行集群验证&＃xff1a;
server1
[root&＃64;localhost src]# redis-cli -c -p 7000
127.0.0.1:7000> get name1
-> Redirected to slot [12933] located at 192.168.1.199:7004
"11"
192.168.1.199:7004> get name2
-> Redirected to slot [742] located at 192.168.1.199:7003
"22"
192.168.1.199:7003> get name3
"33"
192.168.1.199:7003>
server2
[root&＃64;localhost src]# redis-cli -c -p 7003
127.0.0.1:7003> get name1
-> Redirected to slot [12933] located at 192.168.1.199:7004
"11"
192.168.1.199:7004> get name2
-> Redirected to slot [742] located at 192.168.1.199:7003
"22"
192.168.1.199:7003> get name3
"33"
192.168.1.199:7003>
可以看到数据分布在各个服务器上&＃xff0c;可以根据ps -ef | grep redis&＃xff0c;杀掉其中几个redis实例&＃xff0c;再看效果
PHP连接Redis服务&＃xff08;集群模式和单模式&＃xff09;
//连接单个的Redis 服务
#$redis &＃61; new Redis();
#$redis->connect(&＃39;10.1.1.35&＃39;,6379);
#echo $redis->get("data_80300_0_");
#连接Redis集群
$redis_list &＃61; [&＃39;10.1.1.35:6379&＃39;,&＃39;10.1.1.151:6379&＃39;,&＃39;10.1.1.153:6379&＃39;];
$redisCluster &＃61; new RedisCluster(NUll,$redis_list);
echo $redisCluster->get("data_80300_0_");
echo "n";
echo $redisCluster->get("data_76402_0_");
echo "n";
echo $redisCluster->get("data_78989_0_");
# echo "Server is running: " . $redis->ping();
echo "n";
?>
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