redis集群的搭建

########环境#########
centos 7.2 , 
gcch 环境
ruby 2.0.0
redis 3.2.8 
redis-3.3.3gem

 

公司要求搭建redis集群, 本来觉得挺好搞的,没想到弄到现在....

1, 环境准备

gcc , ruby 等环境准备

yum -y install gcc ruby ruby-devel rubygems rpm-build zlib

redis-ruby接口安装, 我直接yum安装的,

gem install redis

你也可以下载 redis.3.3.3.gem 然后执行命令

 

gem install redis-3.3.3.gem

2, 再说下单机redis的搭建方法

1, 下载redis 3.2.8 的安装包: 

wget http://download.redis.io/releases/redis-3.2.8.tar.gz

2, 解压

tar -zxvf redis-3.2.8

3, 进入解压目录下

make

然后安装

make install PREFIX=/opt/wenbronk_soft/redis/redis1

安装完成后, 可在redis1 目录下看到一个bin目录, 对, 就是他了.

 

4, 此时已经可以访问了, 但需要更改下配置文件, 才可以使用外部ip访问

redis.conf 在redis的解压目录下

cp /opt/wenbronk_soft/redis/redis-3.2.8/redis.conf /opt/wenbronk_soft/redis/redis1/bin

vim 

bind 192.168.xx.202       (当前主机的ip)

5, 启动

./redis-server ./redis.conf

现在已经可以通过本地的 ./redis-cli -h localhost -p 6379 或者通过外部ip进行访问了.

3, 接下来是集群的安装

安装集群之前, 首先要保证单个的redis是空的, 也就是没有dump.rb文件没有密码设置, 就是 redis.conf中 masterauth        masterauth         没有设置

 

这儿搭建一个台机器上的伪集群, 分布式集群搭建和这个类似, 只是使用ruby创建集群时ip:port有所区别

注意:     至少需要 3  master+ 2  slave, 官方建议是 3 + 3 , 这儿使用 3  mater + 3 slave

 

1, 修改 redis.conf

添加守护进程: daemonize

port  7000                                        //端口7000,7001,7002,7003,7004,7005,7005
bind 本机ip                                       //默认ip为127.0.0.1 需要改为其他节点机器可访问的ip 否则创建集群时无法访问对应的端口，无法创建集群
daemonize    yes                               //redis后台运行, 
# pidfile  /var/run/redis_7000.pid          //pidfile文件对应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
cluster-node-timeout  15000                //请求超时  默认15秒，可自行设置
appendonly  yes                           //aof日志开启  有需要就开启，它会每次写操作都记录一条日志　

2, 复制解压目录下的  redis-trib.rb 到 安装 目录下 (/opt/wenbronk_soft/redis/redis/bin) 

cp /opt/wenbronk_soft/redis/redis-3.2.8/src/redis-trib.rb /opt/wenbronk_soft/redis/redis/bin

此时bin下目录结构为: 

 

3, 复制bin为另外6个实例

4, 进入到每个目录下更改 port设置

从 7000 - 7005

5, 使用启动脚本启动6个实例

cd bin
./redis-server ./redis.conf
cd ..
cd bin1
./redis-server ./redis.conf
cd ..
cd bin2
./redis-server ./redis.conf
cd ..
cd bin3
./redis-server ./redis.conf
cd ..
cd bin4
./redis-server ./redis.conf
cd ..
cd bin5
./redis-server ./redis.conf
cd ..

修改脚本权限

chmod u+x start.sh

6, 查看redis实例额运行状态

ps -ef | grep redis

netstat -tnlp | grep redis

 

 7, 创建集群 

./redis-trib.rb  create  --replicas  1 192.168.50.202:7000 192.168.50.202:7001 192.168.50.202:7002 192.168.50.202:7003 192.168.50.202:7004 192.168.50.202:7005

 

 

[wenbronk@localhost bin]$ ./redis-trib.rb  create  --replicas  1 192.168.50.202:7000 192.168.50.202:7001 192
.168.50.202:7002 192.168.50.202:7003 192.168.50.202:7004 192.168.50.202:7005>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.50.202:7000
192.168.50.202:7001
192.168.50.202:7002
Adding replica 192.168.50.202:7003 to 192.168.50.202:7000
Adding replica 192.168.50.202:7004 to 192.168.50.202:7001
Adding replica 192.168.50.202:7005 to 192.168.50.202:7002
M: b06c9670ad6e16cf41c9eeefb8260ad29dbb52e8 192.168.50.202:7000slots:0-5460 (5461 slots) master
M: 048291cbc8e9ccf81de57f02150447340d310fe0 192.168.50.202:7001slots:5461-10922 (5462 slots) master
M: 740557eca4a8fa31d67fe6a7f6b34814f3f96094 192.168.50.202:7002slots:10923-16383 (5461 slots) master
S: 63a9d243b8da03169dee24ec9403e50f36ab7cb0 192.168.50.202:7003replicates b06c9670ad6e16cf41c9eeefb8260ad29dbb52e8
S: 824b5d23e012cd7082701e3737ce8ea21eb8abe3 192.168.50.202:7004replicates 048291cbc8e9ccf81de57f02150447340d310fe0
S: f00948f8f9df4c10cba340cab3f0767d98f00b77 192.168.50.202:7005replicates 740557eca4a8fa31d67fe6a7f6b34814f3f96094
Can I set the above configuration? (type 'yes' 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 192.168.50.202:7000)
M: b06c9670ad6e16cf41c9eeefb8260ad29dbb52e8 192.168.50.202:7000slots:0-5460 (5461 slots) master1 additional replica(s)
M: 740557eca4a8fa31d67fe6a7f6b34814f3f96094 192.168.50.202:7002slots:10923-16383 (5461 slots) master1 additional replica(s)
S: 824b5d23e012cd7082701e3737ce8ea21eb8abe3 192.168.50.202:7004slots: (0 slots) slavereplicates 048291cbc8e9ccf81de57f02150447340d310fe0
S: f00948f8f9df4c10cba340cab3f0767d98f00b77 192.168.50.202:7005slots: (0 slots) slavereplicates 740557eca4a8fa31d67fe6a7f6b34814f3f96094
M: 048291cbc8e9ccf81de57f02150447340d310fe0 192.168.50.202:7001slots:5461-10922 (5462 slots) master1 additional replica(s)
S: 63a9d243b8da03169dee24ec9403e50f36ab7cb0 192.168.50.202:7003slots: (0 slots) slavereplicates b06c9670ad6e16cf41c9eeefb8260ad29dbb52e8
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

ok, 集群搭建完成

 深坑, redis 集群之间的通讯端口为basePort + 1w

4 链接集群

1, redis客户端连接

 -c 连接集群

-p 如果bind 绑定的是本机地址, 那么必须加

./redis-cli -h 192.168.50.202 -p 7006 -c

2, 简单测试

set abc 1234
get abc

 

3, java连接

Jedis Cluster 会自动去发现集群中的节点，所以JedisClusterNodes只需要 add一个实例

ps -ef | grep redis | awk '{print $2}' | xargs kill -9

 

明天单独写吧.. 东西很多..

 

原创地址, http://www.cnblogs.com/wenbronk/p/6864390.html  转载请注明出处, 谢谢