Redis Cluster集群搭建

 

Redis Cluster 集群搭建

 

一、  原生方式安装：

cd /opt

wget http://download.redis.io/releases/redis-4.0.11.tar.gz

tar zxvf redis-4.0.11.tar.gz

cd redis-4.0.11

(如果编译时报: “zmalloc.h:50:31: 致命错误：jemalloc/jemalloc.h：没有那个文件或目录”，可以使用make MALLOC=libc解决。)

make && make install[或make PREFIX=/data/soft/redis install]

redis-cli –v

cp redis.conf redis.conf.bak

redis-cli -h 192.168.26.52 -p 6379

mkdir cluster

cp redis.conf ./cluster/redis-8001.conf

vim redis-8001.conf     //先创建未有的目录

…

bind 192.168.xx.xx

port 8001

dir "/opt/redis-4.0.11/"

logfile "/opt/redis-4.0.11/log/redis-8001.log"

appendonly yes

daemonize yes //以独立服务启动

pidfile "/var/run/redis-8001.pid"

dbfilename "dump.rdb"

# requirepass 123456

appendfilename "appendonly.aof"

#集群模式设置

cluster-enabled yes 

cluster-config-file /opt/redis-4.0.11/nodes/nodes-8001.conf

cluster-node-timeout 15000 

复制5份配置文件，改好端口即可。

注意：

设置密码后，从节点三份配置文件中要多添加一条：

#从节点同步主节点的密码

masterauth puNE4d9wRvN+XUY=qPh7f

不然，同步会出错。（ERROR: ....AUTHENTICATED...）

cd ../src

ln -s redis-server /usr/local/bin/redis-server

ln -s redis-cli /usr/local/bin/redis-cli

ln -s redis-trib.rb /usr/local/bin/redis-trib.rb

cd ../cluster

redis-server redis-8001.conf &

redis-server redis-8002.conf &

redis-server redis-8003.conf &

redis-server redis-8004.conf &

redis-server redis-8005.conf &

redis-server redis-8006.conf &

ps -ef|grep redis

redis-cli -h 192.168.26.52 -p 8001

192.168.26.52:8001>cluster nodes

…>cluster meet 192.168.26.52 8002

…>cluster meet 192.168.26.52 8003

…>cluster meet 192.168.26.52 8004

…>cluster meet 192.168.26.52 8005

…>cluster meet 192.168.26.52 8006

…>cluster nodes

…>set aa bb

(error)CLUSTERDOWN...下面启动集群...

…>cluster info

…>exit

#redis-cli -h 192.168.26.52 -p 8001 -a 密码 cluster addslots {0..5461}

#redis-cli -h 192.168.26.52 -p 8002 -a 密码 cluster addslots {5462..10922}

#redis-cli -h 192.168.26.52 -p 8003 -a 密码 cluster addslots {10923..16383}

…>cluster info

…>exit

...>cluster nodes    　　 //查看主节点ID

#按照一个slave复制一个master来分配

192.168.26.52:8004>cluster replicate <要复制的主节点ID>

192.168.26.52:8005>cluster replicate <要复制的主节点ID>

192.168.26.52:8006>cluster replicate <要复制的主节点ID>

搭建完成。

二、  利用Ruby工具安装：

1、安装Ruby：

#wget https://cache.ruby-lang.org/pub/ruby/2.4/ruby-2.4.4.tar.gz

tar zxvf ruby-2.4.4.tar.gz

cd ruby-2.4.4

./configure --prefix=/usr/local/ruby

make && make install

cd /usr/local/ruby/

cp bin/ruby /usr/local/bin/

cp bin/gem /usr/local/bin/

2、安装rubygem redis依赖：

wget http://rubygems.org/downloads/redis-4.0.2.gem

gem install -l redis-4.0.2.gem

gem list check redis gem

gem –v

gem update --system

gem –v

gem list check redis gem

cp redis-4.0.11/src/redis-trib.rb /usr/local/bin/

redis-trib.rb

cd redis-4.0.11

mkdir cluster

vim redis.conf

…

…

cp redis.conf cluster/redis-8001.conf

cd cluster

...

redis-server redis-8001.conf &

redis-server redis-8002.conf &

redis-server redis-8003.conf &

redis-server redis-8004.conf &

redis-server redis-8005.conf &

redis-server redis-8006.conf &

ps -ef|grep redis

#redis-trib.rb create --replicas 1 127.0.0.1:8001 127.0.0.1:8002 127.0.0.1:8003 127.0.0.1:8004 12

7.0.0.1:8005 127.0.0.1:8006

###########如果配置文件设置了密码，这时会启动不成功，报“[ERR] Sorry, can't connect to node 192.168.57.3:7001”的错误。

解决=>修改ruby目录中的文件：/data/soft/ruby/lib/ruby/gems/2.4.0/gems/redis-4.0.2/lib/redis/client.rb

......

class Redis

  class Client

    DEFAULTS = {

      :url => lambda { ENV["REDIS_URL"] },

      :scheme => "redis",

      :host => "127.0.0.1",

      :port => 6379,

      :path => nil,

      :timeout => 5.0,

      :password => “redis配置中的实际密码”,

      :db => 0,

      :driver => nil,

      :id => nil,

      :tcp_keepalive => 0,

      :reconnect_attempts => 1,

      :inherit_socket => false

}

......

然后，重新执行创建集群,yes,等待完成。

#redis-trib.rb create --replicas 1 192.168.57.3:7001 192.168.57.3:7002 192.168.57.3:7003 192.168.57.2:7004 192.168.57.2:7005 192.168.57.2:7006

//集群完整性检查（任一节点）

# redis-trib.rb check 127.0.0.1:8001

# redis-trib.rb check 127.0.0.1:8002

...

附录图片：

redis-trib.rb创建集群分配master.png