redis3.0.0 集群安装详细步骤

Redis集群部署文档(centos6系统)

Redis集群部署文档(centos6系统)

（要让集群正常工作至少需要3个主节点，在这里我们要创建6个redis节点，其中三个为主节点，三个为从节点，对应的redis节点的ip和端口对应关系如下）

127.0.0.1:7000

127.0.0.1:7001

127.0.0.1:7002

127.0.0.1:7003

127.0.0.1:7004

127.0.0.1:7005

1：下载redis。官网下载3.0.0版本，之前2.几的版本不支持集群模式

下载地址：https://github.com/antirez/redis/archive/3.0.0-rc2.tar.gz

2：上传服务器，解压，编译

tar -zxvf redis-3.0.0-rc2.tar.gz 

mv redis-3.0.0-rc2.tar.gz redis3.0

cd /usr/local/redis3.0

make

make install

3：创建集群需要的目录

mkdir -p /usr.local/cluster

cd /usr.local/cluster

mkdir 7000

mkdir 7001

mkdir 7002

mkdir 7003

mkdir 7004

mkdir 7005

4：修改配置文件redis.conf

cp /usr/local/redis3.0/redis.conf  /usr.local/cluster

vi redis.conf

##修改配置文件中的下面选项

port 7000

daemonize yes

cluster-enabled yes

cluster-config-file nodes.conf

cluster-node-timeout 5000

appendonly yes

##修改完redis.conf配置文件中的这些配置项之后把这个配置文件分别拷贝到7000/7001/7002/7003/7004/7005目录下面

cp /usr/local/cluster/redis.conf /usr/local/cluster/7000

cp /usr/local/cluster/redis.conf /usr/local/cluster/7001

cp /usr/local/cluster/redis.conf /usr/local/cluster/7002

cp /usr/local/cluster/redis.conf /usr/local/cluster/7003

cp /usr/local/cluster/redis.conf /usr/local/cluster/7004

cp /usr/local/cluster/redis.conf /usr/local/cluster/7005

##注意：拷贝完成之后要修改7001/7002/7003/7004/7005目录下面redis.conf文件中的port参数，分别改为对应的文件夹的名称

5：分别启动这6个redis实例

cd /usr/local/cluster/7000

redis-server redis.conf

cd /usr/local/cluster/7001

redis-server redis.conf

cd /usr/local/cluster/7002

redis-server redis.conf

cd /usr/local/cluster/7003

redis-server redis.conf

cd /usr/local/cluster/7004

redis-server redis.conf

cd /usr/local/cluster/7005

redis-server redis.conf

##启动之后使用命令查看redis的启动情况ps -ef|grep redis

如下图显示则说明启动成功

6：执行redis的创建集群命令创建集群

cd /usr/local/redis3.0/src

./redis-trib.rb  create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005

6.1执行上面的命令的时候会报错，因为是执行的ruby的脚本，需要ruby的环境

错误内容：/usr/bin/env: ruby: No such file or directory

所以需要安装ruby的环境，这里推荐使用yum install ruby安装

yum install ruby

6.2然后再执行第6步的创建集群命令，还会报错，提示缺少rubygems组件，使用yum安装

错误内容：

./redis-trib.rb:24:in `require': no such file to load -- rubygems (LoadError)

from ./redis-trib.rb:24

yum install rubygems

6.3再次执行第6步的命令，还会报错，提示不能加载redis，是因为缺少redis和ruby的接口，使用gem 安装

错误内容：

/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- redis (LoadError)

from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'

from ./redis-trib.rb:25

gem install redis

6.4 再次执行第6步的命令，正常执行

输入yes，然后配置完成。

至此redis集群即搭建成功！

7：使用redis-cli命令进入集群环境

redis-cli -c -p 7000

##修改完redis.conf配置文件中的这些配置项之后把这个配置文件分别拷贝到7000/7001/7002/7003/7004/7005目录下面 
cp /usr/local/cluster/redis.conf /usr/local/cluster/7000 
cp /usr/local/cluster/redis.conf /usr/local/cluster/7001 
cp /usr/local/cluster/redis.conf /usr/local/cluster/7002 
cp /usr/local/cluster/redis.conf /usr/local/cluster/7003 
cp /usr/local/cluster/redis.conf /usr/local/cluster/7004 
cp /usr/local/cluster/redis.conf /usr/local/cluster/7005 
##注意：拷贝完成之后要修改7001/7002/7003/7004/7005目录下面redis.conf文件中的port参数，分别改为对应的文件夹的名称 

5：分别启动这6个redis实例 cd /usr/local/cluster/7000 redis-server redis.conf cd /usr/local/cluster/7001 redis-server redis.conf cd /usr/local/cluster/7002 redis-server redis.conf cd /usr/local/cluster/7003 redis-server redis.conf cd /usr/local/cluster/7004 redis-server redis.conf cd /usr/local/cluster/7005 redis-server redis.conf ##启动之后使用命令查看redis的启动情况ps -ef|grep redis 如下图显示则说明启动成功 6：执行redis的创建集群命令创建集群 cd /usr/local/redis3.0/src ./redis-trib.rb create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005 6.1执行上面的命令的时候会报错，因为是执行的ruby的脚本，需要ruby的环境 错误内容：/usr/bin/env: ruby: No such file or directory 所以需要安装ruby的环境，这里推荐使用yum install ruby安装 yum install ruby 6.2然后再执行第6步的创建集群命令，还会报错，提示缺少rubygems组件，使用yum安装 错误内容： ./redis-trib.rb:24:in `require': no such file to load -- rubygems (LoadError) from ./redis-trib.rb:24 yum install rubygems 6.3再次执行第6步的命令，还会报错，提示不能加载redis，是因为缺少redis和ruby的接口，使用gem 安装 错误内容： /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- redis (LoadError) from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from ./redis-trib.rb:25 gem install redis 

6.4 再次执行第6步的命令，正常执行

输入yes，然后配置完成。

至此redis集群即搭建成功！
7：使用redis-cli命令进入集群环境
redis-cli -c -p 7000

本文出自 “智能化未来_XFICC” 博客，请务必保留此出处http://xficc.blog.51cto.com/1189288/1707366

准备了3台机器，每台机器上面起7000 和7001端口

http://download.redis.io/releases/redis-3.0.2.tar.gz

解压后到包里面

make

make install 安装就好了

创建集群需要的目录

 mkdir /usr/local/redis/7000 -p

mkdir /usr/local/redis/7001 -p

修改配置文件redis.conf

cd /usr/local/redis/7000/

    vim redis.conf

port 7000

daemonize yes

cluster-enabled yes

cluster-config-file nodes.conf

cluster-node-timeout 5000

appendonly yes

##修改完redis.conf配置文件中的这些配置项之后把这个配置文件分别拷贝到7001 和另外2台机器上

##注意：拷贝完成之后端口要修改7001

分别启动这6个redis实例

这样每台机器上面启动2个实例

/usr/local/redis/7000/redis-server /usr/local/redis/7000/redis.conf 

/usr/local/redis/7001/redis-server /usr/local/redis/7001/redis.conf 

##启动之后使用命令查看redis的启动情况ps -ef|grep redis

6：执行redis的创建集群命令创建集群

6:09:33] PWD => /usr/local

40># ~/redis-3.0.2/src/redis-trib.rb create --replicas 192.168.7.232:7000 192.168.7.239:7000 192.168.7.246:7000 192.168.7.232:7001 192.168.7.239:7001 192.168.7.246:7001

/root/redis-3.0.2/src/redis-trib.rb:24:in `require': no such file to load -- rubygems (LoadError)

        from /root/redis-3.0.2/src/redis-trib.rb:24

报错了，提示缺少rubygems组件，使用yum安装

yum -y install rubygems

安装好后还是报错

/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- redis (LoadError)

        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'

        from /root/redis-3.0.2/src/redis-trib.rb:25

提示不能加载redis，是因为缺少redis和ruby的接口，使用gem 安装

# gem install redis

# ~/redis-3.0.2/src/redis-trib.rb create --replicas 192.168.7.232:7000 192.168.7.237:7000 192.168.7.246:7000 192.168.7.232:7001 192.168.7.237:7001 192.168.7.246:7001

>>> Creating cluster

Connecting to node 192.168.7.237:7000: OK

Connecting to node 192.168.7.246:7000: OK

Connecting to node 192.168.7.232:7001: OK

Connecting to node 192.168.7.237:7001: OK

Connecting to node 192.168.7.246:7001: OK

*** ERROR: Invalid configuration for cluster creation.

*** Redis Cluster requires at least 3 master nodes.

*** This is not possible with 5 nodes and 192 replicas per node.

*** At least 579 nodes are required.

居然只连接5个，奇怪了，后来检查才发现在--replicas 后面要加一个数字才可以

6:23:23] PWD => /usr/local

52># ~/redis-3.0.2/src/redis-trib.rb create --replicas 1 192.168.7.232:7000 192.168.7.237:7000 192.168.7.246:7000 192.168.7.232:7001 192.168.7.237:7001 192.168.7.246:7001

>>> Creating cluster

Connecting to node 192.168.7.232:7000: OK

Connecting to node 192.168.7.237:7000: OK

Connecting to node 192.168.7.246:7000: OK

Connecting to node 192.168.7.232:7001: OK

Connecting to node 192.168.7.237:7001: OK

Connecting to node 192.168.7.246:7001: OK

>>> Performing hash slots allocation on 6 nodes...

Using 3 masters:

192.168.7.246:7000

192.168.7.237:7000

192.168.7.232:7000

Adding replica 192.168.7.237:7001 to 192.168.7.246:7000

Adding replica 192.168.7.246:7001 to 192.168.7.237:7000

Adding replica 192.168.7.232:7001 to 192.168.7.232:7000

M: e538aeff6aa194f52c706238448a3f48c561174c 192.168.7.232:7000

   slots:10923-16383 (5461 slots) master

M: 834632a4e4f2af3a824623928b4b85203cd2df11 192.168.7.237:7000

   slots:5461-10922 (5462 slots) master

M: e538aeff6aa194f52c706238448a3f48c561174c 192.168.7.246:7000

   slots:0-5460 (5461 slots) master

S: 2aabb6d31a8c4310aedbe98b43d8ae1725265eac 192.168.7.232:7001

   replicates e538aeff6aa194f52c706238448a3f48c561174c

S: 80ad1ce65e5d1ab60eef58cf3d8e001cc0cbc11d 192.168.7.237:7001

   replicates e538aeff6aa194f52c706238448a3f48c561174c

S: 4c37e13f1339db30699586e8d6a38f2778606908 192.168.7.246:7001

   replicates 834632a4e4f2af3a824623928b4b85203cd2df11

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.......................................

在这里的时候卡了很久没过去，我就结束了想重新再试下

Connecting to node 192.168.7.232:7000: OK

[ERR] Node 192.168.7.232:7000 is not empty. Either the node already knows other nodes (check with CLUSTER NODES) or contains some key in database 0.

提示有数据了，我想是开始初始化的时候有写数据进去了

把7000目录下生成的appendonly.aof    nodes.conf 删除掉重启启动服务，

想起来我是把7.232上面的服务启动后把7000 7001 直接传到237 和246上面去的，为了节省建目录和copy配置文件的操作，这样导致机器加入集群的时候一直在等待，

把3台机器的6个服务的appendonly.aof    nodes.conf都删了 重新启动服务再执行

# ~/redis-3.0.2/src/redis-trib.rb create --replicas 1 192.168.7.232:7000 192.168.7.237:7000 192.168.7.246:7000 192.168.7.232:7001 192.168.7.237:7001 192.168.7.246:7001 

>>> Creating cluster

Connecting to node 192.168.7.232:7000: OK

Connecting to node 192.168.7.237:7000: OK

Connecting to node 192.168.7.246:7000: OK

Connecting to node 192.168.7.232:7001: OK

Connecting to node 192.168.7.237:7001: OK

Connecting to node 192.168.7.246:7001: OK

>>> Performing hash slots allocation on 6 nodes...

Using 3 masters:

192.168.7.246:7000

192.168.7.237:7000

192.168.7.232:7000

Adding replica 192.168.7.237:7001 to 192.168.7.246:7000

Adding replica 192.168.7.246:7001 to 192.168.7.237:7000

Adding replica 192.168.7.232:7001 to 192.168.7.232:7000

M: d8003ec51e97f8135b55e6c318e1bcf7b940e668 192.168.7.232:7000

   slots:10923-16383 (5461 slots) master

M: 594a3e1a587c4fb67fc224f0593993918c0360af 192.168.7.237:7000

   slots:5461-10922 (5462 slots) master

M: 9ebe5263d08594bfd5d218a36df8315c5ce3f0dd 192.168.7.246:7000

   slots:0-5460 (5461 slots) master

S: 1d716af8951061e412fcc0b6e92e4212a8730000 192.168.7.232:7001

   replicates d8003ec51e97f8135b55e6c318e1bcf7b940e668

S: 30882cbdf6ab715aea7928e0adf25b96fc67aa87 192.168.7.237:7001

   replicates 9ebe5263d08594bfd5d218a36df8315c5ce3f0dd

S: 4754be547328d05b986bf94fe9d77a4cd32b1f68 192.168.7.246:7001

   replicates 594a3e1a587c4fb67fc224f0593993918c0360af

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 192.168.7.232:7000)

M: d8003ec51e97f8135b55e6c318e1bcf7b940e668 192.168.7.232:7000

   slots:10923-16383 (5461 slots) master

M: 594a3e1a587c4fb67fc224f0593993918c0360af 192.168.7.237:7000

   slots:5461-10922 (5462 slots) master

M: 9ebe5263d08594bfd5d218a36df8315c5ce3f0dd 192.168.7.246:7000

   slots:0-5460 (5461 slots) master

   slots:0-5460 (5461 slots) master

M: 1d716af8951061e412fcc0b6e92e4212a8730000 192.168.7.232:7001

   slots: (0 slots) master

   replicates d8003ec51e97f8135b55e6c318e1bcf7b940e668

M: 30882cbdf6ab715aea7928e0adf25b96fc67aa87 192.168.7.237:7001

   slots: (0 slots) master

   replicates 9ebe5263d08594bfd5d218a36df8315c5ce3f0dd

M: 4754be547328d05b986bf94fe9d77a4cd32b1f68 192.168.7.246:7001

   slots: (0 slots) master

   replicates 594a3e1a587c4fb67fc224f0593993918c0360af

[OK] All nodes agree about slots configuration.

>>> Check for open slots...

>>> Check slots coverage...

[OK] All 16384 slots covered.

使用redis-cli命令进入集群环境

redis-cli -c -p 7000

127.0.0.1:7000> get testkey001

(nil)

127.0.0.1:7000> set testkey002 testvalue002

-> Redirected to slot [401] located at 192.168.7.246:7000

OK

192.168.7.246:7000> get testkey002

"testvalue002"

192.168.7.246:7000> set testkey003 testvalue003

OK

192.168.7.246:7000> exit