Redis Cluster的搭建(3.0.3)单机和双机

知识的价值不在于占有,而在于使用。这篇文章主要讲述Redis Cluster的搭建(3.0.3)单机和双机相关的知识,希望能为你提供帮助。
转发自我自己的新浪博客:??http://blog.sina.com.cn/s/blog_4fa20e8c0102vv2z.html??
Redis Cluster的安装和配置
Centos6.5-64位minimal版
yum -y install gcc gcc-c++
redis3.0.3稳定版
1,下载后解压安装
make后报错zmalloc.h:50:31: error: jemalloc/jemalloc.h: No such file or directory
那么就执行
sudo make MALLOC=libc
sudo yum -y install rubygems
sudo gem install redis
后来再redis/src/找到redis-trib.rb,把它copy出来到redis目录下
在/usr/local下创建redis6379-redis6384这6个目录
只把redis.conf复制进去
其中更改
daemonize yes
port 6379 #不同目录,这里端口对应不同
cluster-enabled yes #开启集群功能
cluster-config-file nodes-6379.conf #节点配置文件改成相对应的,方便区分,这个文件是服务启动时自己配置创建的
cluster-node-timeout 5000
appendonly yes
2,然后各个启动
如6379端口
sudo /usr/local/bin/redis-server /usr/local/redis6379/redis.conf
3,cd /usr/local
sudo ./redis/redis-trib.rb create --replicas 1 192.168.1.25:6379 192.168.1.25:6380 192.168.1.25:6381 192.168.1.25:6382 192.168.1.25:6383 192.168.1.25:6384
以上命令各个是一主一从
如果不要从节点就把1改为0
sudo ./redis-trib.rb check 192.168.1.25:6379
在创建集群里redis会自动执行这样的检测,当然你也可以自己运行这个check,端口(节点)也是任一其中一个
结果
Connecting to node 192.168.1.25:6382: OK
Connecting to node 192.168.1.25:6383: OK
Connecting to node 192.168.1.25:6381: OK
Connecting to node 192.168.1.25:6384: OK
Connecting to node 192.168.1.25:6379: OK
Connecting to node 192.168.1.25:6380: OK
> > > Performing Cluster Check (using node 192.168.1.25:6382)
S: a5d5cc17b2d8ec750f8ded14f65dc81cc66c5746 192.168.1.25:6382
    slots: (0 slots) slave
    replicates 08e6d391504848ba7f6cf2e9f072795f5aa82217
S: f229c055e1b91267c2e6d56b5beb0bc53651abdb 192.168.1.25:6383
    slots: (0 slots) slave
    replicates 63d6c99314fd126dc93954e75d12ff9225f5ddc9
M: 9550183cb43e9bd094650b7df7be8cc1f605b521 192.168.1.25:6381
    slots:10923-16383 (5461 slots) master
    1 additional replica(s)
S: 2cbe081d89607b4dbdcd054d9ffd9cd59291883d 192.168.1.25:6384
    slots: (0 slots) slave
    replicates 9550183cb43e9bd094650b7df7be8cc1f605b521
M: 08e6d391504848ba7f6cf2e9f072795f5aa82217 192.168.1.25:6379
    slots:0-5460 (5461 slots) master
    1 additional replica(s)
M: 63d6c99314fd126dc93954e75d12ff9225f5ddc9 192.168.1.25:6380
    slots:5461-10922 (5462 slots) master
    1 additional replica(s)
[OK] All nodes agree about slots configuration.
> > > Check for open slots...
> > > Check slots coverage...
[OK] All 16384 slots covered.
4,#查看集群节点的相关信息
redis-cli -p 6379 -h 192.168.1.25 cluster nodes
63d6c99314fd126dc93954e75d12ff9225f5ddc9 192.168.1.25:6380 master - 0 1440649609665 2 connected 5461-10922
9550183cb43e9bd094650b7df7be8cc1f605b521 192.168.1.25:6381 master - 0 1440649608663 3 connected 10923-16383
f229c055e1b91267c2e6d56b5beb0bc53651abdb 192.168.1.25:6383 slave 63d6c99314fd126dc93954e75d12ff9225f5ddc9 0 1440649608162 5 connected
a5d5cc17b2d8ec750f8ded14f65dc81cc66c5746 192.168.1.25:6382 slave 08e6d391504848ba7f6cf2e9f072795f5aa82217 0 1440649609164 4 connected
08e6d391504848ba7f6cf2e9f072795f5aa82217 192.168.1.25:6379 myself,master - 0 0 1 connected 0-5460
2cbe081d89607b4dbdcd054d9ffd9cd59291883d 192.168.1.25:6384 slave 9550183cb43e9bd094650b7df7be8cc1f605b521 0 1440649607662 6 connected
5,#官方文档里列表参数的说明:
* Node ID
* ip:port
* flags: master, slave, myself, fail, ...
* if it is a slave, the Node ID of the master
* Time of the last pending PING still waiting for a reply.
* Time of the last PONG received.
* Configuration epoch for this node (see the Cluster specification).
* Status of the link to this node.
【Redis Cluster的搭建(3.0.3)单机和双机】* Slots served...
./redis-trib.rb check 192.168.1.25:6379
6,#在创建集群里redis会自动执行这样的检测,当然你也可以自己运行这个check,端口(节点)也是任一其中一个
Connecting to node 192.168.1.25:6382: OK
Connecting to node 192.168.1.25:6383: OK
Connecting to node 192.168.1.25:6381: OK
Connecting to node 192.168.1.25:6384: OK
Connecting to node 192.168.1.25:6379: OK
Connecting to node 192.168.1.25:6380: OK
> > > Performing Cluster Check (using node 192.168.1.25:6382)
S: a5d5cc17b2d8ec750f8ded14f65dc81cc66c5746 192.168.1.25:6382
    slots: (0 slots) slave
    replicates 08e6d391504848ba7f6cf2e9f072795f5aa82217
S: f229c055e1b91267c2e6d56b5beb0bc53651abdb 192.168.1.25:6383
    slots: (0 slots) slave
    replicates 63d6c99314fd126dc93954e75d12ff9225f5ddc9
M: 9550183cb43e9bd094650b7df7be8cc1f605b521 192.168.1.25:6381
    slots:10923-16383 (5461 slots) master
    1 additional replica(s)
S: 2cbe081d89607b4dbdcd054d9ffd9cd59291883d 192.168.1.25:6384
    slots: (0 slots) slave
    replicates 9550183cb43e9bd094650b7df7be8cc1f605b521
M: 08e6d391504848ba7f6cf2e9f072795f5aa82217 192.168.1.25:6379
    slots:0-5460 (5461 slots) master
    1 additional replica(s)
M: 63d6c99314fd126dc93954e75d12ff9225f5ddc9 192.168.1.25:6380
    slots:5461-10922 (5462 slots) master
    1 additional replica(s)
[OK] All nodes agree about slots configuration.
> > > Check for open slots...
> > > Check slots coverage...
[OK] All 16384 slots covered.
7,以下除了测试部分,并没有亲测
#添加节点的测试,需求:把6382这个节点作为slave添加到6379这个master节点上
#命令如下:(两个命令都可行)
./redis-trib.rb add-node --slave 192.168.1.25:6382 192.168.1.25:6379
./redis-trib.rb add-node --slave master-id 5dfa7d9f2dbb4ab64b71f2713538125354c88462 192.168.1.25:6382 192.168.1.25:6379
---------------------------------------------------------------------------------------
#检测集群节点相关信息
redis-cli -p 6379 -h 192.168.1.25 cluster nodes
---------------------------------------------------------------------------------------
c31fb6f027db72876cb36e606b93817736e0ce81 192.168.1.25:6382 slave 5dfa7d9f2dbb4ab64b71f2713538125354c88462 0 1416901290565 1 connected
47b1c1df820ff5e9057a526f69e9fe4fdd9800e9 192.168.1.25:6381 master - 0 1416901293638 3 connected 10923-16383
c97f77ebcba3f48b9da07329b0e4e2943ded88c9 192.168.1.25:6380 master - 0 1416901291590 2 connected 5461-10922
5dfa7d9f2dbb4ab64b71f2713538125354c88462 192.168.1.25:6379 myself,master - 0 0 1 connected 0-5460
#根据官方文档列表参数说明的第4行说明
#5dfa7d9f2dbb4ab64b71f2713538125354c88462就是master的NodeID
#那么我们再看6379节点的NodeID正好也是5dfa7d9f2dbb4ab64b71f2713538125354c88462
#如果需要改变主从关系,比如将6383这个服务节点从master(6380)转变成master(6379),那么如下
redis-cli -p 6383 -h 192.168.1.25
192.168.1.25:6383> cluster replicate 5dfa7d9f2dbb4ab64b71f2713538125354c88462
#5dfa7d9f2dbb4ab64b71f2713538125354c88462是master(6379)的NodeID
8,测试
redis-cli -c -p 6379 -h 192.168.1.25
set fool bar
以下会有提示
--> Redirected to slot [12182] located at 192.168.1.25:6381
ok
然后可以用get fool在其他的端口下登录验证
-> Redirected to slot [12182] located at 42.62.4.83:6381
"bar"
至此已经完成
借鉴自??http://www.oschina.net/code/snippet_1046345_44151??


二,如果是在两个主机上cluster,那么另外的主机也要装gcc、gcc-c++、ruby、gem redis、redis。
其他的配置是一样的,但是端口不要一致,比如A主机用的6379-6381,那么B主机就用6382-6384。
防火墙都要相应的开放6379-6384、16379-16384(集群发送和接收消息端口)。
在25一台机子上执行即可
sudo ./redis/redis-trib.rb create --replicas 1 192.168.1.25:6379 192.168.1.25:6380 192.168.1.25:6381 192.168.1.26:6382 192.168.1.26:6383 192.168.1.26:6384
如果报错比如[ERR] Not all 16384 slots are covered by nodes. (官方推荐redis-trib.rb fix 192.268.1.25:6379来修复,但是我试了不起作用)
尝试把cluster-config-file指向的文件都删掉,启动redis进程,再执行重建,如果依然不行,就把dump.rdp、appendonly.aof文件也删掉,启动redis再执行重建。





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