redis cluster 集群 安装 配置 详解

张映 发表于 2015-05-01

分类目录： nosql

标签：cluster, redis, 安装, 配置, 集群

Redis 集群是一个提供在多个Redis间节点间共享数据的程序集.redis3.0以前，只支持主从同步的，如果主的挂了，写入就成问题了。3.0出来后就可以很好帮我们解决这个问题。

目前redis 3.0还不稳定，如果要用在生产环境中，要慎重。

一，redis服务器说明

  1. 192.168.10.219 6379
  2. 192.168.10.219 6380
  3. 192.168.10.219 6381
  4. 192.168.10.220 6382
  5. 192.168.10.220 6383
  6. 192.168.10.220 6384
192.168.10.219 6379

192.168.10.219 6380

192.168.10.219 6381

192.168.10.220 6382

192.168.10.220 6383

192.168.10.220 6384

要让集群正常运作至少需要三个主节点，不过在刚开始试用集群功能时， 强烈建议使用六个节点： 其中三个为主节点， 而其余三个则是各个主节点的从节点。所有用二台机器，开6个redis进程，模拟6台机器。

二，安装ruby,rubygems

  1. # yum -y install gcc openssl-devel libyaml-devel libffi-devel readline-devel zlib-devel gdbm-devel ncurses-devel gcc-c++ automake autoconf
  2. # yum -y install ruby rubygems   //安装ruby rubygems
  3. //换源
  4. # gem source -l
  5. # gem source --remove http://rubygems.org/
  6. # gem sources -a http://ruby.taobao.org/
  7. # gem source -l
  8. # gem install redis --version 3.0.0  //安装gem_redis
  9. Successfully installed redis-3.0.0
  10. 1 gem installed
  11. Installing ri documentation for redis-3.0.0...
  12. Installing RDoc documentation for redis-3.0.0...
# yum -y install gcc openssl-devel libyaml-devel libffi-devel readline-devel zlib-devel gdbm-devel ncurses-devel gcc-c++ automake autoconf

# yum -y install ruby rubygems   //安装ruby rubygems

//换源

# gem source -l

# gem source --remove http://rubygems.org/

# gem sources -a http://ruby.taobao.org/

# gem source -l

# gem install redis --version 3.0.0  //安装gem_redis

Successfully installed redis-3.0.0

1 gem installed

Installing ri documentation for redis-3.0.0...

Installing RDoc documentation for redis-3.0.0...

以前写过一篇ruby on rails的文章，请参考：centos ruby on rails apache mysql 安装配置详解

喜欢手动编译的人，可以参考这篇文章，安装ruby.

三，安装redis3.0.0

1，安装redis

  1. # wget http://download.redis.io/releases/redis-3.0.0.tar.gz
  2. # tar -xvzf redis-3.0.0.tar.gz
  3. # cd redis-3.0.0
  4. # make && make install
  5. # cd src
  6. # cp redis-trib.rb /usr/local/bin
  7. # mkdir /etc/redis
  8. # mkdir /var/log/redis
# wget http://download.redis.io/releases/redis-3.0.0.tar.gz

# tar -xvzf redis-3.0.0.tar.gz

# cd redis-3.0.0

# make && make install

# cd src

# cp redis-trib.rb /usr/local/bin  

# mkdir /etc/redis

# mkdir /var/log/redis

上述操作要先在二台机器上面都操作好。

2,配置redis

  1. [root@slave2 redis-3.0.0]#  vim redis.conf   //解压的根目录，有redis.conf,做以下修改
  2. port 6379
  3. pidfile /var/run/redis-6379.pid
  4. dbfilename dump-6379.rdb
  5. appendfilename "appendonly-6379.aof"
  6. cluster-config-file nodes-6379.conf
  7. cluster-enabled yes
  8. cluster-node-timeout 5000
  9. appendonly yes
[root@slave2 redis-3.0.0]#  vim redis.conf   //解压的根目录，有redis.conf,做以下修改

port 6379

pidfile /var/run/redis-6379.pid

dbfilename dump-6379.rdb

appendfilename "appendonly-6379.aof"

cluster-config-file nodes-6379.conf

cluster-enabled yes

cluster-node-timeout 5000

appendonly yes

3，copy配置文件，并修改端口

  1. # cp redis.conf /etc/redis/redis-6379.conf
  2. # cp redis.conf /etc/redis/redis-6380.conf
  3. # cp redis.conf /etc/redis/redis-6381.conf
  4. # scp redis.conf 192.168.10.220:/etc/redis/redis-6382.conf
  5. # scp redis.conf 192.168.10.220:/etc/redis/redis-6383.conf
  6. # scp redis.conf 192.168.10.220:/etc/redis/redis-6384.conf
  7. # sed -i "s/6379/6380/g" /etc/redis/redis-6380.conf
  8. # sed -i "s/6379/6381/g" /etc/redis/redis-6381.conf
  9. # sed -i "s/6379/6382/g" /etc/redis/redis-6382.conf
  10. # sed -i "s/6379/6383/g" /etc/redis/redis-6383.conf
  11. # sed -i "s/6379/6384/g" /etc/redis/redis-6384.conf
# cp redis.conf /etc/redis/redis-6379.conf

# cp redis.conf /etc/redis/redis-6380.conf

# cp redis.conf /etc/redis/redis-6381.conf

# scp redis.conf 192.168.10.220:/etc/redis/redis-6382.conf

# scp redis.conf 192.168.10.220:/etc/redis/redis-6383.conf

# scp redis.conf 192.168.10.220:/etc/redis/redis-6384.conf

# sed -i "s/6379/6380/g" /etc/redis/redis-6380.conf

# sed -i "s/6379/6381/g" /etc/redis/redis-6381.conf

# sed -i "s/6379/6382/g" /etc/redis/redis-6382.conf

# sed -i "s/6379/6383/g" /etc/redis/redis-6383.conf

# sed -i "s/6379/6384/g" /etc/redis/redis-6384.conf

将配置文件分别copy到二台机器上，并替换端口：

  1. # cat redis-6380.conf |awk '{if($0 !~ /^$/ && $0 !~ /#/) {print $0}}' |grep 6380
  2. pidfile /var/run/redis-6380.pid
  3. port 6380
  4. dbfilename dump-6380.rdb
  5. appendfilename "appendonly-6380.aof"
  6. cluster-config-file nodes-6380.conf
# cat redis-6380.conf |awk '{if($0 !~ /^$/ && $0 !~ /#/) {print $0}}' |grep 6380

pidfile /var/run/redis-6380.pid

port 6380

dbfilename dump-6380.rdb

appendfilename "appendonly-6380.aof"

cluster-config-file nodes-6380.conf

有5处修改端口的地方

4，启动并查看redis

  1. # redis-server /etc/redis/redis-6379.conf > /var/log/redis/redis-6379.log 2>&1 &
  2. # redis-server /etc/redis/redis-6380.conf > /var/log/redis/redis-6380.log 2>&1 &
  3. # redis-server /etc/redis/redis-6381.conf > /var/log/redis/redis-6381.log 2>&1 &
  4. # redis-server /etc/redis/redis-6382.conf > /var/log/redis/redis-6382.log 2>&1 &
  5. # redis-server /etc/redis/redis-6383.conf > /var/log/redis/redis-6383.log 2>&1 &
  6. # redis-server /etc/redis/redis-6384.conf > /var/log/redis/redis-6384.log 2>&1 &
  7. # netstat -tpnl |grep redis
  8. tcp        0      0 0.0.0.0:6379                0.0.0.0:*                   LISTEN      7298/redis-server *
  9. tcp        0      0 0.0.0.0:6380                0.0.0.0:*                   LISTEN      7299/redis-server *
  10. tcp        0      0 0.0.0.0:6381                0.0.0.0:*                   LISTEN      7304/redis-server *
  11. tcp        0      0 0.0.0.0:16379               0.0.0.0:*                   LISTEN      7298/redis-server *
  12. tcp        0      0 0.0.0.0:16380               0.0.0.0:*                   LISTEN      7299/redis-server *
  13. tcp        0      0 0.0.0.0:16381               0.0.0.0:*                   LISTEN      7304/redis-server *
  14. tcp        0      0 :::6379                     :::*                        LISTEN      7298/redis-server *
  15. tcp        0      0 :::6380                     :::*                        LISTEN      7299/redis-server *
  16. tcp        0      0 :::6381                     :::*                        LISTEN      7304/redis-server *
  17. tcp        0      0 :::16379                    :::*                        LISTEN      7298/redis-server *
  18. tcp        0      0 :::16380                    :::*                        LISTEN      7299/redis-server *
  19. tcp        0      0 :::16381                    :::*                        LISTEN      7304/redis-server *
  20. [root@slave2 redis]# ll /etc/redis/
  21. 总用量 156
  22. -rw-r--r-- 1 root root     0 4月  30 23:54 appendonly-6379.aof
  23. -rw-r--r-- 1 root root     0 5月   1 00:08 appendonly-6380.aof
  24. -rw-r--r-- 1 root root     0 5月   1 00:08 appendonly-6381.aof
  25. -rw-r--r-- 1 root root    18 5月   1 00:08 dump-6379.rdb
  26. -rw-r--r-- 1 root root    18 5月   1 00:08 dump-6380.rdb
  27. -rw-r--r-- 1 root root    18 5月   1 00:08 dump-6381.rdb
  28. -rw-r--r-- 1 root root   763 5月   1 00:08 nodes-6379.conf
  29. -rw-r--r-- 1 root root   763 5月   1 00:08 nodes-6380.conf
  30. -rw-r--r-- 1 root root   763 5月   1 00:08 nodes-6381.conf
  31. -rw-r--r-- 1 root root 41412 4月  30 23:30 redis-6379.conf
  32. -rw-r--r-- 1 root root 41412 4月  30 23:39 redis-6380.conf
  33. -rw-r--r-- 1 root root 41412 4月  30 23:39 redis-6381.conf
# redis-server /etc/redis/redis-6379.conf > /var/log/redis/redis-6379.log 2>&1 &

# redis-server /etc/redis/redis-6380.conf > /var/log/redis/redis-6380.log 2>&1 &

# redis-server /etc/redis/redis-6381.conf > /var/log/redis/redis-6381.log 2>&1 &

# redis-server /etc/redis/redis-6382.conf > /var/log/redis/redis-6382.log 2>&1 &

# redis-server /etc/redis/redis-6383.conf > /var/log/redis/redis-6383.log 2>&1 &

# redis-server /etc/redis/redis-6384.conf > /var/log/redis/redis-6384.log 2>&1 &

# netstat -tpnl |grep redis

tcp        0      0 0.0.0.0:6379                0.0.0.0:*                   LISTEN      7298/redis-server *

tcp        0      0 0.0.0.0:6380                0.0.0.0:*                   LISTEN      7299/redis-server *

tcp        0      0 0.0.0.0:6381                0.0.0.0:*                   LISTEN      7304/redis-server *

tcp        0      0 0.0.0.0:16379               0.0.0.0:*                   LISTEN      7298/redis-server *

tcp        0      0 0.0.0.0:16380               0.0.0.0:*                   LISTEN      7299/redis-server *

tcp        0      0 0.0.0.0:16381               0.0.0.0:*                   LISTEN      7304/redis-server *

tcp        0      0 :::6379                     :::*                        LISTEN      7298/redis-server *

tcp        0      0 :::6380                     :::*                        LISTEN      7299/redis-server *

tcp        0      0 :::6381                     :::*                        LISTEN      7304/redis-server *

tcp        0      0 :::16379                    :::*                        LISTEN      7298/redis-server *

tcp        0      0 :::16380                    :::*                        LISTEN      7299/redis-server *

tcp        0      0 :::16381                    :::*                        LISTEN      7304/redis-server *

[root@slave2 redis]# ll /etc/redis/

总用量 156

-rw-r--r-- 1 root root     0 4月  30 23:54 appendonly-6379.aof

-rw-r--r-- 1 root root     0 5月   1 00:08 appendonly-6380.aof

-rw-r--r-- 1 root root     0 5月   1 00:08 appendonly-6381.aof

-rw-r--r-- 1 root root    18 5月   1 00:08 dump-6379.rdb

-rw-r--r-- 1 root root    18 5月   1 00:08 dump-6380.rdb

-rw-r--r-- 1 root root    18 5月   1 00:08 dump-6381.rdb

-rw-r--r-- 1 root root   763 5月   1 00:08 nodes-6379.conf

-rw-r--r-- 1 root root   763 5月   1 00:08 nodes-6380.conf

-rw-r--r-- 1 root root   763 5月   1 00:08 nodes-6381.conf

-rw-r--r-- 1 root root 41412 4月  30 23:30 redis-6379.conf

-rw-r--r-- 1 root root 41412 4月  30 23:39 redis-6380.conf

-rw-r--r-- 1 root root 41412 4月  30 23:39 redis-6381.conf

所有节点都启动成功，并不代表，他们就是集群了。

四，创建集群，并查看

1，创建redis集群

  1. # redis-trib.rb create --replicas 1 192.168.10.219:6379 192.168.10.219:6380 192.168.10.219:6381 192.168.10.220:6382 192.168.10.220:6383 192.168.10.220:6384
# redis-trib.rb create --replicas 1 192.168.10.219:6379 192.168.10.219:6380 192.168.10.219:6381 192.168.10.220:6382 192.168.10.220:6383 192.168.10.220:6384

2，查看redis集群状态

  1. [root@slave2 redis]# redis-trib.rb check 192.168.10.219:6379
  2. Connecting to node 192.168.10.219:6379: OK
  3. Connecting to node 192.168.10.220:6384: OK
  4. Connecting to node 192.168.10.219:6381: OK
  5. Connecting to node 192.168.10.220:6383: OK
  6. Connecting to node 192.168.10.220:6382: OK
  7. Connecting to node 192.168.10.219:6380: OK
  8. >>> Performing Cluster Check (using node 192.168.10.219:6379)
  9. M: d40d9a367c24784b0336c7b80fb4c87337e2cba6 192.168.10.219:6379
  10. slots:5461-10922 (5462 slots) master
  11. 1 additional replica(s)
  12. S: 5f00f163d0c0a540ea99daf004f55588a802327b 192.168.10.220:6384
  13. slots: (0 slots) slave
  14. replicates d40d9a367c24784b0336c7b80fb4c87337e2cba6
  15. S: b3b1a848987b5a87a06888e126d5c9b16f871ff5 192.168.10.219:6381
  16. slots: (0 slots) slave
  17. replicates d2eb5a8a77f87888792428aed4692dfb907e7a1d
  18. M: d2eb5a8a77f87888792428aed4692dfb907e7a1d 192.168.10.220:6383
  19. slots:10923-16383 (5461 slots) master
  20. 1 additional replica(s)
  21. M: a8eafe8b19d6a28c034917da13a43ce1230fe870 192.168.10.220:6382
  22. slots:0-5460 (5461 slots) master
  23. 1 additional replica(s)
  24. S: a87d207204a53ab599bf7f6ffb9d679d0eef4f25 192.168.10.219:6380
  25. slots: (0 slots) slave
  26. replicates a8eafe8b19d6a28c034917da13a43ce1230fe870
  27. [OK] All nodes agree about slots configuration.
  28. >>> Check for open slots...
  29. >>> Check slots coverage...
  30. [OK] All 16384 slots covered.
[root@slave2 redis]# redis-trib.rb check 192.168.10.219:6379

Connecting to node 192.168.10.219:6379: OK

Connecting to node 192.168.10.220:6384: OK

Connecting to node 192.168.10.219:6381: OK

Connecting to node 192.168.10.220:6383: OK

Connecting to node 192.168.10.220:6382: OK

Connecting to node 192.168.10.219:6380: OK

>>> Performing Cluster Check (using node 192.168.10.219:6379)

M: d40d9a367c24784b0336c7b80fb4c87337e2cba6 192.168.10.219:6379

 slots:5461-10922 (5462 slots) master

 1 additional replica(s)

S: 5f00f163d0c0a540ea99daf004f55588a802327b 192.168.10.220:6384

 slots: (0 slots) slave

 replicates d40d9a367c24784b0336c7b80fb4c87337e2cba6

S: b3b1a848987b5a87a06888e126d5c9b16f871ff5 192.168.10.219:6381

 slots: (0 slots) slave

 replicates d2eb5a8a77f87888792428aed4692dfb907e7a1d

M: d2eb5a8a77f87888792428aed4692dfb907e7a1d 192.168.10.220:6383

 slots:10923-16383 (5461 slots) master

 1 additional replica(s)

M: a8eafe8b19d6a28c034917da13a43ce1230fe870 192.168.10.220:6382

 slots:0-5460 (5461 slots) master

 1 additional replica(s)

S: a87d207204a53ab599bf7f6ffb9d679d0eef4f25 192.168.10.219:6380

 slots: (0 slots) slave

 replicates a8eafe8b19d6a28c034917da13a43ce1230fe870

[OK] All nodes agree about slots configuration.

>>> Check for open slots...

>>> Check slots coverage...

[OK] All 16384 slots covered.

到这儿，redis集群就配置成功了

五，测试redis集群

  1. # redis-cli -c -p 6379 -h 192.168.10.219   //在219登录
  2. 192.168.10.219:6379> set tank tank1    //设置测试值
  3. -> Redirected to slot [4407] located at 192.168.10.220:6382
  4. OK   //直接转向到220 6382端口，数据存到了220 6382，不过有点奇怪
  5. 192.168.10.220:6382> get tank   //可以取到值
  6. "tank1"
  7. [root@manage redis]# redis-cli -c -p 6383 -h 192.168.10.220  //220机器，6383端口
  8. 192.168.10.220:6383> get tank
  9. -> Redirected to slot [4407] located at 192.168.10.220:6382  //直接转向220 6382端口
  10. "tank1"
  11. [root@manage redis]# ps aux |grep redis //查看进程
  12. root      7310  0.2  0.9 137436  9724 pts/0    Sl   Apr30   0:09 redis-server *:6382 [cluster]
  13. root      7311  0.2  0.9 137436  9776 pts/0    Sl   Apr30   0:09 redis-server *:6383 [cluster]
  14. root      7316  0.2  0.9 137436  9944 pts/0    Sl   Apr30   0:10 redis-server *:6384 [cluster]
  15. root      7478  0.0  0.0 103256   812 pts/0    S+   00:56   0:00 grep redis
  16. [root@manage redis]# kill -9 7310  //关闭220 6382端口，看数据会不会丢失
  17. [root@slave2 redis]# redis-trib.rb check 192.168.10.219:6379  //查看集群情况，任何接口都行
  18. Connecting to node 192.168.10.219:6379: OK
  19. Connecting to node 192.168.10.220:6384: OK
  20. Connecting to node 192.168.10.219:6381: OK
  21. Connecting to node 192.168.10.220:6383: OK
  22. Connecting to node 192.168.10.219:6380: OK
  23. >>> Performing Cluster Check (using node 192.168.10.219:6379)
  24. M: d40d9a367c24784b0336c7b80fb4c87337e2cba6 192.168.10.219:6379
  25. slots:5461-10922 (5462 slots) master
  26. 1 additional replica(s)
  27. S: 5f00f163d0c0a540ea99daf004f55588a802327b 192.168.10.220:6384
  28. slots: (0 slots) slave
  29. replicates d40d9a367c24784b0336c7b80fb4c87337e2cba6
  30. S: b3b1a848987b5a87a06888e126d5c9b16f871ff5 192.168.10.219:6381
  31. slots: (0 slots) slave
  32. replicates d2eb5a8a77f87888792428aed4692dfb907e7a1d
  33. M: d2eb5a8a77f87888792428aed4692dfb907e7a1d 192.168.10.220:6383
  34. slots:10923-16383 (5461 slots) master
  35. 1 additional replica(s)
  36. M: a87d207204a53ab599bf7f6ffb9d679d0eef4f25 192.168.10.219:6380
  37. slots:0-5460 (5461 slots) master
  38. 0 additional replica(s)
  39. [OK] All nodes agree about slots configuration.
  40. >>> Check for open slots...
  41. >>> Check slots coverage...
  42. [OK] All 16384 slots covered.  //变成，三主二从了
  43. [root@slave2 redis]# redis-cli -c -p 6379 -h 192.168.10.219    //219登录
  44. 192.168.10.219:6379> get tank
  45. -> Redirected to slot [4407] located at 192.168.10.219:6380   //数据被转到了6380节点了
  46. "tank1"
# redis-cli -c -p 6379 -h 192.168.10.219   //在219登录

192.168.10.219:6379> set tank tank1    //设置测试值

-> Redirected to slot [4407] located at 192.168.10.220:6382

OK   //直接转向到220 6382端口，数据存到了220 6382，不过有点奇怪

192.168.10.220:6382> get tank   //可以取到值

"tank1"

[root@manage redis]# redis-cli -c -p 6383 -h 192.168.10.220  //220机器，6383端口

192.168.10.220:6383> get tank

-> Redirected to slot [4407] located at 192.168.10.220:6382  //直接转向220 6382端口

"tank1"

[root@manage redis]# ps aux |grep redis //查看进程

root      7310  0.2  0.9 137436  9724 pts/0    Sl   Apr30   0:09 redis-server *:6382 [cluster]

root      7311  0.2  0.9 137436  9776 pts/0    Sl   Apr30   0:09 redis-server *:6383 [cluster]

root      7316  0.2  0.9 137436  9944 pts/0    Sl   Apr30   0:10 redis-server *:6384 [cluster]

root      7478  0.0  0.0 103256   812 pts/0    S+   00:56   0:00 grep redis

[root@manage redis]# kill -9 7310  //关闭220 6382端口，看数据会不会丢失

[root@slave2 redis]# redis-trib.rb check 192.168.10.219:6379  //查看集群情况，任何接口都行

Connecting to node 192.168.10.219:6379: OK

Connecting to node 192.168.10.220:6384: OK

Connecting to node 192.168.10.219:6381: OK

Connecting to node 192.168.10.220:6383: OK

Connecting to node 192.168.10.219:6380: OK

>>> Performing Cluster Check (using node 192.168.10.219:6379)

M: d40d9a367c24784b0336c7b80fb4c87337e2cba6 192.168.10.219:6379

 slots:5461-10922 (5462 slots) master

 1 additional replica(s)

S: 5f00f163d0c0a540ea99daf004f55588a802327b 192.168.10.220:6384

 slots: (0 slots) slave

 replicates d40d9a367c24784b0336c7b80fb4c87337e2cba6

S: b3b1a848987b5a87a06888e126d5c9b16f871ff5 192.168.10.219:6381

 slots: (0 slots) slave

 replicates d2eb5a8a77f87888792428aed4692dfb907e7a1d

M: d2eb5a8a77f87888792428aed4692dfb907e7a1d 192.168.10.220:6383

 slots:10923-16383 (5461 slots) master

 1 additional replica(s)

M: a87d207204a53ab599bf7f6ffb9d679d0eef4f25 192.168.10.219:6380

 slots:0-5460 (5461 slots) master

 0 additional replica(s)

[OK] All nodes agree about slots configuration.

>>> Check for open slots...

>>> Check slots coverage...

[OK] All 16384 slots covered.  //变成，三主二从了

[root@slave2 redis]# redis-cli -c -p 6379 -h 192.168.10.219    //219登录

192.168.10.219:6379> get tank

-> Redirected to slot [4407] located at 192.168.10.219:6380   //数据被转到了6380节点了

"tank1"

经测试，集群是可用的。

http://blog.51yip.com/nosql/1725.html

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