CentOS 1908 配置 Redis 5.0.7 五（集群新增主从节点）

冷不防 2023-07-06 14:47 1阅读 0赞

CentOS 下载：[http://mirrors.aliyun.com/centos/][http_mirrors.aliyun.com_centos]

Redis：[http://download.redis.io/releases/][http_download.redis.io_releases]

[CentOS 1908 配置 Redis 5.0.7 一（单节点）][CentOS 1908 _ Redis 5.0.7]

[CentOS 1908 配置 Redis 5.0.7 二（主从复制）][CentOS 1908 _ Redis 5.0.7 1]

[CentOS 1908 配置 Redis 5.0.7 三（哨兵模式）][CentOS 1908 _ Redis 5.0.7 2]

[CentOS 1908 配置 Redis 5.0.7 四（集群配置）][CentOS 1908 _ Redis 5.0.7 3]

--------------------

1.  查看 Redis 集群状态：
    
        ../src/redis-cli --cluster info 192.168.8.129:6001
    
    显示：
    
        [root@192 cluster]# ../src/redis-cli --cluster info 192.168.8.129:6001
        192.168.8.129:6001 (a9e25213...) -> 0 keys | 5461 slots | 1 slaves.
        192.168.8.129:6002 (579d2e92...) -> 0 keys | 5462 slots | 1 slaves.
        192.168.8.129:6003 (78b51db2...) -> 0 keys | 5461 slots | 1 slaves.
        [OK] 0 keys in 3 masters.
        0.00 keys per slot on average.
        [root@192 cluster]#
2.  查看 Redis 运行：
    
        ps -ef | grep redis
    
    显示：
    
        [root@192 cluster]# ps -ef | grep redis
        root       2462      1  0 22:25 ?        00:00:00 ../src/redis-server *:6001 [cluster]
        root       2467      1  0 22:25 ?        00:00:00 ../src/redis-server *:6002 [cluster]
        root       2472      1  0 22:25 ?        00:00:00 ../src/redis-server *:6003 [cluster]
        root       2477      1  0 22:25 ?        00:00:00 ../src/redis-server *:6004 [cluster]
        root       2482      1  0 22:25 ?        00:00:00 ../src/redis-server *:6005 [cluster]
        root       2487      1  0 22:25 ?        00:00:00 ../src/redis-server *:6006 [cluster]
        root       2606   2384  0 22:27 pts/0    00:00:00 grep --color=auto redis
        [root@192 cluster]#
3.  检查 Redis 集群：
    
        ../src/redis-cli --cluster check 192.168.8.129:6001
    
    显示：  
    从下面的信息可以看出：  
    1、6001、6002、6003为主节点，哈希槽分别为：0-5460、5464-10922、10923-16380（2的14次方平均分）。
    
        [root@192 cluster]# ../src/redis-cli --cluster check 192.168.8.129:6001
        192.168.8.129:6001 (a9e25213...) -> 0 keys | 5461 slots | 1 slaves.
        192.168.8.129:6002 (579d2e92...) -> 0 keys | 5462 slots | 1 slaves.
        192.168.8.129:6003 (78b51db2...) -> 0 keys | 5461 slots | 1 slaves.
        [OK] 0 keys in 3 masters.
        0.00 keys per slot on average.
        >>> Performing Cluster Check (using node 192.168.8.129:6001)
        M: a9e25213d46b7d19bc46931b0e2490a93c8237ac 192.168.8.129:6001
           slots:[0-5460] (5461 slots) master
           1 additional replica(s)
        S: 9e266605685ab453eccdb6042327a7e187cee7c3 192.168.8.129:6004
           slots: (0 slots) slave
           replicates 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8
        M: 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8 192.168.8.129:6002
           slots:[5461-10922] (5462 slots) master
           1 additional replica(s)
        S: 1780235a26ce1ed943fcdff24c509ebb27c2d03e 192.168.8.129:6005
           slots: (0 slots) slave
           replicates 78b51db2871be7fa265db054dd79cded9e97c4ff
        S: b6f7f1df8c16039c764d4c259182515139263e84 192.168.8.129:6006
           slots: (0 slots) slave
           replicates a9e25213d46b7d19bc46931b0e2490a93c8237ac
        M: 78b51db2871be7fa265db054dd79cded9e97c4ff 192.168.8.129:6003
           slots:[10923-16383] (5461 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.
        [root@192 cluster]#
4.  新建：redis-6007.conf 与 redis-6008.conf，参见：[CentOS 1908 配置 Redis 5.0.7 四（集群配置）][CentOS 1908 _ Redis 5.0.7 3]。  
     
5.  打开：redis-6007.conf 与 redis-6008.conf 对应的端口（这里使用 6007 与 6008），参见：[CentOS 1908 配置 Redis 5.0.7 四（集群配置）][CentOS 1908 _ Redis 5.0.7 3]。  
     
6.  运行：redis-6007.conf 与 redis-6008.conf，参见：[CentOS 1908 配置 Redis 5.0.7 四（集群配置）][CentOS 1908 _ Redis 5.0.7 3]。  
     
7.  在集群中添加一个节点：
    
        ../src/redis-cli --cluster add-node 192.168.8.129:6007 192.168.8.129:6001
8.  检查 Redis 集群：
    
        ../src/redis-cli --cluster check 192.168.8.129:6001
    
    显示：  
    从下面的信息可以看出：  
    1、6007 无 哈希槽，无 子节点。
    
        [root@192 cluster]# ../src/redis-cli --cluster check 192.168.8.129:6001
        192.168.8.129:6001 (a9e25213...) -> 0 keys | 5461 slots | 1 slaves.
        192.168.8.129:6002 (579d2e92...) -> 0 keys | 5462 slots | 1 slaves.
        192.168.8.129:6003 (78b51db2...) -> 0 keys | 5461 slots | 1 slaves.
        192.168.8.129:6007 (3067f715...) -> 0 keys | 0 slots | 0 slaves.
        [OK] 0 keys in 4 masters.
        0.00 keys per slot on average.
        >>> Performing Cluster Check (using node 192.168.8.129:6001)
        M: a9e25213d46b7d19bc46931b0e2490a93c8237ac 192.168.8.129:6001
           slots:[0-5460] (5461 slots) master
           1 additional replica(s)
        S: 9e266605685ab453eccdb6042327a7e187cee7c3 192.168.8.129:6004
           slots: (0 slots) slave
           replicates 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8
        M: 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8 192.168.8.129:6002
           slots:[5461-10922] (5462 slots) master
           1 additional replica(s)
        S: 1780235a26ce1ed943fcdff24c509ebb27c2d03e 192.168.8.129:6005
           slots: (0 slots) slave
           replicates 78b51db2871be7fa265db054dd79cded9e97c4ff
        S: b6f7f1df8c16039c764d4c259182515139263e84 192.168.8.129:6006
           slots: (0 slots) slave
           replicates a9e25213d46b7d19bc46931b0e2490a93c8237ac
        M: 78b51db2871be7fa265db054dd79cded9e97c4ff 192.168.8.129:6003
           slots:[10923-16383] (5461 slots) master
           1 additional replica(s)
        M: 3067f715eaa5c88c260fb2e7f21edc06112208d3 192.168.8.129:6007
           slots: (0 slots) master
        [OK] All nodes agree about slots configuration.
        >>> Check for open slots...
        >>> Check slots coverage...
        [OK] All 16384 slots covered.
        [root@192 cluster]#
9.  给 6007 添加子加点：  
    其中：  
    1、--cluster-master-id 后面显示的 3067f715eaa5c88c260fb2e7f21edc06112208d3 为 6007 的标识，可从上一步获取。
    
        ../src/redis-cli --cluster add-node --cluster-slave --cluster-master-id 3067f715eaa5c88c260fb2e7f21edc06112208d3 192.168.8.129:6008 192.168.8.129:6001
10. 检查 Redis 集群：
    
        ../src/redis-cli --cluster check 192.168.8.129:6001
    
    显示：  
    从下面的信息可以看出：  
    1、6007 无 哈希槽，有一个 子节点。
    
        [root@192 cluster]# ../src/redis-cli --cluster check 192.168.8.129:6001
        192.168.8.129:6001 (a9e25213...) -> 0 keys | 5461 slots | 1 slaves.
        192.168.8.129:6002 (579d2e92...) -> 0 keys | 5462 slots | 1 slaves.
        192.168.8.129:6003 (78b51db2...) -> 0 keys | 5461 slots | 1 slaves.
        192.168.8.129:6007 (3067f715...) -> 0 keys | 0 slots | 1 slaves.
        [OK] 0 keys in 4 masters.
        0.00 keys per slot on average.
        >>> Performing Cluster Check (using node 192.168.8.129:6001)
        M: a9e25213d46b7d19bc46931b0e2490a93c8237ac 192.168.8.129:6001
           slots:[0-5460] (5461 slots) master
           1 additional replica(s)
        S: 9e266605685ab453eccdb6042327a7e187cee7c3 192.168.8.129:6004
           slots: (0 slots) slave
           replicates 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8
        M: 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8 192.168.8.129:6002
           slots:[5461-10922] (5462 slots) master
           1 additional replica(s)
        S: 1780235a26ce1ed943fcdff24c509ebb27c2d03e 192.168.8.129:6005
           slots: (0 slots) slave
           replicates 78b51db2871be7fa265db054dd79cded9e97c4ff
        S: 5ef427a8a8c752301826e3f88e3a7282ff75a537 192.168.8.129:6008
           slots: (0 slots) slave
           replicates 3067f715eaa5c88c260fb2e7f21edc06112208d3
        S: b6f7f1df8c16039c764d4c259182515139263e84 192.168.8.129:6006
           slots: (0 slots) slave
           replicates a9e25213d46b7d19bc46931b0e2490a93c8237ac
        M: 78b51db2871be7fa265db054dd79cded9e97c4ff 192.168.8.129:6003
           slots:[10923-16383] (5461 slots) master
           1 additional replica(s)
        M: 3067f715eaa5c88c260fb2e7f21edc06112208d3 192.168.8.129:6007
           slots: (0 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.
        [root@192 cluster]#
11. 向 6007 分配 哈希槽：
    
        ../src/redis-cli --cluster reshard 192.168.8.129:6007
    
    显示：
    
        [root@192 cluster]# ../src/redis-cli --cluster reshard 192.168.8.129:6007
        >>> Performing Cluster Check (using node 192.168.8.129:6007)
        M: 3067f715eaa5c88c260fb2e7f21edc06112208d3 192.168.8.129:6007
           slots: (0 slots) master
           1 additional replica(s)
        M: 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8 192.168.8.129:6002
           slots:[5461-10922] (5462 slots) master
           1 additional replica(s)
        S: 9e266605685ab453eccdb6042327a7e187cee7c3 192.168.8.129:6004
           slots: (0 slots) slave
           replicates 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8
        S: 1780235a26ce1ed943fcdff24c509ebb27c2d03e 192.168.8.129:6005
           slots: (0 slots) slave
           replicates 78b51db2871be7fa265db054dd79cded9e97c4ff
        S: b6f7f1df8c16039c764d4c259182515139263e84 192.168.8.129:6006
           slots: (0 slots) slave
           replicates a9e25213d46b7d19bc46931b0e2490a93c8237ac
        S: 5ef427a8a8c752301826e3f88e3a7282ff75a537 192.168.8.129:6008
           slots: (0 slots) slave
           replicates 3067f715eaa5c88c260fb2e7f21edc06112208d3
        M: 78b51db2871be7fa265db054dd79cded9e97c4ff 192.168.8.129:6003
           slots:[10923-16383] (5461 slots) master
           1 additional replica(s)
        M: a9e25213d46b7d19bc46931b0e2490a93c8237ac 192.168.8.129:6001
           slots:[0-5460] (5461 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.
        How many slots do you want to move (from 1 to 16384)?
    
    输入（4个主节点，共16384个哈希槽，平均每个主节点为：4096）：4096  
    显示：
    
        [OK] All nodes agree about slots configuration.
        >>> Check for open slots...
        >>> Check slots coverage...
        [OK] All 16384 slots covered.
        How many slots do you want to move (from 1 to 16384)? 4096
        What is the receiving node ID?
    
    输入（6007的标识）：3067f715eaa5c88c260fb2e7f21edc06112208d3  
    显示：
    
        [OK] All nodes agree about slots configuration.
        >>> Check for open slots...
        >>> Check slots coverage...
        [OK] All 16384 slots covered.
        How many slots do you want to move (from 1 to 16384)? 4096
        What is the receiving node ID? 3067f715eaa5c88c260fb2e7f21edc06112208d3
        Please enter all the source node IDs.
          Type 'all' to use all the nodes as source nodes for the hash slots.
          Type 'done' once you entered all the source nodes IDs.
        Source node #1:
    
    输入（将从哪些节点分配至6007）：all  
    显示：
    
        ***
            Moving slot 1359 from a9e25213d46b7d19bc46931b0e2490a93c8237ac
            Moving slot 1360 from a9e25213d46b7d19bc46931b0e2490a93c8237ac
            Moving slot 1361 from a9e25213d46b7d19bc46931b0e2490a93c8237ac
            Moving slot 1362 from a9e25213d46b7d19bc46931b0e2490a93c8237ac
            Moving slot 1363 from a9e25213d46b7d19bc46931b0e2490a93c8237ac
            Moving slot 1364 from a9e25213d46b7d19bc46931b0e2490a93c8237ac
        Do you want to proceed with the proposed reshard plan (yes/no)?
    
    输入：yes  
    至此已完成 哈希槽 的分配。  
     
12. 检查 Redis 集群：
    
        ../src/redis-cli --cluster check 192.168.8.129:6001
    
    显示：  
    1、6007 有4096个哈希槽，有一个 子节点。
    
        [root@192 cluster]# ../src/redis-cli --cluster check 192.168.8.129:6001
        192.168.8.129:6001 (a9e25213...) -> 0 keys | 4096 slots | 1 slaves.
        192.168.8.129:6002 (579d2e92...) -> 0 keys | 4096 slots | 1 slaves.
        192.168.8.129:6003 (78b51db2...) -> 0 keys | 4096 slots | 1 slaves.
        192.168.8.129:6007 (3067f715...) -> 0 keys | 4096 slots | 1 slaves.
        [OK] 0 keys in 4 masters.
        0.00 keys per slot on average.
        >>> Performing Cluster Check (using node 192.168.8.129:6001)
        M: a9e25213d46b7d19bc46931b0e2490a93c8237ac 192.168.8.129:6001
           slots:[1365-5460] (4096 slots) master
           1 additional replica(s)
        S: 9e266605685ab453eccdb6042327a7e187cee7c3 192.168.8.129:6004
           slots: (0 slots) slave
           replicates 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8
        M: 579d2e9233faa12d6e13dfba8fe37f7e1c9983f8 192.168.8.129:6002
           slots:[6827-10922] (4096 slots) master
           1 additional replica(s)
        S: 1780235a26ce1ed943fcdff24c509ebb27c2d03e 192.168.8.129:6005
           slots: (0 slots) slave
           replicates 78b51db2871be7fa265db054dd79cded9e97c4ff
        S: 5ef427a8a8c752301826e3f88e3a7282ff75a537 192.168.8.129:6008
           slots: (0 slots) slave
           replicates 3067f715eaa5c88c260fb2e7f21edc06112208d3
        S: b6f7f1df8c16039c764d4c259182515139263e84 192.168.8.129:6006
           slots: (0 slots) slave
           replicates a9e25213d46b7d19bc46931b0e2490a93c8237ac
        M: 78b51db2871be7fa265db054dd79cded9e97c4ff 192.168.8.129:6003
           slots:[12288-16383] (4096 slots) master
           1 additional replica(s)
        M: 3067f715eaa5c88c260fb2e7f21edc06112208d3 192.168.8.129:6007
           slots:[0-1364],[5461-6826],[10923-12287] (4096 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.
        [root@192 cluster]#
    
     
13. 如有疑问，请留言。

[http_mirrors.aliyun.com_centos]: http://mirrors.aliyun.com/centos/
[http_download.redis.io_releases]: http://download.redis.io/releases/
[CentOS 1908 _ Redis 5.0.7]: https://xuxiaowei.blog.csdn.net/article/details/103964264
[CentOS 1908 _ Redis 5.0.7 1]: https://xuxiaowei.blog.csdn.net/article/details/103964991
[CentOS 1908 _ Redis 5.0.7 2]: https://xuxiaowei.blog.csdn.net/article/details/104092822
[CentOS 1908 _ Redis 5.0.7 3]: https://xuxiaowei.blog.csdn.net/article/details/104239333