yum安裝ruby rediscluster安裝

2021-10-13 21:31:06 字數 3711 閱讀 7036

redis-cluster安裝比較簡單,主要的過程為

修改redis.conf,需要幾台機器就新建幾個資料夾,我這起了6個

配置如下:

3.啟動節點,配置了幾個節點就啟動幾個

redis-5.0.4/src/redis-server ~/nodes/6379/redis.conf 


redis-5.0.4/src/redis-server ~/nodes/6380/redis.conf 


redis-5.0.4/src/redis-server ~/nodes/6381/redis.conf 


redis-5.0.4/src/redis-server ~/nodes/6382/redis.conf 


redis-5.0.4/src/redis-server ~/nodes/6383/redis.conf 


redis-5.0.4/src/redis-server ~/nodes/6384/redis.conf 


redis-5.0.4/src/redis-server ~/nodes/6385/redis.conf
4.啟動集群,啟動集群有點麻煩,主要redis-cluster用ruby寫的需要2.3.0以上版本,yum源安裝的ruby在2.0.0,需要先安裝ruby,可以先安裝ruby版本管理工具rvm,可以參考這篇安裝rvm,安裝完ruby後執行

gem install redis
安裝完後就可以啟動集群了,然後啟動redis-cli cluster,老版本應該是redis-trib.rb命令,啟動集群

redis-5.0.4/src/redis-cli --cluster create 192.168.245.128:6379 192.168.245.128:6380 192.168.245.128:6381 192.168.245.128:6382 192.168.245.128:6383 192.168.245.128:6384
接著redis會顯示分配槽資訊和集群初始化的資訊:

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


master[0] -> slots 0 - 2730


master[1] -> slots 2731 - 5460


master[2] -> slots 5461 - 8191


master[3] -> slots 8192 - 10922


master[4] -> slots 10923 - 13652


master[5] -> slots 13653 - 16383


m: 1986ebba976f77b4dab84a44bac17623dc430ab0 192.168.245.128:6379


slots:[0-2730] (2731 slots) master


m: 97241dfe9f5ffb78398b4936268f034821ff1b4f 192.168.245.128:6380


slots:[2731-5460] (2730 slots) master


m: aed493eb5e4cdf1a2e71896b67d2d3df4688002c 192.168.245.128:6381


slots:[5461-8191] (2731 slots) master


m: f1e5c142e04be48ee0b2788ad832d6ef2c6ec939 192.168.245.128:6382


slots:[8192-10922] (2731 slots) master


m: da9c3ad1769082c7c47d16731784de6026e46de0 192.168.245.128:6383


slots:[10923-13652] (2730 slots) master


m: 9a4552a184647f080e9d280e74bceafd974bd1a5 192.168.245.128:6384


slots:[13653-16383] (2731 slots) master


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 192.168.245.128:6379)


m: 1986ebba976f77b4dab84a44bac17623dc430ab0 192.168.245.128:6379


slots:[0-2730] (2731 slots) master


m: 9a4552a184647f080e9d280e74bceafd974bd1a5 192.168.245.128:6384


slots:[13653-16383] (2731 slots) master


m: 97241dfe9f5ffb78398b4936268f034821ff1b4f 192.168.245.128:6380


slots:[2731-5460] (2730 slots) master


m: f1e5c142e04be48ee0b2788ad832d6ef2c6ec939 192.168.245.128:6382


slots:[8192-10922] (2731 slots) master


m: aed493eb5e4cdf1a2e71896b67d2d3df4688002c 192.168.245.128:6381


slots:[5461-8191] (2731 slots) master


m: da9c3ad1769082c7c47d16731784de6026e46de0 192.168.245.128:6383


slots:[10923-13652] (2730 slots) master


[ok] all nodes agree about slots configuration.


>>> check for open slots...


>>> check slots coverage...


[ok] all 16384 slots covered.
可以看到總共6臺機器,都是主,16384個槽分到了6臺機器上.

客戶端隨便輸入連線到哪台機器上

redis-5.0.4/src/redis-cli -h 192.168.245.128 -p 6379
隨便設乙個值

set pmj 'redis'
redis的返回

(error) moved 10386 192.168.245.128:6382
可以看到redis的去中心化是需要客戶端協助完成的,客戶端隨便連一台機器,設定值後,當前伺服器會這個key是不是本機器,如果不是本機器再告訴客戶端應該去哪台機器上設定,如果我們換到連6382這個節點可以看到值設定成功.

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