Codis3.2集羣HA高可用方案
Codis高可用方案官方推薦使用Sentinel
Redis 本身就是最終一致性的。Master 掛了,Promote Slave 成爲新的 Master 需要時間(測試15秒內)。其實 Sentinel 就是這個邏輯。Codis3.2 自己沒有實現 HA,而是直接依賴 Sentinel 的。
注意事項:
Sentinel需要使用原生的Redis-server,版本要等於或高於Codis3.2裏面的3.2.8版本, 這裏是在Redis3.2.9的下配置測試的,另外Protected-mode no這個保護模式需要關閉,Sentinel.conf默認配置不需要寫主從關係,Codif-fe界面SYNC會讀取主從關係。
1,每個 Group 前面的 SYNC 是刷 group 所涉及到的 Slot 的路由表給 Proxy 的,包含主從關係。
2,而 Sentinel 前面的 SYNC 是給所有 Sentinel 刷配置的,同時把 Sentinel 列表刷給每個 Proxy。所以只要在集羣搭建完成之後,或者每次添加、刪除 Redis server 之後(穩定之後) ,在 Sentinel 下面點一次 SYNC 即可。
3,Codis3.2 的只解決了併發遷移+異步遷移問題。不會去做 HA 有關的工作。所以在 3.2 下解決問題的話, Sentinel 就足夠了,而且只能用 Sentinel。Sentinel 負責的是 Group 內的主從切換。
4,內核優化
echo never > /sys/kernel/mm/transparent_hugepage/enabled
sysctl vm.overcommit_memory=1
一,Codis集羣架構
192.168.188.120 codis120 codis-server zookeeper sentinel 192.168.188.121 codis121 codis-server zookeeper sentinel 192.168.188.122 codis122 codis-server zookeeper sentinel 192.168.188.123 codis123 codis-server codis-proxy sentinellvs 192.168.188.124 codis124 codis-server codis-proxy sentinellvs 192.168.188.125 codis125 codis-server codis-dashboard sentinelcodis-fe
二,配置Codis-server
每臺虛擬機部署3個實例:6379、6380、6381,共18個實例
192.168.188.120:6379、6380、6381 192.168.188.121:6379、6380、6381 192.168.188.122:6379、6380、6381 192.168.188.123:6379、6380、6381 192.168.188.124:6379、6380、6381 192.168.188.125:6379、6380、6381
三,配置Group
設置好1主2從關係,共6組,注意主從從3個實例需要來自3臺虛擬機
Group1(主從從) 192.168.188.120:6379 192.168.188.121:6380 192.168.188.123:6381 Group2(主從從) 192.168.188.121:6379 192.168.188.120:6380 192.168.188.124:6381 Group3(主從從) 192.168.188.122:6379 192.168.188.123:6380 192.168.188.125:6381 Group4(主從從) 192.168.188.123:6379 192.168.188.122:6380 192.168.188.120:6381 Group5(主從從) 192.168.188.124:6379 192.168.188.125:6380 192.168.188.121:6381 Group6(主從從) 192.168.188.125:6379 192.168.188.124:6380 192.168.188.122:6381
四,配置Sentinel
需要配置6個Sentinel,沒臺虛擬機上1個
注意這個原生是在sentinel 的配置文件裏配置,3.2.9的原生的sentinel配置下,另外protected-mode no這個保護模式需要關閉,sentinel.conf默認配置不需要寫主從關係,Codif-fe界面SYNC會讀取主從關係。
1,配置信息
[root@codis120 config]# cat sentinel.conf |grep -Ev "^#|^$"
protected-mode no port 26379 dir "/tmp"
2,啓動sentinel,多個Sentinel便於選舉和保證高可用
192.168.188.120:26379 192.168.188.120:26379 192.168.188.120:26379 192.168.188.120:26379 192.168.188.120:26379 192.168.188.120:26379
3,SYNC後通過日誌查看哨兵記錄
20980:X 19 Sep 10:53:28.965 # +monitor master codis-easypass-2 192.168.188.121 6379 quorum 2 20980:X 19 Sep 10:53:28.965 # +set master codis-easypass-2 192.168.188.121 6379 parallel-syncs 1 20980:X 19 Sep 10:53:28.965 # +set master codis-easypass-2 192.168.188.121 6379 down-after-milliseconds 30000 20980:X 19 Sep 10:53:28.965 # +set master codis-easypass-2 192.168.188.121 6379 failover-timeout 300000 20980:X 19 Sep 10:53:28.967 * +slave slave 192.168.188.120:6380 192.168.188.120 6380 @ codis-easypass-2 192.168.188.121 6379 20980:X 19 Sep 10:53:28.969 * +slave slave 192.168.188.124:6381 192.168.188.124 6381 @ codis-easypass-2 192.168.188.121 6379 20980:X 19 Sep 10:53:28.973 # +monitor master codis-easypass-3 192.168.188.122 6379 quorum 2 20980:X 19 Sep 10:53:28.973 # +set master codis-easypass-3 192.168.188.122 6379 parallel-syncs 1 20980:X 19 Sep 10:53:28.973 # +set master codis-easypass-3 192.168.188.122 6379 down-after-milliseconds 30000 20980:X 19 Sep 10:53:28.973 # +set master codis-easypass-3 192.168.188.122 6379 failover-timeout 300000 20980:X 19 Sep 10:53:28.997 # +monitor master codis-easypass-4 192.168.188.123 6379 quorum 2 20980:X 19 Sep 10:53:28.997 # +set master codis-easypass-4 192.168.188.123 6379 parallel-syncs 1 20980:X 19 Sep 10:53:28.997 # +set master codis-easypass-4 192.168.188.123 6379 down-after-milliseconds 30000 20980:X 19 Sep 10:53:28.997 # +set master codis-easypass-4 192.168.188.123 6379 failover-timeout 300000 20980:X 19 Sep 10:53:29.001 # +monitor master codis-easypass-5 192.168.188.124 6379 quorum 2 20980:X 19 Sep 10:53:29.002 # +set master codis-easypass-5 192.168.188.124 6379 parallel-syncs 1 20980:X 19 Sep 10:53:29.002 # +set master codis-easypass-5 192.168.188.124 6379 down-after-milliseconds 30000 20980:X 19 Sep 10:53:29.002 # +set master codis-easypass-5 192.168.188.124 6379 failover-timeout 300000 20980:X 19 Sep 10:53:29.006 # +monitor master codis-easypass-6 192.168.188.125 6379 quorum 2 20980:X 19 Sep 10:53:29.006 # +set master codis-easypass-6 192.168.188.125 6379 parallel-syncs 1 20980:X 19 Sep 10:53:29.006 # +set master codis-easypass-6 192.168.188.125 6379 down-after-milliseconds 30000 20980:X 19 Sep 10:53:29.006 # +set master codis-easypass-6 192.168.188.125 6379 failover-timeout 300000 20980:X 19 Sep 10:53:29.010 # +monitor master codis-easypass-1 192.168.188.120 6379 quorum 2 20980:X 19 Sep 10:53:29.010 # +set master codis-easypass-1 192.168.188.120 6379 parallel-syncs 1 20980:X 19 Sep 10:53:29.010 # +set master codis-easypass-1 192.168.188.120 6379 down-after-milliseconds 30000 20980:X 19 Sep 10:53:29.010 # +set master codis-easypass-1 192.168.188.120 6379 failover-timeout 300000 20980:X 19 Sep 10:53:29.029 * +slave slave 192.168.188.121:6380 192.168.188.121 6380 @ codis-easypass-1 192.168.188.120 6379 20980:X 19 Sep 10:53:29.031 * +slave slave 192.168.188.123:6381 192.168.188.123 6381 @ codis-easypass-1 192.168.188.120 6379 20980:X 19 Sep 10:53:29.033 * +slave slave 192.168.188.124:6380 192.168.188.124 6380 @ codis-easypass-6 192.168.188.125 6379 20980:X 19 Sep 10:53:29.036 * +slave slave 192.168.188.122:6381 192.168.188.122 6381 @ codis-easypass-6 192.168.188.125 6379 20980:X 19 Sep 10:53:29.038 * +slave slave 192.168.188.123:6380 192.168.188.123 6380 @ codis-easypass-3 192.168.188.122 6379 20980:X 19 Sep 10:53:29.040 * +slave slave 192.168.188.125:6381 192.168.188.125 6381 @ codis-easypass-3 192.168.188.122 6379 20980:X 19 Sep 10:53:29.042 * +slave slave 192.168.188.122:6380 192.168.188.122 6380 @ codis-easypass-4 192.168.188.123 6379 20980:X 19 Sep 10:53:29.044 * +slave slave 192.168.188.120:6381 192.168.188.120 6381 @ codis-easypass-4 192.168.188.123 6379 20980:X 19 Sep 10:53:29.047 * +slave slave 192.168.188.125:6380 192.168.188.125 6380 @ codis-easypass-5 192.168.188.124 6379 20980:X 19 Sep 10:53:29.049 * +slave slave 192.168.188.121:6381 192.168.188.121 6381 @ codis-easypass-5 192.168.188.124 6379 20980:X 19 Sep 10:53:30.958 * +sentinel sentinel 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 192.168.188.123 26379 @ codis-easypass-4 192.168.188.123 6379 20980:X 19 Sep 10:53:30.960 * +sentinel sentinel 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 192.168.188.123 26379 @ codis-easypass-3 192.168.188.122 6379 20980:X 19 Sep 10:53:30.962 * +sentinel sentinel 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 192.168.188.123 26379 @ codis-easypass-2 192.168.188.121 6379 20980:X 19 Sep 10:53:30.965 * +sentinel sentinel 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 192.168.188.123 26379 @ codis-easypass-6 192.168.188.125 6379 20980:X 19 Sep 10:53:30.976 * +sentinel sentinel 28758dd53514376486fdec2acdb73f273fa90645 192.168.188.121 26379 @ codis-easypass-2 192.168.188.121 6379 20980:X 19 Sep 10:53:30.978 * +sentinel sentinel 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 192.168.188.123 26379 @ codis-easypass-5 192.168.188.124 6379 20980:X 19 Sep 10:53:30.981 * +sentinel sentinel 28758dd53514376486fdec2acdb73f273fa90645 192.168.188.121 26379 @ codis-easypass-3 192.168.188.122 6379 20980:X 19 Sep 10:53:30.989 * +sentinel sentinel 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 192.168.188.122 26379 @ codis-easypass-2 192.168.188.121 6379 20980:X 19 Sep 10:53:30.991 * +sentinel sentinel 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 192.168.188.122 26379 @ codis-easypass-4 192.168.188.123 6379 20980:X 19 Sep 10:53:30.993 * +sentinel sentinel 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 192.168.188.122 26379 @ codis-easypass-3 192.168.188.122 6379 20980:X 19 Sep 10:53:31.001 * +sentinel sentinel d0268512448981b56e0eb76318af009b4575404c 192.168.188.125 26379 @ codis-easypass-6 192.168.188.125 6379 20980:X 19 Sep 10:53:31.003 * +sentinel sentinel d0268512448981b56e0eb76318af009b4575404c 192.168.188.125 26379 @ codis-easypass-1 192.168.188.120 6379 20980:X 19 Sep 10:53:31.005 * +sentinel sentinel d0268512448981b56e0eb76318af009b4575404c 192.168.188.125 26379 @ codis-easypass-4 192.168.188.123 6379 20980:X 19 Sep 10:53:31.008 * +sentinel sentinel d0268512448981b56e0eb76318af009b4575404c 192.168.188.125 26379 @ codis-easypass-3 192.168.188.122 6379 20980:X 19 Sep 10:53:31.010 * +sentinel sentinel d0268512448981b56e0eb76318af009b4575404c 192.168.188.125 26379 @ codis-easypass-2 192.168.188.121 6379 20980:X 19 Sep 10:53:31.012 * +sentinel sentinel d0268512448981b56e0eb76318af009b4575404c 192.168.188.125 26379 @ codis-easypass-5 192.168.188.124 6379 20980:X 19 Sep 10:53:31.015 * +sentinel sentinel 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 192.168.188.123 26379 @ codis-easypass-1 192.168.188.120 6379 20980:X 19 Sep 10:53:31.052 * +sentinel sentinel 28758dd53514376486fdec2acdb73f273fa90645 192.168.188.121 26379 @ codis-easypass-6 192.168.188.125 6379 20980:X 19 Sep 10:53:31.055 * +sentinel sentinel 28758dd53514376486fdec2acdb73f273fa90645 192.168.188.121 26379 @ codis-easypass-1 192.168.188.120 6379 20980:X 19 Sep 10:53:31.058 * +sentinel sentinel 28758dd53514376486fdec2acdb73f273fa90645 192.168.188.121 26379 @ codis-easypass-4 192.168.188.123 6379 20980:X 19 Sep 10:53:31.059 * +sentinel sentinel 28758dd53514376486fdec2acdb73f273fa90645 192.168.188.121 26379 @ codis-easypass-5 192.168.188.124 6379 20980:X 19 Sep 10:53:31.062 * +sentinel sentinel 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 192.168.188.122 26379 @ codis-easypass-6 192.168.188.125 6379 20980:X 19 Sep 10:53:31.069 * +sentinel sentinel 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 192.168.188.122 26379 @ codis-easypass-5 192.168.188.124 6379 20980:X 19 Sep 10:53:31.071 * +sentinel sentinel 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 192.168.188.122 26379 @ codis-easypass-1 192.168.188.120 6379 20980:X 19 Sep 10:53:31.276 * +sentinel sentinel 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 192.168.188.124 26379 @ codis-easypass-4 192.168.188.123 6379 20980:X 19 Sep 10:53:31.292 * +sentinel sentinel 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 192.168.188.124 26379 @ codis-easypass-6 192.168.188.125 6379 20980:X 19 Sep 10:53:31.303 * +sentinel sentinel 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 192.168.188.124 26379 @ codis-easypass-3 192.168.188.122 6379 20980:X 19 Sep 10:53:31.314 * +sentinel sentinel 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 192.168.188.124 26379 @ codis-easypass-2 192.168.188.121 6379 20980:X 19 Sep 10:53:31.322 * +sentinel sentinel 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 192.168.188.124 26379 @ codis-easypass-5 192.168.188.124 6379 20980:X 19 Sep 10:53:31.325 * +sentinel sentinel 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 192.168.188.124 26379 @ codis-easypass-1 192.168.188.120 6379
4,也可以通過圖形界面查看
http://192.168.188.125:18080/api/topom/sentinels/info/192.168.188.120:26379/monitored
5,最後配置文件覈對
新增內容已經保存到sentinel.conf裏面了
[root@codis120 config]# cat sentinel.conf |grep -Ev "^#|^$"
protected-mode no port 26379 dir "/tmp" sentinel myid 620b655b311656aa6016e6b864b0f2a8fb03d453 sentinel monitor codis-easypass-6 192.168.188.125 6379 2 sentinel failover-timeout codis-easypass-6 300000 sentinel config-epoch codis-easypass-6 0 sentinel leader-epoch codis-easypass-6 0 sentinel known-slave codis-easypass-6 192.168.188.124 6380 sentinel known-slave codis-easypass-6 192.168.188.122 6381 sentinel known-sentinel codis-easypass-6 192.168.188.125 26379 d0268512448981b56e0eb76318af009b4575404c sentinel known-sentinel codis-easypass-6 192.168.188.121 26379 28758dd53514376486fdec2acdb73f273fa90645 sentinel known-sentinel codis-easypass-6 192.168.188.123 26379 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 sentinel known-sentinel codis-easypass-6 192.168.188.122 26379 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 sentinel known-sentinel codis-easypass-6 192.168.188.124 26379 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 sentinel monitor codis-easypass-2 192.168.188.121 6379 2 sentinel failover-timeout codis-easypass-2 300000 sentinel config-epoch codis-easypass-2 0 sentinel leader-epoch codis-easypass-2 0 sentinel known-slave codis-easypass-2 192.168.188.120 6380 sentinel known-slave codis-easypass-2 192.168.188.124 6381 sentinel known-sentinel codis-easypass-2 192.168.188.125 26379 d0268512448981b56e0eb76318af009b4575404c sentinel known-sentinel codis-easypass-2 192.168.188.121 26379 28758dd53514376486fdec2acdb73f273fa90645 sentinel known-sentinel codis-easypass-2 192.168.188.123 26379 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 sentinel known-sentinel codis-easypass-2 192.168.188.122 26379 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 sentinel known-sentinel codis-easypass-2 192.168.188.124 26379 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 sentinel monitor codis-easypass-1 192.168.188.120 6379 2 sentinel failover-timeout codis-easypass-1 300000 sentinel config-epoch codis-easypass-1 0 sentinel leader-epoch codis-easypass-1 0 sentinel known-slave codis-easypass-1 192.168.188.123 6381 sentinel known-slave codis-easypass-1 192.168.188.121 6380 sentinel known-sentinel codis-easypass-1 192.168.188.125 26379 d0268512448981b56e0eb76318af009b4575404c sentinel known-sentinel codis-easypass-1 192.168.188.121 26379 28758dd53514376486fdec2acdb73f273fa90645 sentinel known-sentinel codis-easypass-1 192.168.188.123 26379 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 sentinel known-sentinel codis-easypass-1 192.168.188.122 26379 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 sentinel known-sentinel codis-easypass-1 192.168.188.124 26379 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 sentinel monitor codis-easypass-3 192.168.188.122 6379 2 sentinel failover-timeout codis-easypass-3 300000 sentinel config-epoch codis-easypass-3 0 sentinel leader-epoch codis-easypass-3 0 sentinel known-slave codis-easypass-3 192.168.188.123 6380 sentinel known-slave codis-easypass-3 192.168.188.125 6381 sentinel known-sentinel codis-easypass-3 192.168.188.125 26379 d0268512448981b56e0eb76318af009b4575404c sentinel known-sentinel codis-easypass-3 192.168.188.121 26379 28758dd53514376486fdec2acdb73f273fa90645 sentinel known-sentinel codis-easypass-3 192.168.188.123 26379 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 sentinel known-sentinel codis-easypass-3 192.168.188.122 26379 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 sentinel known-sentinel codis-easypass-3 192.168.188.124 26379 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 sentinel monitor codis-easypass-4 192.168.188.123 6379 2 sentinel failover-timeout codis-easypass-4 300000 sentinel config-epoch codis-easypass-4 0 sentinel leader-epoch codis-easypass-4 0 sentinel known-slave codis-easypass-4 192.168.188.120 6381 sentinel known-slave codis-easypass-4 192.168.188.122 6380 sentinel known-sentinel codis-easypass-4 192.168.188.125 26379 d0268512448981b56e0eb76318af009b4575404c sentinel known-sentinel codis-easypass-4 192.168.188.121 26379 28758dd53514376486fdec2acdb73f273fa90645 sentinel known-sentinel codis-easypass-4 192.168.188.123 26379 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 sentinel known-sentinel codis-easypass-4 192.168.188.122 26379 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 sentinel known-sentinel codis-easypass-4 192.168.188.124 26379 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 sentinel monitor codis-easypass-5 192.168.188.124 6379 2 sentinel failover-timeout codis-easypass-5 300000 sentinel config-epoch codis-easypass-5 0 sentinel leader-epoch codis-easypass-5 0 sentinel known-slave codis-easypass-5 192.168.188.125 6380 sentinel known-slave codis-easypass-5 192.168.188.121 6381 sentinel known-sentinel codis-easypass-5 192.168.188.125 26379 d0268512448981b56e0eb76318af009b4575404c sentinel known-sentinel codis-easypass-5 192.168.188.121 26379 28758dd53514376486fdec2acdb73f273fa90645 sentinel known-sentinel codis-easypass-5 192.168.188.123 26379 9c1ccd7b64d0eb0fa0be4db4b4b86e4b8aa79c54 sentinel known-sentinel codis-easypass-5 192.168.188.122 26379 2204a1a2c3c5387bb33ab34de52c4eeda59257d4 sentinel known-sentinel codis-easypass-5 192.168.188.124 26379 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 sentinel current-epoch 0
五,Group內主從切換測試
Group3測試
Group3(主從從)
192.168.188.122:6379 192.168.188.123:6380 192.168.188.125:6381
1,首先,停止192.168.188.122:6379
[root@codis122 admin]# /usr/local/codis/admin/codis-server-admin-6379.sh stop
/usr/local/codis/admin/../config/redis-6379.conf
stopping codis-server ...
STOPPED
2,檢測發現192.168.188.125:6381被選舉爲主了,切換過程大概15秒內
8980:X 19 Sep 11:51:17.416 # +sdown master codis-easypass-3 192.168.188.122 6379 8980:X 19 Sep 11:51:17.461 # +new-epoch 1 8980:X 19 Sep 11:51:17.462 # +vote-for-leader 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 1 8980:X 19 Sep 11:51:17.488 # +odown master codis-easypass-3 192.168.188.122 6379 #quorum 6/2 8980:X 19 Sep 11:51:17.488 # Next failover delay: I will not start a failover before Tue Sep 19 12:01:17 2017 8980:X 19 Sep 11:51:18.283 # +config-update-from sentinel 6ee9b78f205908be1bbbe5dc9cc5a55cb6d1f3f9 192.168.188.124 26379 @ codis-easypass-3 192.168.188.122 6379 8980:X 19 Sep 11:51:18.283 # +switch-master codis-easypass-3 192.168.188.122 6379 192.168.188.125 6381 8980:X 19 Sep 11:51:18.284 * +slave slave 192.168.188.123:6380 192.168.188.123 6380 @ codis-easypass-3 192.168.188.125 6381 8980:X 19 Sep 11:51:18.284 * +slave slave 192.168.188.122:6379 192.168.188.122 6379 @ codis-easypass-3 192.168.188.125 6381 8980:X 19 Sep 11:51:48.285 # +sdown slave 192.168.188.122:6379 192.168.188.122 6379 @ codis-easypass-3 192.168.188.125 6381 8980:X 19 Sep 11:52:07.256 # -sdown slave 192.168.188.122:6379 192.168.188.122 6379 @ codis-easypass-3 192.168.188.125 6381
3,最後啓動192.168.188.122:6379,變成了Group3的一個從
[root@codis122 admin]# /usr/local/codis/admin/codis-server-admin-6379.sh start
/usr/local/codis/admin/../config/redis-6379.conf
starting codis-server ...
18701:X 19 Sep 11:52:07.331 # -sdown slave 192.168.188.122:6379 192.168.188.122 6379 @ codis-easypass-3 192.168.188.125 6381