基于redis集群設置密碼的實例

更新時間：2018年05月16日 09:47:56 作者：帶魚兄

今天小編就為大家分享一篇基于redis集群設置密碼的實例，具有很好的參考價值，希望對大家有所幫助。一起跟隨小編過來看看吧

注意事項：

1.如果是使用redis-trib.rb工具構建集群，集群構建完成前不要配置密碼，集群構建完畢再通過config set + config rewrite命令逐個機器設置密碼

2.如果對集群設置密碼，那么requirepass和masterauth都需要設置，否則發(fā)生主從切換時，就會遇到授權問題，可以模擬并觀察日志

3.各個節(jié)點的密碼都必須一致，否則Redirected就會失敗

config set masterauth abc 
config set requirepass abc 
config rewrite

測試版本：

redis3.0.7

測試環(huán)境：

centos7

集群規(guī)模：

3主3從

集群構建成功前的redis配置：

port 8000 
cluster-enabled yes 
cluster-config-file "nodes-8000.conf" 
cluster-node-timeout 15000 
dir "/opt/redisdata" 
appendonly yes 
appendfilename "appendonly-8000.aof" 
logfile "/opt/redisdata/8000.log" 
daemonize yes 
pidfile "/var/run/redis-8000.pid" 
dbfilename "dump-8000.rdb" 
cluster-require-full-coverage no

集群構建成功后的redis配置：

port 8004 
cluster-enabled yes 
cluster-config-file "nodes-8004.conf" 
cluster-node-timeout 15000 
dir "/opt/redisdata" 
appendonly yes 
appendfilename "appendonly-8004.aof" 
logfile "/opt/redisdata/8004.log" 
daemonize yes 
pidfile "/var/run/redis-8004.pid" 
dbfilename "dump-8004.rdb" 
cluster-require-full-coverage no 
# Generated by CONFIG REWRITE 
requirepass "abc" 
masterauth "abc"

測試：

1.8002是主，8005是8002的從，現(xiàn)在要kill掉8002模擬主從切換

2.查看8005的日志，8005最終被選舉成新的master

21227:S 14 Jun 07:28:49.343 # Connection with master lost.
21227:S 14 Jun 07:28:49.343 * Caching the disconnected master state.
21227:S 14 Jun 07:28:49.433 * Connecting to MASTER 127.0.0.1:8002
21227:S 14 Jun 07:28:49.433 * MASTER <-> SLAVE sync started
21227:S 14 Jun 07:28:49.434 # Error condition on socket for SYNC: Connection refused
21227:S 14 Jun 07:28:50.437 * Connecting to MASTER 127.0.0.1:8002

21227:S 14 Jun 07:29:06.205 # Start of election delayed for 564 milliseconds (rank #0, offset 337).
21227:S 14 Jun 07:29:06.507 * Connecting to MASTER 127.0.0.1:8002
21227:S 14 Jun 07:29:06.507 * MASTER <-> SLAVE sync started
21227:S 14 Jun 07:29:06.507 # Error condition on socket for SYNC: Connection refused
21227:S 14 Jun 07:29:06.808 # Starting a failover election for epoch 10.
21227:S 14 Jun 07:29:06.810 # Failover election won: I'm the new master.
21227:S 14 Jun 07:29:06.810 # configEpoch set to 10 after successful failover
21227:M 14 Jun 07:29:06.810 * Discarding previously cached master state.

3.再次啟動8002，查看8005的日志，8002已經(jīng)變成8005的slave

21227:M 14 Jun 07:32:53.511 * Slave 127.0.0.1:8002 asks for synchronization
21227:M 14 Jun 07:32:53.511 * Full resync requested by slave 127.0.0.1:8002
21227:M 14 Jun 07:32:53.511 * Starting BGSAVE for SYNC with target: disk
21227:M 14 Jun 07:32:53.511 * Background saving started by pid 21613
21613:C 14 Jun 07:32:53.513 * DB saved on disk
21613:C 14 Jun 07:32:53.513 * RDB: 0 MB of memory used by copy-on-write
21227:M 14 Jun 07:32:53.612 * Background saving terminated with success
21227:M 14 Jun 07:32:53.612 * Synchronization with slave 127.0.0.1:8002 succeeded

4.簡單測試了GET SET命令，正常

以上這篇基于redis集群設置密碼的實例就是小編分享給大家的全部內(nèi)容了，希望能給大家一個參考，也希望大家多多支持腳本之家。

您可能感興趣的文章: