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這期內容當中小編將會給大家帶來有關如何設置redis集群密碼,文章內容豐富且以專業的角度為大家分析和敘述,閱讀完這篇文章希望大家可以有所收獲。
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
測試環境:
centos7
集群規模:
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
上述就是小編為大家分享的如何設置redis集群密碼了,如果剛好有類似的疑惑,不妨參照上述分析進行理解。如果想知道更多相關知識,歡迎關注億速云行業資訊頻道。
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