这期内容当中小编将会给大家带来有关如何设置redis集群密码，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

注意事项：

1.如果是使用redis-trib.rb工具构建集群，集群构建完成前不要配置密码，集群构建完毕再通过config set + config rewrite命令逐个机器设置密码

2.如果对集群设置密码，那么requirepass和masterauth都需要设置，否则发生主从切换时，就会遇到授权问题，可以模拟并观察日志

3.各个节点的密码都必须一致，否则Redirected就会失败

configsetmasterauthabcconfigsetrequirepassabcconfigrewrite

测试版本：

redis3.0.7

测试环境：

centos7

集群规模：

3主3从

集群构建成功前的redis配置：

port8000cluster-enabledyescluster-config-file"nodes-8000.conf"cluster-node-timeout15000dir"/opt/redisdata"appendonlyyesappendfilename"appendonly-8000.aof"logfile"/opt/redisdata/8000.log"daemonizeyespidfile"/var/run/redis-8000.pid"dbfilename"dump-8000.rdb"cluster-require-full-coverageno

集群构建成功后的redis配置：

port8004cluster-enabledyescluster-config-file"nodes-8004.conf"cluster-node-timeout15000dir"/opt/redisdata"appendonlyyesappendfilename"appendonly-8004.aof"logfile"/opt/redisdata/8004.log"daemonizeyespidfile"/var/run/redis-8004.pid"dbfilename"dump-8004.rdb"cluster-require-full-coverageno#GeneratedbyCONFIGREWRITErequirepass"abc"masterauth"abc"

测试：

1.8002是主，8005是8002的从，现在要kill掉8002模拟主从切换

2.查看8005的日志，8005最终被选举成新的master

21227:S14Jun07:28:49.343#Connectionwithmasterlost.21227:S14Jun07:28:49.343*Cachingthedisconnectedmasterstate.21227:S14Jun07:28:49.433*ConnectingtoMASTER127.0.0.1:800221227:S14Jun07:28:49.433*MASTER<->SLAVEsyncstarted21227:S14Jun07:28:49.434#ErrorconditiononsocketforSYNC:Connectionrefused21227:S14Jun07:28:50.437*ConnectingtoMASTER127.0.0.1:800221227:S14Jun07:29:06.205#Startofelectiondelayedfor564milliseconds(rank#0,offset337).21227:S14Jun07:29:06.507*ConnectingtoMASTER127.0.0.1:800221227:S14Jun07:29:06.507*MASTER<->SLAVEsyncstarted21227:S14Jun07:29:06.507#ErrorconditiononsocketforSYNC:Connectionrefused21227:S14Jun07:29:06.808#Startingafailoverelectionforepoch10.21227:S14Jun07:29:06.810#Failoverelectionwon:I'mthenewmaster.21227:S14Jun07:29:06.810#configEpochsetto10aftersuccessfulfailover21227:M14Jun07:29:06.810*Discardingpreviouslycachedmasterstate.

3.再次启动8002，查看8005的日志，8002已经变成8005的slave

21227:M14Jun07:32:53.511*Slave127.0.0.1:8002asksforsynchronization21227:M14Jun07:32:53.511*Fullresyncrequestedbyslave127.0.0.1:800221227:M14Jun07:32:53.511*StartingBGSAVEforSYNCwithtarget:disk21227:M14Jun07:32:53.511*Backgroundsavingstartedbypid2161321613:C14Jun07:32:53.513*DBsavedondisk21613:C14Jun07:32:53.513*RDB:0MBofmemoryusedbycopy-on-write21227:M14Jun07:32:53.612*Backgroundsavingterminatedwithsuccess21227:M14Jun07:32:53.612*Synchronizationwithslave127.0.0.1:8002succeeded

上述就是小编为大家分享的如何设置redis集群密码了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注亿速云行业资讯频道。