REDIS运维管理常用命令

REDIS命令

以下命令中，{host}为redis实例服务器IP地址，{port}为服务端口，默认6379。

一般常用命令

redis服务启动

redis-server redis.conf

redis服务关闭

redis-cli -h {host} -p {port} --user {username} -a {password} shutdown [save|nosave]

redis基本信息

redis-cli -h {host} -p {port} --user {username} -a {password} info [{parameter}]

其中，parameter可以是以下关键字：

• server
• clients
• memory
• persistence
• stats
• replication
• cpu
• cluster
• keyspace

redis日志路径

redis-cli -h {host} -p {port} --user {username} -a {password} config get logfile

检查服务是否可用

redis-cli -h {host} -p {port} --user {username} -a {password} ping

统计key总数

redis-cli -h {host} -p {port} --user {username} -a {password} dbsize

后台进程重写AOF

redis-cli -h {host} -p {port} --user {username} -a {password} bgrewriteaof

后台保存rdb快照

redis-cli -h {host} -p {port} --user {username} -a {password} bgsave

保存rdb快照

redis-cli -h {host} -p {port} --user {username} -a {password} save

上次保存时间

redis-cli -h {host} -p {port} --user {username} -a {password} lastsave

清空所有库所有键（高危操作）

redis-cli -h {host} -p {port} --user {username} -a {password} flushall

清空当前库所有键（高危操作）

redis-cli -h {host} -p {port} --user {username} -a {password} flushdb

查看当前连接客户端

redis-cli -h {host} -p {port} --user {username} -a {password} client list

杀掉某个客户端

redis-cli -h {host} -p {port} --user {username} -a {password} client kill {client_addr}

获取相关参数

redis-cli -h {host} -p {port} --user {username} -a {password} config get {parameter}

设置相关参数

redis-cli -h {host} -p {port} --user {username} -a {password} config set {parameter}

重置info统计信息

redis-cli -h {host} -p {port} --user {username} -a {password} config resetstat

查看redis慢查询

redis-cli -h {host} -p {port} --user {username} -a {password} slowlog get

redis慢查询数量

redis-cli -h {host} -p {port} --user {username} -a {password} slowlog len

慢查询记录

redis-cli -h {host} -p {port} --user {username} -a {password} slowlog reset

实时监控

redis-cli -h {host} -p {port} --user {username} -a {password} monitor

查看节点角色

redis-cli -h {host} -p {port} --user {username} -a {password} role

查看配置的ACL用户及权限

redis-cli -h {host} -p {port} --user {username} -a {password} acl list

哨兵模式常用命令

redis哨兵启动

redis-sentinel sentinel.conf

redis哨兵信息

redis-cli -p {sentinel_port} info [{parameter}]

从指定节点复制数据

redis-cli -h {host} -p {port} --user {username} -a {password} replicaof {host} {port}

执行数据复制

redis-cli -h {host} -p {port} --user {username} -a {password} sync

集群模式常用命令

redis集群添加节点

redis-cli -h {host} -p {port} --user {username} -a {password} cluster meet {host} {port}

redis集群信息查看

redis-cli -h {host} -p {port} --user {username} -a {password} cluster nodes

redis集群分配槽位

redis-cli -h {host} -p {port} --user {username} -a {password} cluster addslots {{n1}..{n2}}

集群节点建立复制

redis-cli -h {host} -p {port} --user {username} -a {password} cluster replicate {node_id}

集群配置保存

redis-cli -h {host} -p {port} --user {username} -a {password} cluster saveconfig

执行数据同步

redis-cli -h {host} -p {port} --user {username} -a {password} sync

性能测试常用命令

测试redis性能

redis-benchmark -h {host} -p {port} -c {concurrency} -n {requests}

测试指定字节的数据包的性能

redis-benchmark -h {host} -p {port} -q -d {bytes}

测试某些命令性能、

redis-benchmark -t {command1,command2} -n {requests} -q

测试某些数值存取的性能

redis-benchmark -n {requests} -q script load "redis.call('set','foo','bar')"

SENTINEL命令

如果要连接到SENTINEL节点，将IP地址改为哨兵节点的地址和端口（默认26379）。

获取指定参数值

redis-cli -h {host} -p 26379 sentinel config get <param_name>

配置指定参数值

redis-cli -h {host} -p 26379 sentinel config set <param_name> <param_value>

根据名字获取主实例节点IP和端口

redis-cli -h {host} -p 26379 sentinel get-master-addr-by-name <master_name>

获取主实例状态信息

redis-cli -h {host} -p 26379 sentinel master <master_name>

获取主实例/从实例/哨兵节点的状态信息

redis-cli -h {host} -p 26379 sentinel masters
redis-cli -h {host} -p 26379 sentinel replicas <master_name>
redis-cli -h {host} -p 26379 sentinel sentinels <master_name>

强制故障转移，不考虑原主实例是否可达，也不需事先征得其他节点投票同意

redis-cli -h {host} -p 26379 sentinel failover <master_name>

获取基本信息

redis-cli -h {host} -p 26379 info [<param>]

检查客户端连接

redis-cli -h {host} -p 26379 client list

References：
【1】https://redis.io/commands/info/
【2】https://redis.io/docs/management/sentinel/#sentinel-commands