Redis Master-Slave Edition

Last updated: 2019-09-20 17:47:31


About Redis Master/Slave

Redis Master/Slave is the most common Redis version, which is compatible with protocols and commands in Redis 2.8, and will be compatible with Redis 4.0 soon. Redis Master/Slave uses a master/slave node deployment architecture to provide data persistence and backup. It is suitable for scenarios that require data reliability and availability. The master node provides daily service access and the slave node provides high availability (HA). When the master node fails, the system automatically switches the service to the slave node to ensure the smooth business operation.

Features of Redis Master/Slave

  • Robust service

    Adopts the master/slave backup architecture, with the master/slave nodes located on different physical servers. The master node supports external access. You can add, delete, modify and query data through Redis command lines and general clients. When the master node fails, the self-developed HA system automatically switches the service to the slave node to ensure the smooth business operation.

  • Reliable data

    The data persistence feature is enabled by default, and all data is stored to disks. It provides the data backup feature. You can roll back or clone instances using the corresponding backup set, so as to avoid misoperation on data.

    Use limits

    • Redis Master/Slave is available with a capacity ranging from 0.25 GB to 60 GB. If you need higher specifications, you can select CKV Master/Slave, which supports up to 384 GB, or Redis Cluster, which supports up to 2 TB.
    • Redis Master/Slave provides the ability to handle up to 100,000 queries per second. If you need higher QPS, select Redis Cluster or CKV Cluster, which supports up to 10 million QPS.


    Redis Master/Slave is built on Redis 2.8 and is compatible with Redis protocols and commands. Self-built Redis databases can be smoothly migrated to Redis Standard. A data transmission service (DTS) is also provided for migration of incremental Redis data to ensure the smooth business transition. Command compatibility is as follows:

  • Commands supported by Redis Master/Slave

connection family hashes family keys family lists family pub/sub family server family
auth hdel del lindex psubscribe command
echo hexists scan linsert pubsub dbsize
ping hget exists llen publish info
quit hgetall expire lpop punsubscribe time
select hincrby expireat lpush subscribe
hincrbyfloat keys lpushx unsubscribe
hkeys type lrange
hlen move lrem
hmget ttl lset
hmset persist ltrim
hset pexpire rpop
hsetnx pexpireat rpoplpush
hstrlen pttl rpush
hvals randomkey rpushx
hscan rename blpop
renamenx brpop
sort brpoplpush
sets family sorted sets family strings family transactions family
sadd zadd append discard
scard zcard bitcount exec
sdiff zcount bitop multi
sdiffstore zincrby bitpos unwatch
sinter zinterstore decr watch
sinterstore zlexcount decrby
sismember zrange get
smembers zrangebylex getbit
smove zrangebyscore getrange
spop zrank getset
srandmember zrem incr
srem zremrangebylex incrby
sscan zremrangebyrank incrbyfloat
sunion zremrangebyscore mget
sunionstore zrevrange mset
zrevrangebylex msetnx
zrevrangebyscore psetex
zscore setex
zrevrank set
zscan setbit
zunionstore setnx
  • Commands not supported by Redis Master/Slave
cluster family connection family geo family hyperloglog family keys family scripting family server family strings family
cluster addslots swapdb geoadd pfadd touch eval bgrewriteaof bitfield
cluster count-failure-reports geohash pfcount restore evalsha bgsave
cluster countkeyinslot geopos pfmerge object script debug client kill
cluster delslots geodist unlink script exists client list
cluster failover georadius wait script flush client getname
cluster forget georadiusbymember migrate script kill client pause
cluster getkeysinslot dump script load client reply
cluster info client setname
cluster keyslot command count
cluster meet command getkeys
cluster nodes command info
cluster replicate config get
cluster reset config rewrite
cluster saveconfig config set
cluster set-config-epoch config resetstat
cluster setslot debug object
cluster slaves debug segfault
cluster slots flushall
readonly flushdb
readwrite lastsave