Redis high performance in memory kv store

High available (cluster) and supports pub/sub
Architecture explained

Examples $ redis-cli

Open cli
```
$ redis-cli
127.0.0.1:6379>
```
Login if redis is started with password
```
127.0.0.1:6379> AUTH <pwd>
OK
```

Send msg to a channel

127.0.0.1:6379> PUBLISH ChannelName Hi
(integer) 1

View server info

127.0.0.1:6379> info
# Server
redis_version:5.0.7
...
redis_mode:standalone
...
uptime_in_seconds:27544159
uptime_in_days:318
...
# Keyspace
db0:keys=2716127,expires=1097,avg_ttl=151353