[lk@localhost /]$ whereis redis-cli

redis-cli: /usr/local/bin/redis-cli

[lk@localhost /]$

[lk@localhost /]$ whereis redis-server

redis-server: /usr/local/bin/redis-server

redis-server &

[lk@localhost /]$ redis-server &

[]

[lk@localhost /]$ :C  Jul ::41.387 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf

:M  Jul ::41.388 # You requested maxclients of  requiring at least  max file descriptors.

:M  Jul ::41.389 # Redis can't set maximum open files to 10032 because of OS error: Operation not permitted.

:M  Jul ::41.389 # Current maximum open files is . maxclients has been reduced to  to compensate for low ulimit. If you need higher maxclients increase 'ulimit -n'.

                _._

           _.-``__ ''-._

      _.-``    `.  `_.  ''-._           Redis 3.0. (/)  bit

  .-`` .-```.  ```\/    _.,_ ''-._

 (    '      ,       .-`  | `,    )     Running in standalone mode

 |`-._`-...-` __...-.``-._|'` _.-'|     Port:

 |    `-._   `._    /     _.-'    |     PID: 128054

  `-._    `-._  `-./  _.-'    _.-'

 |`-._`-._    `-.__.-'    _.-'_.-'|

 |    `-._`-._        _.-'_.-'    |           http://redis.io

  `-._    `-._`-.__.-'_.-'    _.-'

 |`-._`-._    `-.__.-'    _.-'_.-'|

 |    `-._`-._        _.-'_.-'    |

  `-._    `-._`-.__.-'_.-'    _.-'

      `-._    `-.__.-'    _.-'

          `-._        _.-'

              `-.__.-'                                               

:M  Jul ::41.391 # WARNING: The TCP backlog setting of  cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of .

:M  Jul ::41.391 # Server started, Redis version 3.0.

:M  Jul ::41.392 # WARNING overcommit_memory is set to ! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.

:M  Jul ::41.392 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.

:M  Jul ::41.392 * The server is now ready to accept connections on port 

[root@localhost myredis]# redis-cli -p 6379
127.0.0.1:6379> ping
PONG
127.0.0.1:6379>