使用homebrew安装redis

1	$ brew install redis

终端输出

==> Downloading http://download.redis.io/releases/redis-3.2.3.tar.gz
######################################################################## 100.0%
==> make install PREFIX=/usr/local/Cellar/redis/3.2.3 CC=clang
==> Caveats
To have launchd start redis now and restart at login:
  brew services start redis
Or, if you don't want/need a background service you can just run:
  redis-server /usr/local/etc/redis.conf
==> Summary
🍺  /usr/local/Cellar/redis/3.2.3: 10 files, 1.7M, built in 21 seconds

从以上日志输出可以看出，如果需要给redis服务端指定配置文件，
启动命令应该是这样的:

1	$ redis-server /usr/local/etc/redis.conf

配置文件

安装完成后redis默认的配置文件redis.conf位于

1	/usr/local/etc

同时，redis-sentinel.conf也在这里。

使用cat命令查看redis.conf：

1	$ cat /usr/local/etc/redis.conf

终端输出文件内容（删掉了大部分注释）：

bind 127.0.0.1 ::1
bind 127.0.0.1
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300

################################# GENERAL #####################################

# By default Redis does not run as a daemon. Use 'yes' if you need it.
# Note that Redis will write a pid file in /usr/local/var/run/redis.pid when daemonized.
daemonize no


supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile ""


# Set the number of databases. The default database is DB 0, you can select
# a different one on a per-connection basis using SELECT <dbid> where
# dbid is a number between 0 and 'databases'-1
databases 16

################################ SNAPSHOTTING  ################################

save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb

# The working directory.
dir /usr/local/var/db/redis/

################################# REPLICATION #################################
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100

################################## SECURITY ###################################

################################### LIMITS ####################################

############################## APPEND ONLY MODE ###############################
appendonly no
appendfilename "appendonly.aof" 
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes

################################ LUA SCRIPTING  ###############################
lua-time-limit 5000

################################ REDIS CLUSTER  ###############################


################################## SLOW LOG ##################################

slowlog-max-len 128

################################ LATENCY MONITOR ##############################

latency-monitor-threshold 0

############################# EVENT NOTIFICATION ##############################

notify-keyspace-events ""

############################### ADVANCED CONFIG ###############################
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
aof-rewrite-incremental-fsync yes

官网上对于如何配置redis的描述:

1
2

Redis is able to start without a configuration file using a built-in default configuration, however this setup is only recommended for testing and development purposes.
The proper way to configure Redis is by providing a Redis configuration file, usually called redis.conf.

根据以上内容,如果启动时不指定配置文件,redis会使用程序中内置的默认配置.但是只有在开发和测试阶段才考虑使用内置的默认配置，正式环境最好还是提供配置文件，并且一般命名为redis.conf

启动redis

可以通过以下命令启动redis：

1	$ redis-server /usr/local/etc/redis.conf

终端输出

8568:M 11 Sep 21:37:46.839 * Increased maximum number of open files to 10032 (it was originally set to 256).
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 3.2.3 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 8568
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

8568:M 11 Sep 21:37:46.844 # Server started, Redis version 3.2.3
8568:M 11 Sep 21:37:46.845 * The server is now ready to accept connections on port 6379

可以看出redis服务器启动成功，并在监听6379端口的网络连接。
注意: 使用命令$ redis-server也可以启动,此时并不会加载任何配置文件,使用的是程序中内置(built-in)的默认配置.

检测redis服务器是否启动
重新打开一个终端窗口，输入命令

1	$ redis-cli ping

该终端输出

pong

说明服务器运作正常。

关闭redis

关闭redis有2种方法：

方法1
在执行启动命令的终端窗口使用ctrl+c,此时第一个窗口输出

8773:M 11 Sep 21:46:26.581 # User requested shutdown...
8773:M 11 Sep 21:46:26.581 * Saving the final RDB snapshot before exiting.
8773:M 11 Sep 21:46:26.583 * DB saved on disk
8773:M 11 Sep 21:46:26.583 * Removing the pid file.
8773:M 11 Sep 21:46:26.583 # Redis is now ready to exit, bye bye...

然后在另外一个终端窗口执行$ redis-cli ping,输出

1	Could not connect to Redis at 127.0.0.1:6379: Connection refused

说明确实已关闭

方法2
在另外一个终端窗口执行$ redis-cli shutdown,此时第一个窗口输出

8773:M 11 Sep 21:46:26.581 # User requested shutdown...
8773:M 11 Sep 21:46:26.581 * Saving the final RDB snapshot before exiting.
8773:M 11 Sep 21:46:26.583 * DB saved on disk
8773:M 11 Sep 21:46:26.583 * Removing the pid file.
8773:M 11 Sep 21:46:26.583 # Redis is now ready to exit, bye bye...