redis在Linux下的安装、配置以及问题处理

一、redis下载

去redis官网进行下载，进入页面如下图所示：

二、redis在Linux系统安装

虚拟机：vmware 14 pro 镜像：centos 7.4

1、新建soft文件，上传下载的redis-5.0.3.tar.gz到Linux下的soft目录下；

2、安装redis编译的c环境，命令：yum install gcc-c++

出现这个表示，编译成功：

Hint: It's a good idea to run 'make test' ;)

make[1]: 离开目录“/usr/local/redis/src”

3、解压到/usr/local下，命令：tar -xvf redis-5.0.3.tar.gz -C/usr/local

4、进入redis-5.0.3目录，使用make命令编译redis，命令：make

这一步注意：

若出现以下错误：

cd src && make all
make[1]: Entering directory `/root/redis-5.0.3/src‘
    CC adlist.o
In file included from adlist.c:34:
zmalloc.h:50:31: error: jemalloc/jemalloc.h: No such file or directory
zmalloc.h:55:2: error: #error "Newer version of jemalloc required"
make[1]: *** [adlist.o] Error 1
make[1]: Leaving directory `/root/redis-5.0.3/src‘
make: *** [all] Error 2

解决办法：输入命令：make all

5、在redis-5.0.3目录中，安装 redis到/usr/local/redis中。

使用命令：make PREFIX=/usr/local/redis install

注意这里的redis目录是按照目录，redis-5.0.3目录是解压目录

6、前端模式启动redis服务：

进入redis/bin目录下，输入命令：./redis-server,若出现以下页面代表启动成功

              _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 5.0.3 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 8626
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

8626:M 28 Dec 2018 16:41:06.715 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.

7、进入redis-5.0.3目录中，拷贝redis-5.0.3中的redis.conf到安装目录redis中，

命令：cp redis.conf ../redis/bin/

8、后端模式启动redis服务：

进入redis/bin目录下，修改redis.conf的配置文件，daemonize yes以后，后端模式启动

命令：vi /usr/local/redis/bin/redis.conf

################################# 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 /var/run/redis.pid when daemonized.
daemonize yes

# If you run Redis from upstart or systemd, Redis can interact with your
# supervision tree. Options:

9、后端模式启动redis服务：

进入redis/bin目录下，

输入命令：./redis-server redis.conf

启动客户端：输入命令：./redis-cli

如下所示，表示启动成功：

[root@localhost bin]# ls
dump.rdb         redis-check-aof  redis-cli   redis-sentinel
redis-benchmark  redis-check-rdb  redis.conf  redis-server
[root@localhost bin]# ./redis-server redis.conf 
8779:C 28 Dec 2018 17:21:17.347 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
8779:C 28 Dec 2018 17:21:17.347 # Redis version=5.0.3, bits=64, commit=00000000, modified=0, pid=8779, just started
8779:C 28 Dec 2018 17:21:17.347 # Configuration loaded
[root@localhost bin]# ./redis-cli 
127.0.0.1:6379> set username zhangsan
OK
127.0.0.1:6379> get username
"zhangsan"
127.0.0.1:6379>

10、关闭redis服务

关闭方式一：（杀死进程 kill -9 pid）

出现如下所示表示关闭成功：

127.0.0.1:6379> exit
[root@localhost bin]# ps -ef | grep redis
root       8780      1  0 17:21 ?        00:00:00 ./redis-server 127.0.0.1:6379
root       8788   7355  0 17:26 pts/0    00:00:00 grep --color=auto redis
[root@localhost bin]# kill -9 8780
[root@localhost bin]# ./redis-c
redis-check-aof  redis-check-rdb  redis-cli        
[root@localhost bin]# ./redis-cli 
Could not connect to Redis at 127.0.0.1:6379: Connection refused
not connected>

关闭方式二：（shutdown）

如下图所示表示关闭成功：

not connected> 
not connected> exit
[root@localhost bin]# ./redis-server redis.conf 
8790:C 28 Dec 2018 17:31:05.380 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
8790:C 28 Dec 2018 17:31:05.380 # Redis version=5.0.3, bits=64, commit=00000000, modified=0, pid=8790, just started
8790:C 28 Dec 2018 17:31:05.380 # Configuration loaded
[root@localhost bin]# ./redis-cli 
127.0.0.1:6379> exit
[root@localhost bin]# ./redis-cli shutdown
[root@localhost bin]# ./redis-cli 
Could not connect to Redis at 127.0.0.1:6379: Connection refused
not connected>

11、如需远程连接redis，需配置redis端口6379在linux防火墙中开发

/sbin/iptables -I INPUT -p tcp --dport 6379 -j ACCEPT

/etc/rc.d/init.d/iptables save

三、向redis服务器发送命令

redis-cli连上redis服务后，可以在redis命令行发送命令

1、ping ，测试客户端与redis的连接是否正常，如果连接正常会收到回复PONG

[root@localhost bin]# ./redis-server redis.conf 
8826:C 28 Dec 2018 17:37:15.587 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
8826:C 28 Dec 2018 17:37:15.587 # Redis version=5.0.3, bits=64, commit=00000000, modified=0, pid=8826, just started
8826:C 28 Dec 2018 17:37:15.587 # Configuration loaded
[root@localhost bin]# ./redis-cli 
127.0.0.1:6379> ping
PONG
127.0.0.1:6379>

2、set/get，使用set和get可以向redis设置数据、获取数据

127.0.0.1:6379> set name zhangsan
OK
127.0.0.1:6379> get name
"zhangsan"
127.0.0.1:6379>

3、del 删除指定key的内容

127.0.0.1:6379> set name zhangsan
OK
127.0.0.1:6379> del name
(integer) 1
127.0.0.1:6379> keys *
(empty list or set)
127.0.0.1:6379>

redis在Linux下的安装、配置以及问题处理

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