CENTOS7下安装REDIS 配置开机自起

 

第一步：下载redis安装包

wget http://download.redis.io/releases/redis-4.0.6.tar.gz

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[root@iZwz991stxdwj560bfmadtZ local]# wget http://download.redis.io/releases/redis-4.0.6.tar.gz --2017-12-13 12:35:12--  http://download.redis.io/releases/redis-4.0.6.tar.gz Resolving download.redis.io (download.redis.io)... 109.74.203.151 Connecting to download.redis.io (download.redis.io)|109.74.203.151|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1723533 (1.6M) [application/x-gzip] Saving to: ‘redis-4.0.6.tar.gz’   100%[==========================================================================================================>] 1,723,533    608KB/s   in 2.8s     2017-12-13 12:35:15 (608 KB/s) - ‘redis-4.0.6.tar.gz’ saved [1723533/1723533]

 

第二步：解压压缩包

tar -zxvf redis-4.0.6.tar.gz

1	[root@iZwz991stxdwj560bfmadtZ local]# tar -zxvf redis-4.0.6.tar.gz

　

第三步：yum安装gcc依赖

yum install gcc

1	[root@iZwz991stxdwj560bfmadtZ local]# yum install gcc

1	遇到选择,输入y即可<br><br><br>

第四步：跳转到redis解压目录下

cd redis-4.0.6

1	[root@iZwz991stxdwj560bfmadtZ local]# cd redis-4.0.6

 

第五步：编译安装

make MALLOC=libc　　

1	[root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# make MALLOC=libc

　　

将/usr/local/redis-4.0.6/src目录下的文件加到/usr/local/bin目录

cd src && make install

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[root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# cd src && make install     CC Makefile.dep   Hint: It's a good idea to run 'make test' ;)       INSTALL install     INSTALL install     INSTALL install     INSTALL install     INSTALL install

　　

第六步：测试是否安装成功 

先切换到redis src目录下

1	[root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# cd src

 

1、直接启动redis

./redis-server

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[root@iZwz991stxdwj560bfmadtZ src]# ./redis-server 18685:C 13 Dec 12:56:12.507 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 18685:C 13 Dec 12:56:12.507 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=18685, just started 18685:C 13 Dec 12:56:12.507 # Warning: no config file specified, using the default config. In order to specify a config file use ./redis-server /path/to/redis.conf                 _._                                                             _.-``__ ''-._                                                   _.-``    `.  `_.  ''-._           Redis 4.0.6 (00000000/0) 64 bit   .-`` .-```.  ```\/    _.,_ ''-._                                    (    '      ,       .-`  | `,    )     Running in standalone mode  |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379  |    `-._   `._    /     _.-'    |     PID: 18685   `-._    `-._  `-./  _.-'    _.-'                                    |`-._`-._    `-.__.-'    _.-'_.-'|                                   |    `-._`-._        _.-'_.-'    |           http://redis.io          `-._    `-._`-.__.-'_.-'    _.-'                                    |`-._`-._    `-.__.-'    _.-'_.-'|                                   |    `-._`-._        _.-'_.-'    |                                    `-._    `-._`-.__.-'_.-'    _.-'                                         `-._    `-.__.-'    _.-'                                                 `-._        _.-'                                                         `-.__.-'                                                 18685:M 13 Dec 12:56:12.508 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128. 18685:M 13 Dec 12:56:12.508 # Server initialized 18685:M 13 Dec 12:56:12.508 # WARNING overcommit_memory is set to 0! 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. 18685:M 13 Dec 12:56:12.508 # 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. 18685:M 13 Dec 12:56:12.508 * Ready to accept connections

 

如上图：redis启动成功，但是这种启动方式需要一直打开窗口，不能进行其他操作，不太方便。

按 ctrl + c可以关闭窗口。

　　

2、以后台进程方式启动redis

第一步：修改redis.conf文件

将

1	daemonize no

修改为

1	daemonize yes

第二步：指定redis.conf文件启动

1	./redis-server /usr/local/redis-4.0.6/redis.conf

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[root@iZwz991stxdwj560bfmadtZ src]# ./redis-server /usr/local/redis-4.0.6/redis.conf 18713:C 13 Dec 13:07:41.109 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 18713:C 13 Dec 13:07:41.109 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=18713, just started 18713:C 13 Dec 13:07:41.109 # Configuration loaded

 

第三步：关闭redis进程

首先使用ps -aux | grep redis查看redis进程

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[root@iZwz991stxdwj560bfmadtZ src]# ps -aux | grep redis root     18714  0.0  0.1 141752  2008 ?        Ssl  13:07   0:00 ./redis-server 127.0.0.1:6379 root     18719  0.0  0.0 112644   968 pts/0    R+   13:09   0:00 grep --color=auto redis

 

使用kill命令杀死进程

1	[root@iZwz991stxdwj560bfmadtZ src]# kill -9 18714

第七步：设置redis开机自启动

1、在/etc目录下新建redis目录

mkdir redis

1	[root@iZwz991stxdwj560bfmadtZ etc]# mkdir redis

 

2、将/usr/local/redis-4.0.6/redis.conf 文件复制一份到/etc/redis目录下，并命名为6379.conf　　

1	[root@iZwz991stxdwj560bfmadtZ redis]# cp /usr/local/redis-4.0.6/redis.conf /etc/redis/6379.conf

　　

3、将redis的启动脚本复制一份放到/etc/init.d目录下

1	[root@iZwz991stxdwj560bfmadtZ init.d]# cp /usr/local/redis-4.0.6/utils/redis_init_script /etc/init.d/redisd

　　

4、设置redis开机自启动

先切换到/etc/init.d目录下

然后执行自启命令

1 2	[root@iZwz991stxdwj560bfmadtZ init.d]# chkconfig redisd on service redisd does not support chkconfig

看结果是redisd不支持chkconfig

解决方法：

使用vim编辑redisd文件，在第一行加入如下两行注释，保存退出

1 2	# chkconfig:   2345 90 10 # description:  Redis is a persistent key-value database

注释的意思是，redis服务必须在运行级2，3，4，5下被启动或关闭，启动的优先级是90，关闭的优先级是10。

 

再次执行开机自启命令，成功

1	[root@iZwz991stxdwj560bfmadtZ init.d]# chkconfig redisd on

　　

现在可以直接已服务的形式启动和关闭redis了

启动：

service redisd start　　

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[root@izwz991stxdwj560bfmadtz ~]# service redisd start Starting Redis server... 2288:C 13 Dec 13:51:38.087 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 2288:C 13 Dec 13:51:38.087 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=2288, just started 2288:C 13 Dec 13:51:38.087 # Configuration loaded

关闭：

service redisd stop

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[root@izwz991stxdwj560bfmadtz ~]# service redisd stop Stopping ... Redis stopped

测试是否成功：

 

<?php
    //连接本地的 Redis 服务
   $redis = new Redis();
   $redis->connect('127.0.0.1', 6379);
   //$redis->auth('123456');//未设置密码
   echo "Connection to server sucessfully";
   //查看服务是否运行
   echo "Server is running: " . $redis->ping();

 

参考资料：

1、http://blog.youkuaiyun.com/zc474235918/article/details/50974483

2、http://blog.youkuaiyun.com/gxw19874/article/details/51992125

 

如果出现如下问题：

1 2	[root@iZwz991stxdwj560bfmadtZ ~]# service redisd start /var/run/redis_6379.pid exists, process is already running or crashed

可参考资料：http://blog.youkuaiyun.com/luozhonghua2014/article/details/54649295

引起这类问题一般都是强制关掉电源或断电造成的，也是没等linux正常关机。

科学的处理办法2种：

 

1. 可用安装文件启动     redis-server /etc/redis/6379.conf
2. shutdown -r now 软重启让系统自动恢复下就行了