Linux系统之Centos 7下安装Redis 4.0.6

1、安装redis
第一步：下载redis安装包
wget http://download.redis.io/releases/redis-4.0.6.tar.gz
[root@localhost 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
[root@localhost local]# tar -zxvf redis-4.0.6.tar.gz

第三步：yum安装gcc依赖

yum install gcc
[root@localhost local]# yum install gcc　　
遇到选择,输入y即可



第四步：跳转到redis解压目录下
cd redis-4.0.6
[root@localhost local]# cd redis-4.0.6

第五步：编译安装
make MALLOC=libc　　
[root@localhost 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
[root@localhost 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
[root@localhost redis-4.0.6]# cd src

1、直接启动redis

./redis-server

[root@localhost 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关闭窗口。

2、以后台进程方式启动redis

第一步：修改redis.conf文件
daemonize no　　
修改为
daemonize yes
第二步：指定redis.conf文件启动
./redis-server /usr/local/redis-4.0.6/redis.conf

[root@localhost 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

[root@localhost 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
[root@localhost 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
[root@localhost 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

[root@localhost 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

[[root@localhost 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

[[root@localhost 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

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

[root@localhost 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

[[root@localhost ~]# 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

[[root@localhost ~]# service redisd stop

Stopping …
Redis stopped

基于php7.1安装redis扩展
1、安装phpize（用来安装php扩展）

yum install php-devel
2、下载redis扩展，楼主在/data/download下；NOTICE：这里可能会有坑，若想尝试，请继续，不想请直接跳到第8步
wget https://github.com/nicolasff/phpredis/archive/master.zip
3、解压

若没有unzip，使用yum install unzip

unzip master.zip
4、编译，配置，编译

编译，cd到源码包

phpize

配置

./configure --with-php-config=/usr/local/php-7.0.14/bin/php-config

编译

make && make install
5、查看是否有扩展redis.so

6、修改php.ini

打开php.ini，将extension=redis.so，添加进去

vim /usr/local/php7-0.14/etc/php.ini
7、重启php-fpm
killall php-fpm

/usr/local/php7-0.14/sbin/php-fpm

报错，经过仔细排查，发现php7无法加载redis，就是楼主的redis的版本不支持php7，已哭晕在厕所，经过排除万难的不懈努力，终于找到了一个可用的。。。
8、重新安装redis扩展

下载这个扩展，依旧在/data/download下，是解压好的，所以无需再次解压

git clone https://github.com/edtechd/phpredis
重复上面的4~7步骤，

到这里，安装成功！