接觸linux不久，安裝redis爬坑過來，在此記錄分享！
一、安裝redis
第一步：下載redis安裝包
wget http://download.redis.io/releases/redis-4.0.6.tar.gz
[root@lin ~]$ 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：解壓壓縮包
tar -zxvf redis-4.0.6.tar.gz
[root@lin ~]$ tar -zxvf redis-4.0.6.tar.gz
第三步：yum安裝gcc依賴
yum install gcc
[root@lin ~]$ yum install gcc
一路選擇 Y 即可。
第四步：跳轉到redis解壓目錄下
cd redis-4.0.6
[root@lin ~]$ cd redis-4.0.6
第五步：編譯安裝
make MALLOC=libc
[root@lin redis-4.0.6]$ make MALLOC=libc
將/usr/local/redis-4.0.6/src目錄下的文件加到/usr/local/bin目錄
注意：/user/local/根據自己安裝設置的目錄填寫。（參考本機： /home/lin/ ）
cd src && make install
[root@lin 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
二、啓動redis的三種方式
先切換到redis src目錄下
[root@lin redis-4.0.6]$ cd src
1、直接啓動redis
./redis-server
[root@lin 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
按 ctrl + c可以關閉窗口。
2、以後臺進程方式啓動redis
第一步：修改redis.conf文件
將
daemonize no
修改爲
daemonize yes
protected-mode no
第二步：指定redis.conf文件啓動
./redis-server /usr/local/redis-4.0.6/redis.conf
[root@lin 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：關閉redis進程
首先使用ps -aux | grep redis查看redis進程
[root@lin 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命令殺死進程(需要管理員權限）
[root@lin src]$ kill 18714
3、設置redis開機自啓動
1、在/etc目錄下新建redis目錄
mkdir redis
進入 etc 可以直接 cd /etc
[root@lin etc]$ mkdir redis
2、將/usr/local/redis-4.0.6/redis.conf 文件複製一份到/etc/redis目錄下，並命名爲6379.conf
[root@lin redis]$ cp /usr/local/redis-4.0.6/redis.conf /etc/redis/6379.conf
3、將redis的啓動腳本複製一份放到/etc/init.d目錄下
[root@lin init.d]$ cp /usr/local/redis-4.0.6/utils/redis_init_script /etc/init.d/redisd
4、設置redis開機自啓動
先切換到/etc/init.d目錄下
然後執行自啓命令
[root@lin init.d]$ chkconfig redisd on
service redisd does not support chkconfig
看結果是redisd不支持chkconfig
解決方法：
使用vim編輯redisd文件，在第一行加入如下兩行註釋，保存退出
# chkconfig: 2345 90 10
# description: Redis is a persistent key-value database
（vim 指定文件） 打開後 點擊i 進行編輯 編輯完 按下ESC 然後打上命令 :wq
註釋的意思是，redis服務必須在運行級2，3，4，5下被啓動或關閉，啓動的優先級是90，關閉的優先級是10。
#!/bin/sh
# chkconfig: 2345 90 10
# description: Redis is a persistent key-value database
再次執行開機自啓命令，成功
[root@lin init.d]$ chkconfig redisd on
現在可以直接已服務的形式啓動和關閉redis了
啓動：
service redisd start
[root@lin ~]$ 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
關閉：
方法1：service redisd stop
[root@lin ~]$ service redisd stop
Stopping ...
Redis stopped
方法2：redis-cli SHUTDOWN
三、遠程連接redis
在本地安裝RedisDesktopManager 連接redis發現一直連接不上。
1、cmd ping linux ip 看是否可以連接成功。
2、檢查端口是否開啓
檢查防火牆是否開啓了6379端口：
執行命令：firewall-cmd --query-port=6379/tcp，如果出現no，此時執行命令：firewall-cmd --add-port=6379/tcp，將6379端口開啓，返回success。