Redis安装

1.准备工作：下载安装最新版的gcc编译器

注意：Centos6版本以上只能使用gcc8以上版本进行编译

sudo yum install centos-release-scl scl-utils-build; 
sudo yum install -y devtoolset-8-toolchain;
# 注意: 执行此命令会自动切换到 root 用户
sudo  scl enable devtoolset-8 bash

问题1：Cannot find a valid baseurl for repo: centos-sclo-sclo/x86_64
问题2：Cannot find a valid baseurl for repo: centos-sclo-rh/x86_64
问题3：Could not resolve host: mirrorlist.centos.org; Unknown error
问题4：No package centos-release-scl available

终极解决办法：

1.创建阿里云yum源

1.1 编辑CentOS-Base.repo文件

  vim /etc/yum.repos.d/CentOS-Base.repo

1.2 写入内容

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#released updates 
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

1.3 编辑CentOS-SCLo-rh.repo文件

vim /etc/yum.repos.d/CentOS-SCLo-rh.repo

1.4 写入内容

[centos-sclo-rh]
name=CentOS-7 - SCLo rh
baseurl=https://mirrors.aliyun.com/centos/7/sclo/x86_64/rh/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

1.5 编辑CentOS-SCLo-scl.repo

vim /etc/yum.repos.d/CentOS-SCLo-scl.repo

1.6 写入内容

# CentOS-SCLo-sclo.repo
#
# Please see http://wiki.centos.org/SpecialInterestGroup/SCLo for more
# information

[centos-sclo-sclo]
name=CentOS-7 - SCLo sclo
# baseurl=http://mirror.centos.org/centos/7/sclo/$basearch/sclo/
baseurl=http://mirrors.aliyun.com/centos/7/sclo/x86_64/sclo/
#mirrorlist=http://mirrorlist.centos.org?arch=$basearch&release=7&repo=sclo-sclo
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

#[centos-sclo-rh]
#name=CentOS-7 - SCLo rh
#baseurl=https://mirrors.aliyun.com/centos/7/sclo/x86_64/rh/
#gpgcheck=1
#enabled=1
#gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

[centos-sclo-sclo-testing]
name=CentOS-7 - SCLo sclo Testing
baseurl=http://buildlogs.centos.org/centos/7/sclo/$basearch/sclo/
gpgcheck=0
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

[centos-sclo-sclo-source]
name=CentOS-7 - SCLo sclo Sources
baseurl=http://vault.centos.org/centos/7/sclo/Source/sclo/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

[centos-sclo-sclo-debuginfo]
name=CentOS-7 - SCLo sclo Debuginfo
baseurl=http://debuginfo.centos.org/centos/7/sclo/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

1.7 yum重建

yum clean all;
yum makecache;

2.测试 gcc版本

gcc --version 

2.下载redis-6.0.8.tar.gz，置于 /opt/software 目录下

cd /opt/software;
wget http://download.redis.io/releases/redis-6.0.8.tar.gz

3.解压

tar -zxvf redis-6.0.8.tar.gz -C ../module/

4. 解压完成后进入目录 redis-6.0.8

cd ../module/redis-6.0.8/

5.在redis-6.0.8目录下执行make命令（只是编译好）

make

问题1: Jemalloc/jemalloc.h：没有那个文件

解决办法：

5.1 运行make distclean

make distclean

6. 在redis-6.0.8目录下再次执行make命令（只是编译好）

make

7.执行make install

make install

8.跳转到安装目录：/usr/local/bin

cd /usr/local/bin;

9.备份redis.conf

cp /opt/module/redis-6.0.8/redis.conf ~/my_redis.conf

10.更改配置文件

vim my_redis.conf；

1.将 daemonize no 改为 daemonize yes ，让服务在后台启动
2.注释掉bind 127.0.0.1
3.protected-mode默认为yes，修改为no

11.后台启动redis

redis-server  ~/my_redis.conf

12.用客户端访问

redis-cli
127.0.0.1:6379>

13.测试验证

127.0.0.1:6379> ping
PONG
127.0.0.1:6379>

13. 单实例关闭Redis

redis-cli
shutdown

14. 多实例关闭Redis，指定端口关闭

redis-server ~/my_redis.conf 
redis-cli -p 6379 shutdown

IDEA连接Redis时需注意：
1）禁用Linux防火墙
[atguigu@hadoop102 ~]$ sudo systemctl stop firewalld
[atguigu@hadoop102 ~]$ sudo systemctl disable firewalld
2）修改redis.conf
注释掉bind 127.0.0.1
protected-mode默认为yes，修改为no